Germplasms Conservation, Evaluation, Documentation, Distribution and Quarantine
Plant Breeding
K. Vanangamudi
Field seed bank
Shoot tip bank
DNA banks
International Institutes conserving germplasm
This document provides information on breeding methods for self-pollinated crops. It discusses pureline selection, mass selection, and multiline breeding. Pureline selection involves isolating homogenous lines from a mixed population and selecting the best ones. Mass selection selects desirable plants directly from a mixed population based on phenotype. Multiline breeding develops mixtures of isolines or related lines that differ in specific genes to provide disease resistance while maintaining uniform agronomic traits.
Selection: pure line, mass and pedigree breeding methods for self pollinated ...Vinod Pawar
This document discusses different selection methods used in self-pollinating crops, including pure line selection, mass selection, and pedigree selection. Pure line selection involves selecting the best individual plants and propagating their progeny to create homogeneous varieties. Mass selection selects many plants with desirable traits and mixes their seeds to create heterogeneous varieties with wider adaptation. Pedigree selection maintains records of each selected plant's ancestry over multiple generations to develop homogeneous, homozygous varieties taking 14-15 years.
Plant exploration, germplasm collection, conservation and utilizationSyed Zahid Hasan
Sequentially given germplasm exploration, collection, conservation,evaluation and utilization sof Agroforestry plants.
Some information and pictures collected from google.
This document summarizes three case studies on using marker-assisted breeding techniques:
1) Introgressing rice QTLs controlling root traits from donor Azucena into recipient Kalinga III. Five target QTLs were introgressed over three backcrosses using foreground, background, and recombinant selection with RFLPs and SSRs.
2) Introgressing the submergence tolerance Sub1 QTL from donor IR49830 into popular rice variety Swarna. The QTL was introgressed over three backcrosses and a BC3F2 line identified with minimal donor DNA.
3) Introgressing drought tolerance QTLs from donor CML247 into
Single seed descent and multilines varieties pptSheetal3497
The document discusses single seed descent (SSD) method and multiline varieties. It begins by explaining the SSD method, which involves selecting a single seed randomly from selected plants at each generation to make the bulk, instead of bulking the whole seed lot. This method is useful for improving quantitative traits like yield rather than qualitative traits. It then describes the steps involved in the SSD method from hybridization to seed multiplication. The document also discusses advantages and disadvantages of the SSD method and multiline varieties. It provides examples of crops developed using these methods like wheat varieties Kalyan Sona and KML7404.
Male sterility, types and utilization in hybrid seed productionHirdayesh Anuragi
The document discusses different types of male sterility including cytoplasmic male sterility (CMS), genetic male sterility (GMS), and cytoplasmic genetic male sterility (CGMS). It describes key characteristics of each type of male sterility such as mode of inheritance, environmental sensitivity, and use in hybrid seed production. The document also covers creation of male sterility through mutations, classification of male sterility systems, and applications of male sterility in commercial hybrid seed production.
15. mass selection in cross pollinated cropsNaveen Kumar
This document discusses breeding methods for cross-pollinated crops. It describes 10 different breeding methods including mass selection, backcrossing, heterosis breeding, and transgenic breeding. It focuses on two main categories of breeding for cross-pollinated crops: population improvement and hybrid/synthetic varieties. Population improvement methods include mass selection and progeny testing methods like ear-to-row selection and recurrent selection. Mass selection involves selecting plants based on phenotype without progeny testing, while ear-to-row selection and recurrent selection do involve progeny testing over multiple generations.
This document provides information on breeding methods for self-pollinated crops. It discusses pureline selection, mass selection, and multiline breeding. Pureline selection involves isolating homogenous lines from a mixed population and selecting the best ones. Mass selection selects desirable plants directly from a mixed population based on phenotype. Multiline breeding develops mixtures of isolines or related lines that differ in specific genes to provide disease resistance while maintaining uniform agronomic traits.
Selection: pure line, mass and pedigree breeding methods for self pollinated ...Vinod Pawar
This document discusses different selection methods used in self-pollinating crops, including pure line selection, mass selection, and pedigree selection. Pure line selection involves selecting the best individual plants and propagating their progeny to create homogeneous varieties. Mass selection selects many plants with desirable traits and mixes their seeds to create heterogeneous varieties with wider adaptation. Pedigree selection maintains records of each selected plant's ancestry over multiple generations to develop homogeneous, homozygous varieties taking 14-15 years.
Plant exploration, germplasm collection, conservation and utilizationSyed Zahid Hasan
Sequentially given germplasm exploration, collection, conservation,evaluation and utilization sof Agroforestry plants.
Some information and pictures collected from google.
This document summarizes three case studies on using marker-assisted breeding techniques:
1) Introgressing rice QTLs controlling root traits from donor Azucena into recipient Kalinga III. Five target QTLs were introgressed over three backcrosses using foreground, background, and recombinant selection with RFLPs and SSRs.
2) Introgressing the submergence tolerance Sub1 QTL from donor IR49830 into popular rice variety Swