Researchers use mutation induction in rice to create high genetic diversity. The basic population with high genetic diversity will facilitate the selection process for the desired good characters. This study aimed to determine the optimal dose that induces the highest genetic diversity in four lowland rice genotypes. The research materials were four genotypes of lowland rice, namely “G10”, “G16”, “Baas Selem”, and “Inpago Unram-1”. Gamma irradiation was carried out at the Center for Isotope and Radiation Application (PAIR) BATAN. Each genotype was irradiated at doses of 200, 300, 400 and 500 Gy. The seeding is done in the glasshouse of the Faculty of Agriculture, University of Mataram. Observations were made on the number of growing seeds, plant height and number of leaves. The LD50 value was determined based on the results of the regression analysis of the number of growing seeds at the four irradiation doses plus control (0 Gy). The results indicated that (1) the numbers of growing seeds decreased as the doses of gamma irradiation increased, (2) the LD50 value of the four rice genotypes ranged from 264 to 518 Gy, (3) the optimal dose of gamma ray irradiation for G10, G16, Baas Selem, and Inpago Unram-1 were 264 Gy, 398 Gy, 316 Gy and 518 Gy, respectively. (4) Among the four rice genotypes teasted, “G10” mutant was the most sensitive to gamma ray irradiation, whereas” Inpago Unram-1” mutant was the least sensitive genotype.
Yellow Mosaic of Legume: Biology, Epidemiology & IDMSaurabh Sarode
The document summarizes a seminar presentation on yellow mosaic diseases of legumes. It discusses mungbean yellow mosaic virus (MYMV) which affects several legume crops including mungbean, blackgram, mothbean, and soybean. MYMV is caused by begomoviruses transmitted by the whitefly Bemisia tabaci. It causes symptoms like yellowing, stunting and loss of yield. Factors like temperature and humidity influence disease spread. Integrated disease management approaches for MYMV include host plant resistance, insecticide application, and weed control. Tables show effects of different management methods on disease incidence and yield.
This document discusses strategies for vegetable breeding. It begins by describing the importance of building a robust germplasm collection through targeted collection of genetic variation. It discusses approaches for developing germplasm, including MAGIC populations which combine genetic material from multiple parents, utilizing wild relatives as a source of novel traits, and gene pyramiding to stack multiple genes controlling traits like disease resistance. The document also outlines how molecular techniques like marker assisted selection and genetic transformation can aid breeding efforts when integrated with conventional methods. It emphasizes that field evaluation remains important for selecting traits adapted to different environments.
Genetic Diversity Studies in Rice for Bacterial Leaf Blight Resistanceijtsrd
Bacterial blight (BLB), caused by Xanthomonas oryzae PV. oryzae (Xoo) is one of the most destructive diseases active in the major rice growing countries of Asia. In field level screening, the genotypes PY5 and Kadaikannan showed immune against rice BLB. Under artificial condition, IR 11C 114, Adukan and Kadaikannan shows resistant to bacterial leaf blight. The trait single plant yield showed positive significant correlation with plant height (0.21), number of productive tillers (0.19) and thousand grain weight (0.37). G. Tamilarasan | M. Arumugam Pillai | R. Kannan | S. Merina Prem Kumari"Genetic Diversity Studies in Rice for Bacterial Leaf Blight Resistance" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15915.pdf http://www.ijtsrd.com/biological-science/pathology/15915/genetic-diversity-studies-in-rice-for-bacterial-leaf-blight-resistance/g--tamilarasan
Turcicum Leaf Blight Resistance Screening and Combining ability studies in MaizeKeerthana Reddy
The document discusses Turcicum leaf blight (TLB) resistance screening and combining ability studies in maize. It provides background on maize as a crop, describes the causal organism and symptoms of TLB, outlines methods for screening maize lines for resistance, and discusses major resistance genes that have been identified.
1) The document studied the population density and damage caused by the melon fruit fly (Bactrocera cucurbitae) on musk melon crops in Pakistan.
2) Traps baited with cue lure were used to monitor melon fruit fly populations from March to May, catching over 2,300 flies.
3) Dissection of over 1,000 infested musk melon fruits revealed 51% contained melon fruit fly pupae, while less than 1% contained the parasitic wasp Trybliographa daci.
Assessment of the curative potency of some plant materials on cowpea seeds wi...Alexander Decker
This document summarizes a study that assessed the ability of various plant materials to control an established infestation of Callosobruchus maculatus (cowpea beetle) in stored cowpeas. Cowpeas were infested for 5 weeks before applying plant powders or the pesticide Actellic. Data was collected over 10 weeks on adult emergence, mortality, and seed damage. The most effective plant materials in reducing adult emergence were Moringa oleifera, Piper guineense, and Ocimum gratissimum. Actellic caused the highest insect mortality. At week 10, M. oleifera, P. guineense and O. gratissimum had weevil perforation indexes
Yellow Mosaic of Legume: Biology, Epidemiology & IDMSaurabh Sarode
The document summarizes a seminar presentation on yellow mosaic diseases of legumes. It discusses mungbean yellow mosaic virus (MYMV) which affects several legume crops including mungbean, blackgram, mothbean, and soybean. MYMV is caused by begomoviruses transmitted by the whitefly Bemisia tabaci. It causes symptoms like yellowing, stunting and loss of yield. Factors like temperature and humidity influence disease spread. Integrated disease management approaches for MYMV include host plant resistance, insecticide application, and weed control. Tables show effects of different management methods on disease incidence and yield.
This document discusses strategies for vegetable breeding. It begins by describing the importance of building a robust germplasm collection through targeted collection of genetic variation. It discusses approaches for developing germplasm, including MAGIC populations which combine genetic material from multiple parents, utilizing wild relatives as a source of novel traits, and gene pyramiding to stack multiple genes controlling traits like disease resistance. The document also outlines how molecular techniques like marker assisted selection and genetic transformation can aid breeding efforts when integrated with conventional methods. It emphasizes that field evaluation remains important for selecting traits adapted to different environments.
Genetic Diversity Studies in Rice for Bacterial Leaf Blight Resistanceijtsrd
Bacterial blight (BLB), caused by Xanthomonas oryzae PV. oryzae (Xoo) is one of the most destructive diseases active in the major rice growing countries of Asia. In field level screening, the genotypes PY5 and Kadaikannan showed immune against rice BLB. Under artificial condition, IR 11C 114, Adukan and Kadaikannan shows resistant to bacterial leaf blight. The trait single plant yield showed positive significant correlation with plant height (0.21), number of productive tillers (0.19) and thousand grain weight (0.37). G. Tamilarasan | M. Arumugam Pillai | R. Kannan | S. Merina Prem Kumari"Genetic Diversity Studies in Rice for Bacterial Leaf Blight Resistance" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15915.pdf http://www.ijtsrd.com/biological-science/pathology/15915/genetic-diversity-studies-in-rice-for-bacterial-leaf-blight-resistance/g--tamilarasan
Turcicum Leaf Blight Resistance Screening and Combining ability studies in MaizeKeerthana Reddy
The document discusses Turcicum leaf blight (TLB) resistance screening and combining ability studies in maize. It provides background on maize as a crop, describes the causal organism and symptoms of TLB, outlines methods for screening maize lines for resistance, and discusses major resistance genes that have been identified.
1) The document studied the population density and damage caused by the melon fruit fly (Bactrocera cucurbitae) on musk melon crops in Pakistan.
2) Traps baited with cue lure were used to monitor melon fruit fly populations from March to May, catching over 2,300 flies.
3) Dissection of over 1,000 infested musk melon fruits revealed 51% contained melon fruit fly pupae, while less than 1% contained the parasitic wasp Trybliographa daci.
Assessment of the curative potency of some plant materials on cowpea seeds wi...Alexander Decker
This document summarizes a study that assessed the ability of various plant materials to control an established infestation of Callosobruchus maculatus (cowpea beetle) in stored cowpeas. Cowpeas were infested for 5 weeks before applying plant powders or the pesticide Actellic. Data was collected over 10 weeks on adult emergence, mortality, and seed damage. The most effective plant materials in reducing adult emergence were Moringa oleifera, Piper guineense, and Ocimum gratissimum. Actellic caused the highest insect mortality. At week 10, M. oleifera, P. guineense and O. gratissimum had weevil perforation indexes
This document summarizes research on advances in plant breeding systems. It discusses how biotechnology tools can help overcome limitations in crop production by improving quantity, quality, and stress tolerance. Molecular markers, marker-assisted selection, genomic selection, and new statistical tools are supporting conventional breeding. Other technologies discussed include standardized field sites, high-throughput phenotyping, DH lines, and various analytical techniques. The document also discusses using tools like CRISPR/Cas9 and RNAi for genetic engineering to introduce beneficial genes. Specific research on okra and rice breeding is summarized, including studies on tissue culture, induced mutations, and marker-assisted selection.
Genetic characterization of morphological and yield traits in ten genotypes of Celosia argentea L. was evaluated
at the Research Farm of the Department of Botany, University of Ibadan, Nigeria. The experiment was laid out
in a randomized complete block design with four replicates. The results of analysis of variance carried out on
early morphological characters of C. argentea L. at 3, 4, and 5weeks after sowing showed significant
(p<0.05 /><0.01) effects except for number of leaves per plant and leaf width at 3 and 5 weeks after sowing,
respectively. The replicates in blocks produced varying observable effects on the genotypes while genotype x
replicate showed significant variation on morpho-agronomic and yield traits except number of days to flowering
at 50 days and fruit length at maturity. Also, from the result of the mean separation, it is shown that
NG/MAY/09/015 performed the best for plant height at flowering, leaf length at flowering, leaf width at
flowering, and root biomass. NG/SA/07/213 produced the highest mean values of number of flowers per plant,
leaf biomass and pod weight at maturity. The highest values of number of primary branches and fruit length at
maturity (FLM) were observed for NG/TO/MAY/09/015, while NG/AO/MAY/09/015 had the highest for pod
weight at maturity. The result of principal component axis also showed that Prin 1 accounted for highest Eigen
Vector of 38.62% from the total variation. NG/MAY/09/015 (R2) genotype produced the highest Eigen Vector
of 6.705 from Prin 1. The correlation result showed that plant height had a significant positive association with
seed weight at maturity, pod weight at maturity, number of primary branches and fruit length at maturity, while
similar association existed between leaf biomass, number of primary branches and pod weight at maturity, as
well as between plant height at flowering and pod weight at maturity. Again, the number of primary branches is
also positive and significantly correlated with plant height, root biomass and leaf length. Furthermore, the
results of dendrogram and minimum spanning tree revealed variations in genetic relatedness and distance,
respectively, which exist among the population of the C. argentea L.
Sixteen genotypes of maize were evaluated for genetic variability and character associations in the Research
Farm of the Department of Botany, University of Ibadan, Nigeria for 90 days in the 2012, 2013 and 2014
cropping seasons. Perforated polythene bags (18 × 9 cm) were filled with 6kg sandy-loam soil and were spaced
at a distance of 10 cm apart between rows. Three seeds from each genotype were then planted per bag without
treatment in three replicates. Data on plant and stem height, leaf width, leaf length and number of leaves were
collected after planting at 14 days interval on each replicate for a particular genotype. The plant height of
EVDT.Y200STRQPM genotype was significantly (p < 0.05) different from other genotypes, while genotype
pairs; TZE-OR2DTSTRQPM and 2009TZE-ORIDTSTRQPM, TZEI 22, TZEI 98 and OBANTAPA, TZEI 4,
TZEI 161, BODIJA as well as EVDT-W99STR, OJO, 98SYNWECSTRQPM were similar to each other. The
result of correlation coefficient shows that stem height was highly significant and positively correlated with the
plant height (p < 0.01; r = 0.91). The genotype is negative and non-correlated with plant height, stem height, leaf
width and number of leaves, but positive and non-significantly associated with leaf length, replicate and week
after planting.
The ethanol extracts of Ficus asperifolia, Mormordica charantia, Anacardium
occidentals and Psidium guajava were evaluated sole and in treatment combinations at 25, 50 and
75mg ml-1 concentration levels against the mycelial growth of Macrophomina phaseolina of
Cowpea. The pathogen was cultured on plates containing botanicals amended Potato Dextrose
Agar (PDA) in three replicates while only ethanol treated PDA tested plates served the control
experiment. The radial growths were recorded at 4th, 6th and 8th day after inoculation. Data
obtained were analysed using the SAS software program version 9.2. The extract of Mormordica
charantia was the most effective in the botanical treatments alone. The most significant inhibition
of Macrophomina phaseolina were observed from the combined treatments of Ficus asperifolia,
Mormordica charantia and Anacardium occidentals (3.11 cm), followed by Mormordica
charantia and Psidium guajava (3.29 cm), then combination of four extracts; Ficus asperifolia,
Mormordica charantia, Anacardium occidentals and Psidium guajava (3.53 cm), then
Mormordica charantia and Anacardium occidentals (3.84 cm). Other treatments, either alone or in
combination produced significant result compared to the control experiment (6.94 cm). However,
the efficacy of botanicals increased with concentration and also significantly correlated with time
and reduction in mycelia extension of the pathogen. More so, variability in the antifungicidal
potentials of the botanicals on Macrophomina phaseolina ranges from 15.93% to 34.06%
according to Eigen proportions. The treatment combinations of; Ficus asperifolia, Mormordica
charantia and Anacardium occidentals at 75mg ml-1 concentration level produced the most
inhibitory effect against Macrophomina phaseolina in vitro. However, the untreated plates did not
show inhibitory effect on the mycelial growth of the pathogen. Therefore, combined treatments of
botanicals could be a potential source in the practice of plant disease control.
Organic Plant Breeding: Achievements, Opportunities, and ChallengesSeeds
Organic plant breeding programs were founded in the 1980s-1990s to develop crop varieties suited to organic systems. Research has shown that the top-yielding varieties in organic systems do not correlate to those in conventional systems, demonstrating the need for organic breeding. Some successful organic breeding programs have developed weed-tolerant and disease-resistant varieties of crops like wheat, maize, barley and tomatoes. Traits important for organic systems include weed tolerance, nutrient use efficiency, and adaptation to nutrient dynamics. Participatory breeding programs have also improved crops suited for small-scale organic farmers. Overall, organic breeding aims to develop varieties adapted to organic conditions while respecting genetic diversity and plant integrity.
The term genetic pollution was popularized by environmentalist Jeremy Rifkin in his book “The Biotech
Century”(1998).Genetic pollution accounts to the uncontrolled spread of genetic information (frequently
referring to transgenes) into the genomes of organisms in which such genes are not present in nature.
Genetically engineered (GE) plants contains genes which have been transferred from unrelated species. These
may come from bacteria, viruses,other plants or even animals. If these ‘foreign’ gene are the n transferred into
other organisms,this causes genetic contamination or pollution of the natural genepool.
Genetic pollution is usually associated with the gene flow from a genetically engineered
(GE)organism(orgeneticallymodifiedorganism-GMO)toanon-GMorganism."Geneticpollution"andcollateral
damage from GE field crops already have begun to wreak environmental havoc. Wind, rain, birds,bees, and
insect pollinators have begun carrying genetically-altered pollen into adjoining fields, polluting the
DNAofcrops oforganicand non-GEfarmers’
DEFINITION
The dispersal of contaminated or altered genes from genetically engineered organism to natural
organism.
"Uncontrolled spread of genetic information (frequently referring to transgenes) into the genomes of
organisms in which such genes are not present in nature”
Gene flow
Gene flow is the movement of genes from one population to another, conferring new traits – the biophysical
characteristics of the organism – to individuals of the recipient population. This happens by cross-pollination
(also called hybridisation), that is, the pollination of members of one population or genetic pool with that of
another.
Transgene flow
Transgene flow is the loss of potentially useful crop genetic diversity in the recipient population (whether
other crops, landraces or wild relatives). Outbreeding depression (the reduction of fitness from hybridisation)
can lead to a decrease in allelic diversity by extinction of members of a diverse gene pool that are less adapted
to survive because of the particular introgressedtransgenic trait .
The pattern of field infestation by the flea beetles, Podagrica spp., was assessed in okra-kenaf intercrop system with a view to determining a cropping pattern that would assist in controlling the pest problem. Okra and kenaf were intercropped in row combinations of 1:1, 1:2, 2:1 and 2:2 while sole-cropped okra and kenaf served for comparison. Field sampling for flea beetles commenced three weeks after planting and it lasted till the 12th week, a period that extended to the postharvest stage of okra. There was a significant difference (P Ë‚ 0.01) between the population of the two Podagrica spp. (with P. uniforma being more abundant than P. sjostedti) and among the six planting patterns. The pest population also differed (P Ë‚ 0.05) between the two crops and among (P Ë‚ 0.001) the vegetative, reproductive and postharvest stages of okra. Sole kenaf had a significantly higher level of infestation by the flea beetles followed by sole okra and two rows of okra intercropped with one row of kenaf in descending order. All the other three intercrop patterns had a significantly lower infestation level. Kenaf attracted more flea beetles than okra at the vegetative stage while stumps of okra left in the field after harvesting was over sustained a significantly higher population of flea beetles. Obtained results showed that intercropping could be used, especially by poor rural farmers, as a pest control strategy against Podagrica spp. Due to the considerable population of flea beetles sustained by okra stumps, farmers should be encouraged to get rid of leftovers after harvesting as a way of further controlling Podagrica spp. The combination of intercropping and farm sanitation would assist in reducing reliance on synthetic chemical insecticides.
Evaluation of rice genotypes for resistance to the stalk-eyed fly (Diopsis lo...Innspub Net
Globally, rice production is limited by abiotic and biotic factors. Of the insect pests attacking rice, the stalk-eyed fly is the most abundant. Major rice growing districts in Uganda are affected, and varieties grown by farmers are susceptible. The objective of this study was to identify sources of resistance to stalk-eyed flies among improved rice genotypes in Uganda. Fifty genotypes from the Africa Rice Centre, IRRI, South Korea and the National Crops Resources Research Institute (NaCRRI) in Uganda were screened under cage and field conditions at NaCRRI. Trials were laid out in an alpha lattice design, with 3 replications, for both experiments. Natural infestation (D. longicornis or D. apicalis) was used in the field while cage trials utilized artificial infestation with D. longicornis. Data on deadhearts were collected from seedling to tillering stages, at 7, 14, 21 and 28 days. Analyses of variance were performed using restricted maximum likelihood. Infestation levels for 31 (62%) rice genotypes were the same under both field and cage conditions, 4 (8%) genotypes showed higher susceptibility in the cage than in the field and 15 (30%) were more resistant in the cage than in the field. Genotypes NERICA 4, TXD306, NM7-22-11-B-P-1-1 and K85 were identified as the most resistant varieties. F3 genotypes (GSR IR1- 5-S14-S2-Y1 x K85, Gigante x NERICA4, NERICA4 x Gigante, NERICA1x NERICA4, NERICA4 x NERICA6, and NERICA4 x SUPA) were also found resistant. These genotypes were recommended for release and further advancement, respectively.
This document summarizes a student's master's seminar presentation on stability for grain yield in little millet. It includes an introduction to little millet, its nutritional value and importance as a crop. It also discusses previous crop improvement efforts including varietal releases. It covers topics like genetic variability, heritability, genetic advance and stability analysis. It presents data on promising new germplasm lines. Finally, it summarizes one case study on genetic variability in little millet genotypes.
Aspects of the ecology of fruit flies in ugandaBrian Isabirye
Fruit flies cause about 40% fruit loss in Africa, and about 73% in Uganda. Design of IPM strategies for fruit flies requires knowledge of their biology. Was limited to Nakasinga, 2002; Nemeye, 2005; Okullokwany, 2006. It is not clear how: Diversity has been shaped by hosts, distribution and envital variability.
Highly cryptic and inter-intra-specific morphological variation (Clarke et al., 2005; Drew et al., 2008) among Bactrocera spp. turns out.
Will change in climate alter the suitability and distribution of species?
Development of drought tolerant maize cultivars is prerequisite to achieving stable grain yield in
drought–prone ecologies of Nigeria’s Guinea savanna. However, success has been limited mainly due
to lack of maize genotypes that show clear differences in response to well defined moisture deficit
condition. Two sets of drought tolerant (DT) maize germplasm were evaluated under screenhouse and
field conditions between 1999 and 2002. In the screenhouse study, performances of the genotypes
were compared under well-watered condition and moisture deficit imposed at different growth stages.
Under field conditions, the first set comprising 11 accessions along with a check were evaluated for 4
growing seasons while the second set which comprised 3 DT varieties were evaluated along with 2
check varieties using monthly plantings between April and August of 2001 and 2002, respectively. In
the first set, post anthesis moisture deficit significantly reduced grain yield by 25 to 73.5% in the open
pollinated varieties (OPVs) and by 20 to 64% in the hybrids. Grain yield under field conditions ranged
from 2.48 to 3.49, 2.82 to 3.73 and 3.58 to 4.76 tons/ha-1 for 1999, 2000 and 2001 full growing seasons,
respectively, and 2.03 to 2.50 tons/ha-1 for 2000 late growing season. In the second set, pre and post
anthesis moisture deficits reduced grain yield by 77.6 and 95.8%, respectively, of well watered
condition while in the field, grain yields in the genotypes were highest for plantings made in April and
July (1.90 - 2.5 t/ha), lowest for August (0.7 -1.8 t/ha) when moisture deficit coincided with
reproductive phase. Yield stability exhibited under moisture deficit and on the field by 8522-2, Oba
super 2 and AK9943-DMRSR in the first set as well as DT-SR-Y C0 and DT-SR-W C0 in the second set,
indicates their suitability either as cultivars per se or as potential source of DT alleles for
development of DT maize varieties for Nigeria’s savanna ecologies.
This document discusses post-harvest technology development of mushrooms in Kathmandu Valley, Nepal. It begins with background on mushroom production globally and in Nepal. It then discusses the problems with high post-harvest losses for mushrooms due to their perishable nature. The purpose of the project is to establish a cold storage facility and processing unit to enable short and long-term storage and marketing of mushrooms year-round. This will help address issues of food security and generate income. The objectives are to develop post-harvest technologies for mushrooms and promote mushroom farming and business in Kathmandu Valley.
The use of plants extracts in the improvement of cowpea yield at dang (Ngaoun...Innspub Net
In the substitution of chemical insecticides with potential biopesticides, the efficiency of Lippia multiflora, Plectranthus glandulosus and Callistemon rigidus were evaluated on the improvement of cowpea (Vinia unguiculata) in Dang (Ngaoundere, Cameroon). The experiment was conducted in a completely randomized block design with 5 treatments repeated 4 times each: the negative control, the positive control (Decis), L. multiflora, P. glandulosus and C. rigidus. These different insecticides were sprayed on cowpea plants with 14 days interval starting from the 14th day after sowing. The parameters collected were the diversity of insect pests, the number of pods, and the dry weight of the grains. All of the insecticides used improved cowpea yields. Although less efficient than Decis, most biopesticides significantly (p < 0.001) improved the yield of cowpeas compared to the negative control. This improvement was 260% for C. rigidus, and 120% for P. glandulosus. These results suggest that C. rigidus, P. glandulosus and L. multiflora could be considered as potential substitutes for chemical insecticides in improving cowpea yields.
Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth Ama...ijtsrd
Four cowpea varieties Oloyin, Drum, Zobo and White Mallam , and four levels of nitrogen fertilizer 20, 40, 60 and 80 kg N ha were applied at 2 weeks after planting WAP to the vegetable Amaranth between October 2018 to April 2019. The cowpea green manure was incorporated into soil 6 WAP and left for a week to decompose before planting the vegetable Amaranth. Growth of cowpea varieties used as green manure in 2018 showed no significant difference. However, in 2019 the canopy height and fresh weight at 3 WAP were significantly p 0.05 different among cowpea varieties. The canopy height of Oloyin, Drum and White Mallam were similar but significantly p 0.05 higher than that of Zobo variety. Similarly, application of 60 and 80 kg N ha significantly produced more yield relative to 0 and 40 kg N ha of inorganic fertilizer rates. Generally, higher significant yield p 0.05 was recorded in the second cycle of planting. This study concluded that green manure from Oloyin produced yield of Amaranth us 11.0 47.3 t ha which was similar to the yield obtained from 80 kg N ha 12.13 37.7t ha . Adeniji Azeez Adewale | Kumoye Deborah Etooluwa "Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth (Amaranthus Caudatus. L) Vegetable" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33676.pdf Paper Url: https://www.ijtsrd.com/biological-science/zoology/33676/effects-of-incorporated-green-manure-and-inorganic-fertilizer-on-amaranth-amaranthus-caudatus-l-vegetable/adeniji-azeez-adewale
Nodulation, Growth and Yield Response of Five Cowpea (Vigna unguiculata L. Wa...Premier Publishers
The experiment was carried out in the screen house of the Department of Crop, Soil & Pest Management, Federal University of Technology, Akure, Nigeria. The experimental layout was a 5 x 3 x 2 factorial combination with 3 replications given a total of 90 treatments. Seeds of five cowpea varieties namely: IT98K-205-8, Ife Brown, Oloyin Brown, IT98K-573-2-1 and IT96D-610 were sown in Plastic buckets of 7-liter capacity and were perforated at the bottom to allow for drainage and filled with top soil. Watering regimes of (500ml, 700ml and 900ml) were imposed and water was applied twice a week while cowpea plants were inoculated with 5g each of Rhizobia strain (Mesorhizobia loti) at seedling stage. Control set was maintained without inoculation. The effect of watering regimes on legume species was significant on nodulation, growth and yield characters of cowpea varieties evaluated. The results revealed marked varietal differences in plant growth, nodulation, yield and yield components. IT98K-573-2-1 and Oloyin Brown generally expressed superior performance in most measured parameters. Mesorhizobia inoculation significantly (p≤0.05) increased plant growth, nodulation, yield and yield components of cowpea. The interaction effect of variety, Mesorhizobia loti and watering regimes caused significant variations in the number of nodules, leaf area, number of seeds/pod and seed yield. The nitrogen and crude protein content in the leaf differed among the cowpea varieties evaluated. Application of mesorhizobium strain significantly increased seed yield of cowpea and caused substantial increase in nodulation and this subsequently affected the Nitrogen fixation potential of cowpea under varying soil moisture regimes.
Types and Percentations of Parasitization Egg Parasitoids Spodoptera frugiper...AI Publications
This document summarizes a study on egg parasitoids of the fall armyworm Spodoptera frugiperda in North Sulawesi, Indonesia. The study identified two types of parasitoids - Telenomus sp. and Trichogramma sp. - through inventory and examination of S. frugiperda egg groups from different regions. Telenomus sp. had a higher presence than Trichogramma sp. across sampling areas. The percentage of parasitization was highest in Manado City at 85% and lowest in Bolaang Mongondow Regency at 5%.
This document summarizes research on advances in plant breeding systems. It discusses how biotechnology tools can help overcome limitations in crop production by improving quantity, quality, and stress tolerance. Molecular markers, marker-assisted selection, genomic selection, and new statistical tools are supporting conventional breeding. Other technologies discussed include standardized field sites, high-throughput phenotyping, DH lines, and various analytical techniques. The document also discusses using tools like CRISPR/Cas9 and RNAi for genetic engineering to introduce beneficial genes. Specific research on okra and rice breeding is summarized, including studies on tissue culture, induced mutations, and marker-assisted selection.
Genetic characterization of morphological and yield traits in ten genotypes of Celosia argentea L. was evaluated
at the Research Farm of the Department of Botany, University of Ibadan, Nigeria. The experiment was laid out
in a randomized complete block design with four replicates. The results of analysis of variance carried out on
early morphological characters of C. argentea L. at 3, 4, and 5weeks after sowing showed significant
(p<0.05 /><0.01) effects except for number of leaves per plant and leaf width at 3 and 5 weeks after sowing,
respectively. The replicates in blocks produced varying observable effects on the genotypes while genotype x
replicate showed significant variation on morpho-agronomic and yield traits except number of days to flowering
at 50 days and fruit length at maturity. Also, from the result of the mean separation, it is shown that
NG/MAY/09/015 performed the best for plant height at flowering, leaf length at flowering, leaf width at
flowering, and root biomass. NG/SA/07/213 produced the highest mean values of number of flowers per plant,
leaf biomass and pod weight at maturity. The highest values of number of primary branches and fruit length at
maturity (FLM) were observed for NG/TO/MAY/09/015, while NG/AO/MAY/09/015 had the highest for pod
weight at maturity. The result of principal component axis also showed that Prin 1 accounted for highest Eigen
Vector of 38.62% from the total variation. NG/MAY/09/015 (R2) genotype produced the highest Eigen Vector
of 6.705 from Prin 1. The correlation result showed that plant height had a significant positive association with
seed weight at maturity, pod weight at maturity, number of primary branches and fruit length at maturity, while
similar association existed between leaf biomass, number of primary branches and pod weight at maturity, as
well as between plant height at flowering and pod weight at maturity. Again, the number of primary branches is
also positive and significantly correlated with plant height, root biomass and leaf length. Furthermore, the
results of dendrogram and minimum spanning tree revealed variations in genetic relatedness and distance,
respectively, which exist among the population of the C. argentea L.
Sixteen genotypes of maize were evaluated for genetic variability and character associations in the Research
Farm of the Department of Botany, University of Ibadan, Nigeria for 90 days in the 2012, 2013 and 2014
cropping seasons. Perforated polythene bags (18 × 9 cm) were filled with 6kg sandy-loam soil and were spaced
at a distance of 10 cm apart between rows. Three seeds from each genotype were then planted per bag without
treatment in three replicates. Data on plant and stem height, leaf width, leaf length and number of leaves were
collected after planting at 14 days interval on each replicate for a particular genotype. The plant height of
EVDT.Y200STRQPM genotype was significantly (p < 0.05) different from other genotypes, while genotype
pairs; TZE-OR2DTSTRQPM and 2009TZE-ORIDTSTRQPM, TZEI 22, TZEI 98 and OBANTAPA, TZEI 4,
TZEI 161, BODIJA as well as EVDT-W99STR, OJO, 98SYNWECSTRQPM were similar to each other. The
result of correlation coefficient shows that stem height was highly significant and positively correlated with the
plant height (p < 0.01; r = 0.91). The genotype is negative and non-correlated with plant height, stem height, leaf
width and number of leaves, but positive and non-significantly associated with leaf length, replicate and week
after planting.
The ethanol extracts of Ficus asperifolia, Mormordica charantia, Anacardium
occidentals and Psidium guajava were evaluated sole and in treatment combinations at 25, 50 and
75mg ml-1 concentration levels against the mycelial growth of Macrophomina phaseolina of
Cowpea. The pathogen was cultured on plates containing botanicals amended Potato Dextrose
Agar (PDA) in three replicates while only ethanol treated PDA tested plates served the control
experiment. The radial growths were recorded at 4th, 6th and 8th day after inoculation. Data
obtained were analysed using the SAS software program version 9.2. The extract of Mormordica
charantia was the most effective in the botanical treatments alone. The most significant inhibition
of Macrophomina phaseolina were observed from the combined treatments of Ficus asperifolia,
Mormordica charantia and Anacardium occidentals (3.11 cm), followed by Mormordica
charantia and Psidium guajava (3.29 cm), then combination of four extracts; Ficus asperifolia,
Mormordica charantia, Anacardium occidentals and Psidium guajava (3.53 cm), then
Mormordica charantia and Anacardium occidentals (3.84 cm). Other treatments, either alone or in
combination produced significant result compared to the control experiment (6.94 cm). However,
the efficacy of botanicals increased with concentration and also significantly correlated with time
and reduction in mycelia extension of the pathogen. More so, variability in the antifungicidal
potentials of the botanicals on Macrophomina phaseolina ranges from 15.93% to 34.06%
according to Eigen proportions. The treatment combinations of; Ficus asperifolia, Mormordica
charantia and Anacardium occidentals at 75mg ml-1 concentration level produced the most
inhibitory effect against Macrophomina phaseolina in vitro. However, the untreated plates did not
show inhibitory effect on the mycelial growth of the pathogen. Therefore, combined treatments of
botanicals could be a potential source in the practice of plant disease control.
Organic Plant Breeding: Achievements, Opportunities, and ChallengesSeeds
Organic plant breeding programs were founded in the 1980s-1990s to develop crop varieties suited to organic systems. Research has shown that the top-yielding varieties in organic systems do not correlate to those in conventional systems, demonstrating the need for organic breeding. Some successful organic breeding programs have developed weed-tolerant and disease-resistant varieties of crops like wheat, maize, barley and tomatoes. Traits important for organic systems include weed tolerance, nutrient use efficiency, and adaptation to nutrient dynamics. Participatory breeding programs have also improved crops suited for small-scale organic farmers. Overall, organic breeding aims to develop varieties adapted to organic conditions while respecting genetic diversity and plant integrity.
The term genetic pollution was popularized by environmentalist Jeremy Rifkin in his book “The Biotech
Century”(1998).Genetic pollution accounts to the uncontrolled spread of genetic information (frequently
referring to transgenes) into the genomes of organisms in which such genes are not present in nature.
Genetically engineered (GE) plants contains genes which have been transferred from unrelated species. These
may come from bacteria, viruses,other plants or even animals. If these ‘foreign’ gene are the n transferred into
other organisms,this causes genetic contamination or pollution of the natural genepool.
Genetic pollution is usually associated with the gene flow from a genetically engineered
(GE)organism(orgeneticallymodifiedorganism-GMO)toanon-GMorganism."Geneticpollution"andcollateral
damage from GE field crops already have begun to wreak environmental havoc. Wind, rain, birds,bees, and
insect pollinators have begun carrying genetically-altered pollen into adjoining fields, polluting the
DNAofcrops oforganicand non-GEfarmers’
DEFINITION
The dispersal of contaminated or altered genes from genetically engineered organism to natural
organism.
"Uncontrolled spread of genetic information (frequently referring to transgenes) into the genomes of
organisms in which such genes are not present in nature”
Gene flow
Gene flow is the movement of genes from one population to another, conferring new traits – the biophysical
characteristics of the organism – to individuals of the recipient population. This happens by cross-pollination
(also called hybridisation), that is, the pollination of members of one population or genetic pool with that of
another.
Transgene flow
Transgene flow is the loss of potentially useful crop genetic diversity in the recipient population (whether
other crops, landraces or wild relatives). Outbreeding depression (the reduction of fitness from hybridisation)
can lead to a decrease in allelic diversity by extinction of members of a diverse gene pool that are less adapted
to survive because of the particular introgressedtransgenic trait .
The pattern of field infestation by the flea beetles, Podagrica spp., was assessed in okra-kenaf intercrop system with a view to determining a cropping pattern that would assist in controlling the pest problem. Okra and kenaf were intercropped in row combinations of 1:1, 1:2, 2:1 and 2:2 while sole-cropped okra and kenaf served for comparison. Field sampling for flea beetles commenced three weeks after planting and it lasted till the 12th week, a period that extended to the postharvest stage of okra. There was a significant difference (P Ë‚ 0.01) between the population of the two Podagrica spp. (with P. uniforma being more abundant than P. sjostedti) and among the six planting patterns. The pest population also differed (P Ë‚ 0.05) between the two crops and among (P Ë‚ 0.001) the vegetative, reproductive and postharvest stages of okra. Sole kenaf had a significantly higher level of infestation by the flea beetles followed by sole okra and two rows of okra intercropped with one row of kenaf in descending order. All the other three intercrop patterns had a significantly lower infestation level. Kenaf attracted more flea beetles than okra at the vegetative stage while stumps of okra left in the field after harvesting was over sustained a significantly higher population of flea beetles. Obtained results showed that intercropping could be used, especially by poor rural farmers, as a pest control strategy against Podagrica spp. Due to the considerable population of flea beetles sustained by okra stumps, farmers should be encouraged to get rid of leftovers after harvesting as a way of further controlling Podagrica spp. The combination of intercropping and farm sanitation would assist in reducing reliance on synthetic chemical insecticides.
Evaluation of rice genotypes for resistance to the stalk-eyed fly (Diopsis lo...Innspub Net
Globally, rice production is limited by abiotic and biotic factors. Of the insect pests attacking rice, the stalk-eyed fly is the most abundant. Major rice growing districts in Uganda are affected, and varieties grown by farmers are susceptible. The objective of this study was to identify sources of resistance to stalk-eyed flies among improved rice genotypes in Uganda. Fifty genotypes from the Africa Rice Centre, IRRI, South Korea and the National Crops Resources Research Institute (NaCRRI) in Uganda were screened under cage and field conditions at NaCRRI. Trials were laid out in an alpha lattice design, with 3 replications, for both experiments. Natural infestation (D. longicornis or D. apicalis) was used in the field while cage trials utilized artificial infestation with D. longicornis. Data on deadhearts were collected from seedling to tillering stages, at 7, 14, 21 and 28 days. Analyses of variance were performed using restricted maximum likelihood. Infestation levels for 31 (62%) rice genotypes were the same under both field and cage conditions, 4 (8%) genotypes showed higher susceptibility in the cage than in the field and 15 (30%) were more resistant in the cage than in the field. Genotypes NERICA 4, TXD306, NM7-22-11-B-P-1-1 and K85 were identified as the most resistant varieties. F3 genotypes (GSR IR1- 5-S14-S2-Y1 x K85, Gigante x NERICA4, NERICA4 x Gigante, NERICA1x NERICA4, NERICA4 x NERICA6, and NERICA4 x SUPA) were also found resistant. These genotypes were recommended for release and further advancement, respectively.
This document summarizes a student's master's seminar presentation on stability for grain yield in little millet. It includes an introduction to little millet, its nutritional value and importance as a crop. It also discusses previous crop improvement efforts including varietal releases. It covers topics like genetic variability, heritability, genetic advance and stability analysis. It presents data on promising new germplasm lines. Finally, it summarizes one case study on genetic variability in little millet genotypes.
Aspects of the ecology of fruit flies in ugandaBrian Isabirye
Fruit flies cause about 40% fruit loss in Africa, and about 73% in Uganda. Design of IPM strategies for fruit flies requires knowledge of their biology. Was limited to Nakasinga, 2002; Nemeye, 2005; Okullokwany, 2006. It is not clear how: Diversity has been shaped by hosts, distribution and envital variability.
Highly cryptic and inter-intra-specific morphological variation (Clarke et al., 2005; Drew et al., 2008) among Bactrocera spp. turns out.
Will change in climate alter the suitability and distribution of species?
Development of drought tolerant maize cultivars is prerequisite to achieving stable grain yield in
drought–prone ecologies of Nigeria’s Guinea savanna. However, success has been limited mainly due
to lack of maize genotypes that show clear differences in response to well defined moisture deficit
condition. Two sets of drought tolerant (DT) maize germplasm were evaluated under screenhouse and
field conditions between 1999 and 2002. In the screenhouse study, performances of the genotypes
were compared under well-watered condition and moisture deficit imposed at different growth stages.
Under field conditions, the first set comprising 11 accessions along with a check were evaluated for 4
growing seasons while the second set which comprised 3 DT varieties were evaluated along with 2
check varieties using monthly plantings between April and August of 2001 and 2002, respectively. In
the first set, post anthesis moisture deficit significantly reduced grain yield by 25 to 73.5% in the open
pollinated varieties (OPVs) and by 20 to 64% in the hybrids. Grain yield under field conditions ranged
from 2.48 to 3.49, 2.82 to 3.73 and 3.58 to 4.76 tons/ha-1 for 1999, 2000 and 2001 full growing seasons,
respectively, and 2.03 to 2.50 tons/ha-1 for 2000 late growing season. In the second set, pre and post
anthesis moisture deficits reduced grain yield by 77.6 and 95.8%, respectively, of well watered
condition while in the field, grain yields in the genotypes were highest for plantings made in April and
July (1.90 - 2.5 t/ha), lowest for August (0.7 -1.8 t/ha) when moisture deficit coincided with
reproductive phase. Yield stability exhibited under moisture deficit and on the field by 8522-2, Oba
super 2 and AK9943-DMRSR in the first set as well as DT-SR-Y C0 and DT-SR-W C0 in the second set,
indicates their suitability either as cultivars per se or as potential source of DT alleles for
development of DT maize varieties for Nigeria’s savanna ecologies.
This document discusses post-harvest technology development of mushrooms in Kathmandu Valley, Nepal. It begins with background on mushroom production globally and in Nepal. It then discusses the problems with high post-harvest losses for mushrooms due to their perishable nature. The purpose of the project is to establish a cold storage facility and processing unit to enable short and long-term storage and marketing of mushrooms year-round. This will help address issues of food security and generate income. The objectives are to develop post-harvest technologies for mushrooms and promote mushroom farming and business in Kathmandu Valley.
The use of plants extracts in the improvement of cowpea yield at dang (Ngaoun...Innspub Net
In the substitution of chemical insecticides with potential biopesticides, the efficiency of Lippia multiflora, Plectranthus glandulosus and Callistemon rigidus were evaluated on the improvement of cowpea (Vinia unguiculata) in Dang (Ngaoundere, Cameroon). The experiment was conducted in a completely randomized block design with 5 treatments repeated 4 times each: the negative control, the positive control (Decis), L. multiflora, P. glandulosus and C. rigidus. These different insecticides were sprayed on cowpea plants with 14 days interval starting from the 14th day after sowing. The parameters collected were the diversity of insect pests, the number of pods, and the dry weight of the grains. All of the insecticides used improved cowpea yields. Although less efficient than Decis, most biopesticides significantly (p < 0.001) improved the yield of cowpeas compared to the negative control. This improvement was 260% for C. rigidus, and 120% for P. glandulosus. These results suggest that C. rigidus, P. glandulosus and L. multiflora could be considered as potential substitutes for chemical insecticides in improving cowpea yields.
Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth Ama...ijtsrd
Four cowpea varieties Oloyin, Drum, Zobo and White Mallam , and four levels of nitrogen fertilizer 20, 40, 60 and 80 kg N ha were applied at 2 weeks after planting WAP to the vegetable Amaranth between October 2018 to April 2019. The cowpea green manure was incorporated into soil 6 WAP and left for a week to decompose before planting the vegetable Amaranth. Growth of cowpea varieties used as green manure in 2018 showed no significant difference. However, in 2019 the canopy height and fresh weight at 3 WAP were significantly p 0.05 different among cowpea varieties. The canopy height of Oloyin, Drum and White Mallam were similar but significantly p 0.05 higher than that of Zobo variety. Similarly, application of 60 and 80 kg N ha significantly produced more yield relative to 0 and 40 kg N ha of inorganic fertilizer rates. Generally, higher significant yield p 0.05 was recorded in the second cycle of planting. This study concluded that green manure from Oloyin produced yield of Amaranth us 11.0 47.3 t ha which was similar to the yield obtained from 80 kg N ha 12.13 37.7t ha . Adeniji Azeez Adewale | Kumoye Deborah Etooluwa "Effects of Incorporated Green Manure and Inorganic Fertilizer on Amaranth (Amaranthus Caudatus. L) Vegetable" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, URL: https://www.ijtsrd.com/papers/ijtsrd33676.pdf Paper Url: https://www.ijtsrd.com/biological-science/zoology/33676/effects-of-incorporated-green-manure-and-inorganic-fertilizer-on-amaranth-amaranthus-caudatus-l-vegetable/adeniji-azeez-adewale
Nodulation, Growth and Yield Response of Five Cowpea (Vigna unguiculata L. Wa...Premier Publishers
The experiment was carried out in the screen house of the Department of Crop, Soil & Pest Management, Federal University of Technology, Akure, Nigeria. The experimental layout was a 5 x 3 x 2 factorial combination with 3 replications given a total of 90 treatments. Seeds of five cowpea varieties namely: IT98K-205-8, Ife Brown, Oloyin Brown, IT98K-573-2-1 and IT96D-610 were sown in Plastic buckets of 7-liter capacity and were perforated at the bottom to allow for drainage and filled with top soil. Watering regimes of (500ml, 700ml and 900ml) were imposed and water was applied twice a week while cowpea plants were inoculated with 5g each of Rhizobia strain (Mesorhizobia loti) at seedling stage. Control set was maintained without inoculation. The effect of watering regimes on legume species was significant on nodulation, growth and yield characters of cowpea varieties evaluated. The results revealed marked varietal differences in plant growth, nodulation, yield and yield components. IT98K-573-2-1 and Oloyin Brown generally expressed superior performance in most measured parameters. Mesorhizobia inoculation significantly (p≤0.05) increased plant growth, nodulation, yield and yield components of cowpea. The interaction effect of variety, Mesorhizobia loti and watering regimes caused significant variations in the number of nodules, leaf area, number of seeds/pod and seed yield. The nitrogen and crude protein content in the leaf differed among the cowpea varieties evaluated. Application of mesorhizobium strain significantly increased seed yield of cowpea and caused substantial increase in nodulation and this subsequently affected the Nitrogen fixation potential of cowpea under varying soil moisture regimes.
Types and Percentations of Parasitization Egg Parasitoids Spodoptera frugiper...AI Publications
This document summarizes a study on egg parasitoids of the fall armyworm Spodoptera frugiperda in North Sulawesi, Indonesia. The study identified two types of parasitoids - Telenomus sp. and Trichogramma sp. - through inventory and examination of S. frugiperda egg groups from different regions. Telenomus sp. had a higher presence than Trichogramma sp. across sampling areas. The percentage of parasitization was highest in Manado City at 85% and lowest in Bolaang Mongondow Regency at 5%.
This study investigated the effects of gamma rays and ethyl methane sulphonate (EMS) mutagens on inducing genetic variability in two soybean varieties (PKV-1 and JS-335) for quantitative traits in the M3 generation. The results showed that all mutagenic treatments increased the genotypic and phenotypic coefficient of variation, heritability, and genetic advance for traits like plant height, number of branches, clusters, pods, yield, and 100 grain weight compared to untreated controls. Higher doses of gamma rays (30kR) and EMS concentrations (0.15%) generally induced the most genetic variability. The study concluded that the mutagenic treatments were effective in creating sufficient genetic variability for further selection and
The use of plants extracts in the improvement of cowpea yield at dang (Ngaoun...Innspub Net
In the substitution of chemical insecticides with potential biopesticides, the efficiency of Lippia multiflora, Plectranthus glandulosus and Callistemon rigidus were evaluated on the improvement of cowpea (Vinia unguiculata) in Dang (Ngaoundere, Cameroon). The experiment was conducted in a completely randomized block design with 5 treatments repeated 4 times each: the negative control, the positive control (Decis), L. multiflora, P. glandulosus and C. rigidus. These different insecticides were sprayed on cowpea plants with 14 days interval starting from the 14th day after sowing. The parameters collected were the diversity of insect pests, the number of pods, and the dry weight of the grains. All of the insecticides used improved cowpea yields. Although less efficient than Decis, most biopesticides significantly (p < 0.001) improved the yield of cowpeas compared to the negative control. This improvement was 260% for C. rigidus, and 120% for P. glandulosus. These results suggest that C. rigidus, P. glandulosus and L. multiflora could be considered as potential substitutes for chemical insecticides in improving cowpea yields.
Indirect selection for resistance to Alectra vogelii (benth) infestation in c...IJEAB
Alectra vogelii (benth) is a parasitic weed which causes significant yield reductions in cowpeas (VignaunguiculataWalp) in most of the sub-Saharan African countries. The objective of this study was to establish the effect of Alectra vogelii infestation on yield components of cowpea and the prospects of utilizing these components for indirect select to A. vogelii in resistance breeding. Seven genotypes of cowpea were crossed in all possible combinations without reciprocals and their 21 F2 progeny including parents were evaluated for reaction to Alectra vogelii infection at two locations, Ilonga and Hombolo. The experiments were laid using a Randomized Complete Block Design with three replications. Significant (P < 0.001) genotypic responses to Alectra emergency and infestation were found. A significance negative correlation was found between the Alectra emergency and infestation to yield and yield components (P< 0.01 and P< 0.001). However, both yield components (Number of pods per plant and 100 seed weight) tested exhibited a weak r2 value (< 0.25) implying that these components can only be used to supplement and not as a substitute to direct selection in breeding for resistance to A. vogelii.
IRJET-Plant Regeneration by Somatic Embryogenesis in Azadirachta Indica A.Jus...IRJET Journal
1) The study investigated somatic embryogenesis in neem (Azadirachta indica) as a potential method for high rate propagation.
2) Leaf and stem explants cultured on MS medium supplemented with growth regulators like BA and 2,4-D formed callus, with 0.5 mg/L BA stimulating earlier callus formation.
3) Only BA induced somatic embryo formation from the callus, with 0.5 mg/L BA responding faster than 1.0 mg/L BA. The highest number of somatic embryos formed was 180 from stem explants on 1.0 mg/L BA.
Mutation Induction for Improvement of Banana (Musa Spp). "Berangan Cv. Intan-...paperpublications3
Abstract: In vitro mutation induction by using gamma ray at 20, 30, 40 and 60Gy was used to generate variability in triploid banana "Berangan cv. Intan (AAA), so as to provide the opportunity to select plants with desirable characters such as early fruiting and short stature. Mutation frequency increased with increased dosage whereas, survival and capacity to regenerate decreased with increased doses. Time to initiation varied from 4-8 weeks for gamma-irradiated materials compared to 2-3 weeks in the control. It appeared that the higher the dose, the longer it took for shoot initiation. The exposure of shoot-tip meristem pieces to radiation doses produced wide variation in growth and morphogenetic performance. Mutagenic treatments induced 2 to 3- fold increases in variability in both quantitative and qualitative traits at different stages, in vitro; at nursery and field. For the field-grown plants; the proportion varied from 2.9% for the control plants to 16.8% for 60 Gy and 20.1% for 40 Gy-treatments, while for treatments at 20 and 30 Gy variations was at 18% and 19.2%, respectively. The frequency of variants was highest in 40 Gy followed by 30 Gy and 20 Gy, while it was very low in 60 Gy except for plant stature (dwarfism or stunted growth). Earliness to flowering variants were recorded at 20, 30 and 40 Gy at low frequencies (0.6%, 0.7% and 1.7%) respectively, while none was observed for 60 Gy treatments. As in vitro mutation induction could create genetic variability as well as many undesirable variants, it is highly desirable to integrate in vitro mutation with a selection system that can screen for large mutagen treated population. The useful variants recorded for earliness to flowering were selected for 30 and 40 Gy treatments. 40 Gy showed high frequency in earliness as compared with 20 and 30 Gy., which came to flowering as early as 6 – 6.5 months compared to 7-8 months for control. The useful dwarf, which considered as desirable traits, showed a balance of height and girth.
Mutation Induction for Improvement of Banana (Musa Spp.) Berangan Cv. Intan-AAApaperpublications3
Abstract: In vitro mutation induction by using gamma ray at 20, 30, 40 and 60Gy was used to generate variability in triploid banana "Berangan cv. Intan (AAA), so as to provide the opportunity to select plants with desirable characters such as early fruiting and short stature. Mutation frequency increased with increased dosage whereas, survival and capacity to regenerate decreased with increased doses. Time to initiation varied from 4-8 weeks for gamma-irradiated materials compared to 2-3 weeks in the control. It appeared that the higher the dose, the longer it took for shoot initiation. The exposure of shoot-tip meristem pieces to radiation doses produced wide variation in growth and morphogenetic performance. Mutagenic treatments induced 2 to 3- fold increases in variability in both quantitative and qualitative traits at different stages, in vitro; at nursery and field. For the field-grown plants; the proportion varied from 2.9% for the control plants to 16.8% for 60 Gy and 20.1% for 40 Gy-treatments, while for treatments at 20 and 30 Gy variations was at 18% and 19.2%, respectively. The frequency of variants was highest in 40 Gy followed by 30 Gy and 20 Gy, while it was very low in 60 Gy except for plant stature (dwarfism or stunted growth). Earliness to flowering variants were recorded at 20, 30 and 40 Gy at low frequencies (0.6%, 0.7% and 1.7%) respectively, while none was observed for 60 Gy treatments. As in vitro mutation induction could create genetic variability as well as many undesirable variants, it is highly desirable to integrate in vitro mutation with a selection system that can screen for large mutagen treated population. The useful variants recorded for earliness to flowering were selected for 30 and 40 Gy treatments. 40 Gy showed high frequency in earliness as compared with 20 and 30 Gy., which came to flowering as early as 6 – 6.5 months compared to 7-8 months for control. The useful dwarf, which considered as desirable traits, showed a balance of height and girth.
Applications Of Radioisotopes In AgricultureDaniel Wachtel
This document discusses the various applications of radioisotopes in agriculture. It describes how radioisotopes are used to study plant nutrition and fertilizer uptake, manage insect pests through techniques like sterile insect technique, and improve crops through induced mutation. Radioisotopes are also used to process and preserve foods, extending shelf life and reducing post-harvest losses. International organizations like IAEA and FAO support research on using nuclear techniques to boost agricultural productivity in a sustainable manner.
Genetic Variability, Heritability for Late leaf Spot tolerance and Productivi...IOSR Journals
This document summarizes a study on genetic variability, heritability, and traits related to late leaf spot tolerance and productivity in a recombinant inbred line population of groundnut. The study evaluated 106 recombinant inbred lines plus parental lines. High genetic variation was observed for traits related to late leaf spot score, yield, and other components. High heritability and genetic advance were found for traits like late leaf spot score, 100-seed weight, and haulm weight per plant, indicating these are controlled by additive genes and good for selection. Several lines were identified with improved late leaf spot tolerance, early maturity, yield, and other traits.
Cold Plasma Technique in Controlling Contamination and Improving the Physiolo...J. Agricultural Machinery
Today, almost half of the total human food, especially in Asia, is directly supplied from grains, and nearly 70% of the cultivated area of the world, which is one billion hectares, is used for growing grains. Therefore, non-destructive methods must be found and developed to increase seed quality in agriculture and industry. Cold plasma is a novel and efficient method that can be used in the agricultural and food sectors for the inactivation of surface microorganisms and the excitation of seeds. This review presents a summary of the effectiveness of cold plasma treatment on the characteristics of four important cereal plants: wheat, rice, corn, and barley. The focus is on the effects of this treatment on seed germination, surface property changes, water uptake of seeds, growth parameters of root, shoot, and seedling length, biomass parameters, and metabolic activities. By examining the research conducted by the researchers, it can be seen that the cereal seeds treated with cold plasma had better germination power, water absorption, shoot length, growth efficiency, shoot and root weight, and metabolic activity. This review can provide insight into the promising trends in utilizing plasma as a method to decrease the prevalence of harmful plant diseases transmitted through seeds and reduce the dormancy of hard seeds.
5. Phenotyping of lentil genotypes for drought tolerance using polyethylene g...MDMAHMUDALNOOR
This study evaluated the response of 7 lentil genotypes to drought stress induced by different concentrations of polyethylene glycol 6000 (PEG-6000). Seeds were exposed to 0%, 10%, 15%, and 20% PEG solutions to assess germination rates and the effects on seedling and plant growth over time. Various growth and yield parameters were measured. Results showed that all parameters decreased with increasing drought stress levels for all genotypes. However, at the highest 20% PEG level, genotype LG-208 performed better for all traits compared to the other genotypes, indicating it has greater drought tolerance and may be suitable for cultivation in drought-prone areas.
8 ijhaf oct-2017-10-influence of nitrogen fixingAI Publications
This document summarizes a study that investigated the effects of inoculating fenugreek plants with nitrogen-fixing and phosphorus-solubilizing bacteria, alone and in combination, on plant growth and yield. Key findings include:
1) Inoculation with nitrogen-fixing and phosphorus-solubilizing bacteria increased nodulation, nodule weight, root and shoot growth, and pod number compared to the uninoculated control.
2) Co-inoculation with both bacteria further increased root and shoot growth and significantly increased fenugreek seed yield compared to the control or single inoculations.
3) Inoculation improved plant nutrient uptake and growth, demonstrating the potential of biofer
Evaluation of four cowpea lines for bruchid (callosobruchus maculatus) toleranceAlexander Decker
This document summarizes a study that evaluated the tolerance of four cowpea lines to infestation by the bruchid beetle (Callosobruchus maculatus). The lines were exposed to bruchids for three days, and data on seed damage, weight loss, and emerged insects was collected over 37 days. Results showed the most susceptible line was TVx 3236, with the highest seed damage, weight loss, and emerged insects. IT81D-994 showed moderate tolerance. Though reported as resistant in previous studies, IT99K-494-6 and IT84S-2246-4 were susceptible in this study. Periodic re-evaluation is needed to assess stability of resistance in released
This document discusses in-vitro androgenesis in rice. It provides background on rice production and genetics. Rice anther culture is described as a two-step process of callus induction and plant regeneration. Factors affecting rice androgenesis include genotype, donor plant physiology, anther development stage, pretreatment, culture medium, and growth regulators. Applications of doubled haploids in rice include shortening breeding cycles and fixing traits. Challenges include low response rates and albinism in regenerated plants.
Phenotypic Correlation and Heritability Estimates of some Quantitative Charac...Premier Publishers
This study evaluated 16 advanced rice varieties under different nitrogen fertilizer levels to determine phenotypic correlations and heritability estimates of quantitative traits. Field experiments were conducted in Malaysia over two seasons. Data was collected on plant height, tillers per hill, panicles per hill, filled grains per panicle, and unfilled grains per panicle. Significant variation was observed among genotypes and in response to nitrogen levels for most traits. High phenotypic and genotypic coefficient of variation, heritability, genetic advance, and positive correlations between yield components indicated the influence of traits like tonnes per hectare, grain weight per plot, and kilograms per plot on yield. High heritability estimates suggested additive gene effects were more important than environmental effects
This document discusses a study on the effects of induced mutations through physical and chemical mutagens on yield and other traits in French bean (Phaseolus vulgaris L.). Mutations were induced using gamma irradiation at doses from 5-40kR and chemical mutagen ethyl methane sulphonate at concentrations from 0.1-0.3%. Observations were recorded on the parental variety, M2 generation, and M3 generation for traits like flowering time, pod yield, pod length, plant height, and seeds per pod. Genetic component analysis found both additive and dominance gene effects were induced, with overdominance observed for most traits, suggesting selection should be deferred to later generations. The study estimated genetic components like additive,
Evaluation of Soya Bean Varieties at Moisture Stress of Eastern Harerghe Zone...CrimsonpublishersMCDA
Soya bean is a multi-purpose crop. The area of production for soybeans is expected to increase due raised demand of domestic processing industries and boosted demand for use in animal feed. This experiment were conducted with the objective of identify superior genotypes in terms of yield, insect pest & disease tolerance/resistance and with desirable agronomic traits for the last two years of (2014 & 2015). Analysis of variance showed that there were significant difference among the varieties in terms of disease reaction, grain yield and yield related attributes. Korme, Ethio-eugoslavia and Didesa provided about 32.67%, 29.11%, 22.55%, yield advantages over the standard check (Clark), respectively. Therefore, the three high yielding varieties (Korme, Ethio-eugoslavia, and Didesa) were selected and recommended for further production at Fedis and similar agro-ecologies.
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Ultraviolet (UV) light has strong genotoxic effect to induce mutations for developing high genetic variability in yields, early maturity and other characters in crops. The study investigated the mutagenic effects of UV radiation on growth, yield, agronomic and mutation tolerance of six maize cultivars. Maize seeds were exposed to UV radiation, and planted in 7 kg soils in the polythene bags, while unexposed served as control. The effect of UV radiation on the first order interaction between weeks after planting (WAP) and treatments was only significant (p<0.05) height="true"><0.05)><0.05)><0.05)><0.01) with leaf length, leaf width and number of leaves with r = 0.95, 0.96, 0.89 respectively. Only the periods of exposure of the UV radiation was positive and strongly correlated with leaf width (r = 0.79). The association between the stover weight and periods of exposure was positive and insignificant, while the correlation between total numbers of grains and grain weight per stand was positive and strong (r = 0.99). Therefore, quality protein maize cultivars should be improved by introgression of favourable genes of drought tolerance, grain yield and related characters through induced mutation of UV radiation.
Similar to Radiosensitivity and Seedling Growth of Several Genotypes of Paddy Rice Mutants Irradiated with Gamma Rays at Different Doses (20)
The Statutory Interpretation of Renewable Energy Based on Syllogism of Britis...AI Publications
The current production for energy consumption generates harmful impacts of carbon dioxide to the environment causing instability to sustainable development goals. The constitutional reforms of British Government serve to be an important means of resolving any encountered incompatibilities to political environment. This study aims to evaluate green economy using developed equation for renewable energy towards political polarization of corporate governance. The Kano Model Assessment is used to measure the equivalency of 1970 Patents Act to UK Intellectual Property tabulating the criteria for the fulfillment of sustainable development goals in respect to the environment, artificial intelligence, and dynamic dichotomy of administrative agencies and presidential restriction, as statutory interpretation development to renewable energy. The constitutional forms of British government satisfy the sustainable development goals needed to fight climate change, advocate healthy ecosystem, promote leadership of magnates, and delegate responsibilities towards green economy. The presidential partisanship must be observed to delineate parties of concerns and execute the government prescriptions in equivalence to the dichotomous relationship of technology and the environment in fulfilling the rights and privileges of all citizens. Hence, the political elites can execute corporate governance towards sustainable development of renewable energy promoting environmental parks and zero emission target of carbon dioxide discharges. The economic theory developed in statutory interpretation for renewable energy serves as a tool to reduce detrimental impacts of carbon dioxide to the environment, mitigate climate change, and produce artefacts of bioenergy and artificial intelligence promoting sustainable development. It is suggested to explore other vulnerabilities of artificial intelligence to prosper economic success.
Enhancement of Aqueous Solubility of Piroxicam Using Solvent Deposition SystemAI Publications
Piroxicam is a non-steroidal anti-inflammatory drug that is characterized by low solubility-high permeability. The present study was designed to improve the dissolution rate of piroxicam at the physiological pH's through its increased solubility by using solvent deposition system.
Analysis of Value Chain of Cow Milk: The Case of Itang Special Woreda, Gambel...AI Publications
Ethiopia has a long and rich history of dairy farming, which was mostly carried out by small and marginal farmers who raised cattle, camels, goats, and sheep, among other species, for milk. Finding the Itang Special Woreda cow milk value chain is the study's main goal. In order to gather primary data, 204 smallholder dairy farmer households were randomly selected, and the market concentration ratio was calculated using 20 traders. Descriptive statistics, econometric models, and rank analysis were used to achieve the above specified goals. Out of all the participants in the milk value chain, producers, cafés, hotels, and dairy cooperatives had the largest gross marketing margins, accounting for 100% of the consumer price in channels I and II, 55% in channels III and V, and 25.5% in channels V. The number of children under five, the number of milking cows owned, the amount of money from non-dairy sources, the frequency of extension service contacts, the amount of milk produced each day, and the availability of market information were found to have an impact on smallholders' involvement in the milk market. Numerous obstacles also limited the amount of milk produced and marketed. The poll claims that general health issues, sickness, predators, and a lack of veterinary care are plaguing farmers. In order to address the issue of milk perishability, the researchers recommended the host community and organization to construct an agro milk processor, renovate the dairy cooperative in the study region, and restructure the current conventional marketing to lower the transaction and cost of milk marketing.
Minds and Machines: Impact of Emotional Intelligence on Investment Decisions ...AI Publications
In the evolving landscape of financial decision-making, this study delves into the intricate relationships among Emotional Intelligence (EI), Artificial Intelligence (AI), and Investment Decisions (ID). By scrutinizing the direct influence of human emotional intelligence on investment choices and elucidating the mediating role of AI in this process, our research seeks to unravel the complex interplay between minds and machines. Through empirical analysis, we reveal that EI not only directly impacts ID but also exerts its influence indirectly through AI-mediated pathways. The findings underscore the pivotal role of emotional awareness in investor decision-making, augmented by the technological capabilities of AI. It suggests that most investors are influenced by the identified emotional intelligence when making investment decisions. Furthermore, AI substantially impacts investors' decision-making process when it comes to investing; nevertheless, AI partially mediates the relationship between emotional intelligence and investment decisions. This nuanced understanding provides valuable insights for financial practitioners, policymakers, and researchers, emphasizing the need for holistic strategies that integrate emotional and technological dimensions in navigating the intricacies of modern investment landscapes. As the synergy between human intuition and artificial intelligence becomes increasingly integral to financial decision-making, this study contributes to the ongoing discourse on the symbiotic relationship between minds and machines in investments.0
Bronchopulmonary cancers are common cancers with a poor prognosis. It is the leading cause of death by cancer in Algeria and in the world. Behind this unfavorable prognosis hides numerous disparities according to age, sex, and exposure to risk factors, ranking 4th among incident cancers and developing countries including Algeria, all sexes combined. It ranks 2nd cancers in men and 3rd among women. Whatever the age observed, the incidence of this cancer is higher in men than in women, however the gap is narrowing to the detriment of the latter. The results of scientific research agree to relate trends in incidence and mortality rates to tobacco consumption, including passive smoking. Furthermore, other risk factors are mentioned such as exposure to asbestos in the workplace or to radon for the general population, or even genetic predisposition. However, the weight of these etiological and/or predisposing factors is in no way comparable to that of tobacco in the genesis of lung cancer and the resulting mortality. We provide a literature review in our article on the descriptive and analytical epidemiology of lung cancer.
Further analysis on Organic agriculture and organic farming in case of Thaila...AI Publications
The objective of this paper is to present Further analysis on Organic agriculture and organic farming in case of Thailand agriculture and enhancing farmer productivity. In view of the demand for organic fertilizers, efforts should also be made to enhance and to develop more effective of compost, bio-fertilizer, and bio-pesticides currently used by farmers. Likewise, emphasis should also be laid on the cultivation of legumes and other crops that can enhance the fertility of the soil, as practiced by farmers in many developing countries to fertilize their lands. On the other hand, most of the farmers who practice this farm system found that they are adopting a number of SLMs and interested in joining the meeting or training to gain more and more knowledge.
Current Changes in the Role of Agriculture and Agri-Farming Structures in Tha...AI Publications
The objective os this study is to present Current Changes in the Role of Agriculture and Agri-Farming Structures in Thailand and Vietnam with SLM practices. Farmer’s adoption and investment in SLM is a key for controlling land degradation, enhancing the well-being of society, and ensuring the optimal use of land resources for the benefit of present and future generations (World Bank, 2006; FAO, 2018). And agriculture remains an essential element of lives of many farmers in term of the strong cultural and symbolic values that attach current working generation to do and to spend time for it but not intern of income generating.
Growth, Yield and Economic Advantage of Onion (Allium cepa L.) Varieties in R...AI Publications
Haphazard and low soil fertility, low yielding verities and poor agronomic practices are among the major factors constraining onion production in the central rift valley of Ethiopia. Therefore, a field experiment was conducted in East Showa Zone of Adami Tulu Jido Combolcha district in central rift valley areas at ziway from October 2021 to April 2022 to identify appropriate rate of NPSB fertilizer and planting pattern of onion varieties. The experiment was laid out in split plot design of factorial arrangement in three replications. The main effect of NPSB blended fertilizer rates and varieties (red coach and red king) significantly (p<0.01) influenced plant height, leaf length, leaf diameter, leaf number and fresh leaf weight, shoot dry matter per plant, and harvest index. Total dry biomass, bulb diameter, neck diameter, average fresh bulb weight, bulb dry matter, marketable bulb yield, and total bulb yield were significantly (p<0.01) influenced only by the main effect of NPSB blended fertilizer rates. In addition, unmarketable bulb yield was statistically significantly affected (p≥0.05) by the blended fertilizer rates and planting pattern. Moreover, days to 90% maturity of onion was affected by the main factor of NPSB fertilizer rate, variety and planting pattern. The non-fertilized plants in the control treatment were inferior in all parameters except unmarketable bulb yield and harvest index. Significantly higher marketable bulb yield (41 t ha-1) and total bulb yield (41.33 t ha-1) was recorded from 300 kg ha-1 NPSB blended fertilizer rate applied. Double row planting method and hybrid red coach onion variety had also gave higher growth and yields. The study revealed that the highest net benefit of Birr, 878,894 with lest cost of Birr 148,006 by the combinations of 150 kg blended NPSB ha-1 with double row planting method (40cm*20cm*7cm) and red coach variety which can be recommendable for higher marketable bulb yield and economic return of hybrid onion for small scale farmers in the study area. Also, for resource full producers (investors), highest net benefit of Birr 1,205,372 with higher cost (159,628 Birr) by application of 300 kg NPSB ha-1 is recommended as a second option. However, the research should be replicated both in season and areas to more verify the recommendations.
Evaluation of In-vitro neuroprotective effect of Ethanolic extract of Canariu...AI Publications
The ethanolic extract of canarium solomonense leaves (ecsl) was studied for its neuroprotective activity. The neuroprotective activity of ECSL was found to have a significant impact on neuronal cell death triggered by hydrogen peroxide (MTT assay) in human SH-SY5Y neuroblastoma cells. Scopolamine, a muscarinic receptor blocker, is frequently used to induce cognitive impairment in laboratory animals. Injections of scopolamine influence multiple cognitive functions, including motor function, short-term memory, and attention. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, memory enhancing activity in scopolamine-induced amnesic rats was evaluated. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, ECSL was found to have a substantial effect on the memory of scopolamine- induced amnesic rats. Our experimental data indicated that ECSL can reverse scopolamine induced amnesia and assist with memory issues.
The goal of neuroprotection is to shield neurons against damage, whether that damage is caused by environmental factors, pathogens, or neurodegenerative illnesses. Inhibiting protein-based deposit buildup, oxidative stress, and neuroinflammation, as well as rectifying abnormalities of neurotransmitters like dopamine and acetylcholine, are some of the ways in which medicinal herbs have neuroprotective effects [1-3]. This review will focus on the ways in which medicinal herbs may protect neurons.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
The genus Canarium L. consists of 75 species of aromatic trees which are found in the rainforests of tropical Asia, Africa and the Pacific. The medicinal uses, botany, chemical constituents and pharmacological activities are now reviewed. Various compounds are tabulated according to their classes their structures are given. Traditionally canarium solomonense have been used to treat a broad array of illnesses. Pharmacological actions for canarium solomonense as discussed in this review include antibacterial, antimicrobial, antioxidant, anti-inflammatory, hepatoprotective and antitumor activity.
Influences of Digital Marketing in the Buying Decisions of College Students i...AI Publications
This research investigates the influence of digital marketing channels on purchasing decisions among college students in Ramanathapuram District. The study highlights that social media marketing, online advertising, and mobile marketing exhibit substantial positive effects on purchase decisions. However, email marketing's impact appears to be more complex. Moreover, the study explores how demographic variables like gender and academic level shape these effects. Notably, freshman students display varying susceptibility to specific digital marketing messages compared to their junior, senior, or graduate counterparts. These findings offer crucial insights for marketers aiming to tailor their strategies effectively to the preferences and behaviors of college students. By understanding the differential impacts of various digital marketing channels and considering demographic nuances, marketers can refine their approaches, optimize engagement, and ultimately enhance the effectiveness of their campaigns in targeting this demographic.
A Study on Performance of the Karnataka State Cooperative Agriculture & Rural...AI Publications
The Karnataka State Co-operative Agriculture and Rural Development Bank Limited is the apex bank of all the primary co-operative agriculture and rural development banks in the state. All the PCARD Banks in the state are affiliated to it. The KSCARD Bank provides financial accommodation to the PCARD Banks for their lending operations. In order to quick sanction and disbursement of loans and supervision over the PCARD Banks the KSCARD Bank has opened district level branches. Bank has established Women Development Cell to promote entrepreneurship among women in 2005. The Bank is identifying women borrowers in the rural areas by assigning suitable projects to motivate their self-confidence to lead independent life. Progress made in financing women entrepreneurs women.
Breast hamartoma is a rare, well-circumscribed, benign lesion made up of a variable quantity of glandular, adipose and fibrous tissue. This is a lesion that can affect women at any age from puberty. With the increasingly frequent use of imaging methods such as mammography and ultrasound as well as breast biopsy, cases of hamartoma diagnosed are increasing. The diagnosis of these lesions is made by mammography. The histological and radiological aspects are variable and depend on its adipose tissue content. The identification of these lesions is important in order to avoid surgical excisions. We report radio-clinical and pathological records of breast hamartoma.
A retrospective study on ovarian cancer with a median follow-up of 36 months ...AI Publications
Ovarian cancer is relatively common but serious and has a poor prognosis. The aim of this study is to highlight the epidemiological, diagnostic, therapeutic and evolutionary aspects of this malignant pathology managed at the Bejaia university hospital center. This is a retrospective and descriptive study over a period of 3 years (2019 - 2022) carried out on 20 patients who developed ovarian cancer. The average age of the patients was 50 years old, 53.23% of whom were over 45 years old. The CA-125 blood test was positive in 18 out of 20 patients. The tumors were discovered on ultrasound in 87.10% of cases and at laparotomy in 12.90%. Total hysterectomy with bilateral adnexectomy was the most performed procedure (64.52%). The early postoperative course was simple. 15 patients underwent second look surgery (16.13%) for locoregional recurrences. Epithelial tumors were the most frequent histological type (93.55%), including 79% in the advanced stage ( IIIc -IV) and 21% in the early stage (Ia- Ib ). Adjuvant chemotherapy was administered in 80% of patients. With a median follow-up of 36 months, 2 patients were lost to follow-up. The evolution was favorable in 27.42% and in 25.81% deaths occurred late postoperatively. Ovarian cancer is not common but serious given the advanced stages and the high rate of late postoperative deaths which were largely observed in patients deprived of adequate neoadjuvant or adjuvant chemotherapy.
More analysis on environment protection and sustainable agriculture - A case ...AI Publications
This study presents a case of tea and coffee crops , esp. environment protection and sustainable agriculture in Son La and Thai Nguyen of Vietnam. Research results show us that The process of having an agricultural product goes through many steps such as planting, planning, harvesting, packing, transporting, storing and distributing. - The State adopts policies to encourage innovation of agricultural production models and methods towards sustainability, adapting to climate change, saving water, and limiting the use of inorganic fertilizers and pesticides. chemicals and products for environmental treatment in agriculture; develop environmentally friendly agricultural models. Our research limitation is that we can expand for other crops, industries and markets as well.
Assessment of Growth and Yield Performance of Twelve Different Rice Varieties...AI Publications
The present investigation entitled “Assessment of growth and yield performance of twelve different rice varieties under north Konkan coastal zone of Maharashtra” was carried out during the kharif season of the year 2021 and 2022 on the field of ASPEE, Agricultural Research and Development Foundation, Tansa Farm, At Nare, Taluka Wada, District Palghar, Maharashtra, India. The experiment was laid out in Randomized Block Design (RBD). The twelve varieties namely Zini, Jaya, Dandi, Rahghudya, Govindbhog, Dangi, Gurjari, VNR-7, VNR-8, VNR-9, Karjat-3, and Karjat-5 were replicated thrice. The plant height (cm), number of tillers per plant, number of panicles per plant, number of panicles (m²), and length of panicle (cm) were noted to the maximum with cv. “VNR-7”. The highest number of seeds per panicle, test weight (gm), grain yield (q/ha), and straw yield (q/ha) were recorded with the cv. “VNR-7”. While the lowest number of days to 50% flowering was also recorded with cv. “VNR-7” during the year 2021 and 2022.
Cultivating Proactive Cybersecurity Culture among IT Professional to Combat E...AI Publications
In the current digital landscape, cybercriminals continually evolve their techniques to execute successful attacks on businesses, thus posing a great challenge to information technology (IT) professionals. While traditional cybersecurity approaches like layered defense and reactive security have helped IT professionals cope with traditional threats, they are ineffective in dealing with evolving cyberattacks. This paper focuses on the need for a proactive cybersecurity culture among IT professionals to enable them combat evolving threats. The paper emphasis that building a proactive security approach and culture can help among IT professionals anticipate, identify, and mitigate latent threats prior to them exploiting existing vulnerabilities. This paper also points out that as IT professionals use reactive security when dealing with traditional attacks, they can use it collaboratively with proactive security to effectively protect their networks, data, and systems and avoid heavy costs of dealing with cyberattack’s aftermaths and business recovery.
The Impacts of Viral Hepatitis on Liver Enzymes and BilrubinAI Publications
Viral hepatitis is an infection that causes liver inflammation and damage. Several different viruses cause hepatitis, including hepatitis A, B, C, D, and E. The hepatitis A and E viruses typically cause acute infections. The hepatitis B, C, and D viruses can cause acute and chronic infections. Hepatitis A causes only acute infection and typically gets better without treatment after a few weeks. The hepatitis A virus spreads through contact with an infected person’s stool. Protection by getting the hepatitis A vaccine. Hepatitis E is typically an acute infection that gets better without treatment after several weeks. Some types of hepatitis E virus are spread by drinking water contaminated by an infected person’s stool. Other types are spread by eating undercooked pork or wild game. Hepatitis B can cause acute or chronic infection. Recommendation for screening for hepatitis B in pregnant women or in those with a high chance of being infected. Protection from hepatitis B by getting the hepatitis B vaccine. Hepatitis C can cause acute or chronic infection. Doctors usually recommend one-time screening of all adults ages 18 to 79 for hepatitis C. Early diagnosis and treatment can prevent liver damage. The hepatitis D virus is unusual because it can only infect those who have a hepatitis B virus infection. A coinfection occurs when both hepatitis D and hepatitis B infections at the same time. A superinfection occurs already have chronic hepatitis B and then become infected with hepatitis D. The aim of this study is to find the effect of each type of viral hepatitis on the bilirubin (TB , DSB) , and liver enzymes; AST, ALT, ALP,GGT among viral hepatitis patients. 200 patients were selected from the viral hepatitis units in the central public health laboratory in Baghdad city, all the chosen cases were confirmed as a positive samples , they are classified into four equal group each with fifty individual and with a single serological viral hepatitis type either; anti-HAV( IgM ) , HBs Ag , anti-HCV ,or anti-HEV(IgM ). All patients were tested for; serum bilirubin ( TB ,D.SB ) , AST , ALT , ALP , GGT. Another fifty quite healthy and normal person was selected as a control group for comparison. . Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBVAST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver cell damage than AST, It is relatively specific for hepatocyte necrosis with a marked elevations in viral hepatitis. Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBV.AST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver
Determinants of Women Empowerment in Bishoftu Town; Oromia Regional State of ...AI Publications
The purpose of this study was to determine the status of women's empowerment and its determinants using women's asset endowment and decision-making potential as indicators. To determine representative sample size, this study used a two-stage sampling technique, and 122 sample respondents were selected at random. To analyze the data in this study, descriptive statistics and a probit model were used. The average women's empowerment index was 0.41, indicating a relatively lower status of women's empowerment in the study area. According to the study's findings, only 40.9% of women were empowered, while the remaining 59.1% were not. The probit model results show that women's access to the media, women's income, and their husbands' education status have a significant and positive impact on the status of women's empowerment, while the family size of households has a negative impact. As a result, it is important to enhance women's access to the media and income, promote family planning and contraception, and improve men's educational status in order to improve the status of women's empowerment.
Authoring a personal GPT for your research and practice: How we created the Q...Leonel Morgado
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
The debris of the ‘last major merger’ is dynamically youngSérgio Sacani
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skills
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
2. International journal of Horticulture, Agriculture and Food science(IJHAF)
Vol-4, Issue-6, Nov-Dec, 2020
https://dx.doi.org/10.22161/ijhaf.4.5.5
ISSN: 2456-8635
www.aipublications.com Page | 243
Open Access
mutation induction is done by gamma ray irradiation.
According to Nunoo et al. [17], gamma rays have the
advantage that the dosage used is more accurate, the
penetration of irradiation into cells is homogeneous and
produces new gene combinations with high mutation
frequencies, in addition to its ability to improve one
character without changing good characters in the plant.
The success of developing mutants is largely
determined by the amount of irradiation dose applied. In
general, the higher the irradiation dose applied, the chance
for the formation of mutants will be higher, along with the
higher degree of damage that will occur. Therefore, it is
necessary to know the optimum dose that induces the
formation of the most mutants. In addition to dosage, the
success of mutant formation is also determined by the
levels of oxygen and water molecules in the material to be
irradiated. Herison et al. [18] revealed that the more water
and oxygen molecules in the irradiated material, the more
free radicals are formed, which causes mutations. Mutants
with the desired character were generally acquired at or
slightly below the LD50 value [19-21], which is the dose
that causes death in as much as 50% of the irradiated
population [19, 21].
LD 50 is one of the parameters used to determine the
response of plants to gamma ray irradiation [22], in
addition to the decreased rate of seedling growth due to
gamma ray irradiation [16]. The response of plants to
gamma ray irradiation determined by the level of
sensitivity of a substance or material (radiosensitivity).
The lower the LD50 value, the more sensitive a material is
to gamma irradiation, and vice versa [16]. The levels of
radiosensitivity vary depending on the species, cultivar,
plant organs and physiological conditions [24].
Various studies have been conducted to obtain plant
responses to gamma ray irradiation. The response of plants
to gamma ray irradiation has been reported by several
researchers, such as on wild tomato [17], banana [20],
cassava [22], chili [23], sorghum [19, 25], Wilman
lovegrass [26], rice [15, 16, 27, 28], and mungbean [29].
This study aimed to determine the optimal dose of gamma
irradiation which induces the highest genetic diversity in
four genotypes of lowland rice.
II. MATERIALS AND METHODS
The genetic material used was the seeds of four lowland
rice genotypes, namely the G10 line, the G16 line, the
“Baas Selem” cultivar, and the superior variety “Inpago
Unram-1”. Those rice seeds were packed in brown bags
containing 500 seeds per bag and labeled according to the
treatment. The seeds were irradiated at the doses of 200,
300, 400, and 500 Gy in the “Gammacell 220” gamma ray
radiator belonging to the Center for Isotope and Radiation
Application (PAIR)-BATAN. Planting of the irradiated
seeds were carried out in the glasshouse of the Faculty of
Agriculture, University of Mataram. Mutant M1 seeds are
planted in nursery tubs filled with planting media in the
form of a mixture of soil, sand and vermicompost fertilizer
in a ratio of 1: 1: 1. Non-irradiated seeds of each rice
genotype were used as control. Each tub was planted with
mutant seeds from one treatment dose with different
genotypes to obtain 20 seedbeds.
The median lethal dose (LD50) was calculated based
on the number of seeds that survived the different mutagen
doses [29] and linear regression analysis [28]. The LD 50
value was determined. Observations of the number of
seeds that grew into rice seedlings, plant height and
number of leaves were counted on the 14th
day after
seeding. Data were analyzed using Microsoft Excel for
Windows.
III. RESULTS AND DISCUSSION
Gamma ray irradiation is used by researchers to create
high genetic diversity. Genetic diversity is very important
in plant breeding programs. The first step to initiate a
mutant-based plant breeding program is to determine the
optimal dose of gamma ray irradiation [26]. According to
Human [30], the highest genetic diversity will be obtained
at the LD50. This is because the level of damage caused by
gamma ray irradiation is proportional to the high rate of
mutations induced.
Induced mutation with gamma ray irradiation aims to
produce a basic population with a high level of genetic
diversity which will then be selected through further
breeding programs. The mutants produced after going
through a series of selections can be immediately released
as superior varieties or as cross parents in the subsequent
breeding programs.
G10 and G16 rice lines are cross lines that have
weaknesses in one or more characters. The G10 line had a
weakness in the number of unfilled grains which was still
quite high, while the G16 line had a low number of grains
per panicle. “Baas Selem” is a Balinese local cultivar
(parent of the G10 line) which has low productivity, while
Inpago Unram-1 is a national superior variety whose
character changes due to gamma irradiation are wanted to
be determined.
From Fig. 1 to Fig. 4, it can be seen that the higher the
irradiation doses applied to the seeds, the fewer the
number of seeds grew into seedlings. This is because
gamma ray irradiation causes damage to DNA due to
3. International journal of Horticulture, Agriculture and Food science(IJHAF)
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mutation of genes and chromosome structure. The same
results were also reported by Nura et al. [23] on chili,
Suliartini et al. [16] and Kumar et al. [28] on rice, and
Alvarez-Holguin [26] on Wilman lovegrass (Eragrostis
superba Peyr.).
The quadratic regression y = -0.0004x2 - 0.789x +
499.39 resulted in an LD50 value of 277 Gy in the G10
rice line (Fig. 1). This value indicates the level of
sensitivity of G10 seeds to gamma ray irradiation. The
highest genetic diversity in G10 was obtained at a gamma
ray irradiation dose of 277 Gy, meaning that the chances
of obtaining the desired characters were found at this level
of irradiation dose. Astuti et al. [25] reported that the
optimum dose ranges to induce genetic diversity in two
sorghum genotypes (“Konawe Selatan” and “Sorghum
Malai Mekar”) were 300 to 350 Gy.
Based on the relationship between the gamma ray
irradiation doses and the number of seeds that grew into
seedlings in the G16 rice line, a lethal dose of 50% was
obtained at a dose of 408 Gy (Fig. 2). This value is lower
than the LD50 value in the Inpago Unram-1 mutant line
(518 Gy) (Fig. 4). Harding et al. [31] obtained LD50
values in 13 rice varieties irradiated at doses of 50–800 Gy
ranging from 345 to 423 Gy.
The LD50 of “Baas Selem” rice mutant was obtained
at the irradiation dose of 316 Gy (Fig. 3). The mutant
growing ability of the local cultivar “Baas Selem” was
higher than that of the G10 rice line but lower than that of
the G16 rice line. This can be seen from the number of
seeds that grew into seedlings and the LD50 values. At a
dose of 500 Gy, no seeds survived until 14 days of
germination, in contrast to the results of the study by
Harding et al. [31] with seeds survive up to a dose of 600
Gy. This could be due to the different sensitivity of
different genotypes to gamma ray irradiation
Mutation inductions are expected result in high
diversity in the traits to be selected while maintaining the
original good characters in the plants. The success rate of
gamma ray irradiation in increasing the genetic diversity of
a population is determined by the radiosensitivity of the
irradiated genotype [32]. The sensitivity of Inpago Unram-
1 was the lowest compared to the other three genotypes
tested, which is indicated by the highest LD50 value of
Inpago Unram-1 rice mutants (518 Gy).
Fig. 1. LD 50 of the “G10” rice line, based on the number of
growing M1 seeds of the G10 mutants irradiated with
different doses of gamma rays
Fig. 2. LD 50 of the “G16” rice line, based on the number of
growing M1 seeds of the G16 mutants irradiated with
different doses of gamma rays
4. International journal of Horticulture, Agriculture and Food science(IJHAF)
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Fig. 3. LD 50 of the “Baas Selem” rice variety, based on the
number of growing M1 seeds of the Baas Selem mutants
irradiated with different doses of gamma rays
Fig. 4. LD 50 of the “Inpago Unram-1” rice variety, based
on the number of growing M1 seeds of the Inpago Unram-1
mutants irradiated with different doses of gamma rays
Table 1. Seedling height and leaf number on the seedlings of rice mutants of several genotypes irradiated at different doses
of gamma rays
Doses of gamma ray
irradiation (Gy)
Seedling height (cm) Leaf number
G10 G16 Baas Selem
Inpago
Unram-1
G10 G16 Baas Selem
Inpago
Unram-1
0 24.93 25.19 23.52 22.04 4.10 3.50 4.02 3.14
200 19.55 24.07 20.73 21.11 3.22 3.16 3.26 3.04
300 16.11 16.20 19.13 19.25 3.48 3.52 3.30 3.42
400 12.86 14.53 16.89 17.06 3.30 3.44 3.84 4.10
500 12.94 16.40 0.00 23.65 2.93 4.18 0.00 4.02
The sensitivity of the four genotypes tested was higher
than the two upland rice genotypes tested by Suliartini et
al. [16], i.e. 195 Gy on red rice and 202 Gy on black rice.
Fuji and Matsumura found that the LD50 ranged from 200
to 500Gy for the japonica variety and from 200 to 650 Gy
for the indica variety [33].
In terms of seedling growth, seedling height decreased
as irradiation doses increased, except for Inpago Unram-1
whose height was highest at 500 Gy (Table 1). This is due
to different plant sensitivity and random mutations that
give different responses. Harding et al. [31] also reported a
decrease in M1 mutant seedling height and M1 survival
percentage under field conditions. A significant reduction
in seedling height due to increases in mutagen dose also
occurred in Wilman lovegrass [26], roselle [34] and pigeon
pea [35].
The number of leaves showed a different response.
The “G10” and “Baas Selem” mutants had lower leaf
number than the control (0 Gy). On the other hand, the
“G16” and “Inpago Unram-1” mutants increased leaf
numbers at random irradiated doses (Table 1). This is
because gamma irradiation causes random mutations in
genes and plant chromosomes.
The number of rice mutant leaves decreased at 200
Gy, then increased at 300 and 400 Gy (Table 1). At a dose
of 500 Gy there was a variation, in which leaf number of
G10 and Inpago Unram 1 decreased, while that of G16
increased. It is suspected that this was due to the different
sensitivity of the genotypes to gamma ray irradiation.
IV. CONCLUSION
It can be concluded that the number of growing seeds
decreased as the doses of gamma irradiation increased; the
LD50 value of the four rice genotypes ranged from 264 to
518 Gy; and the optimal dose of gamma irradiation for
G10, G16, Baas Selem, and Inpago Unram-1 mutants were
264, 398, 316, and 518 Gy, respectively. Among the
genotypes tested, “G10 rice line” mutant was most
sensitive whereas “Inpago Unram-1” mutant was least
sensitive to gamma ray irradiation.
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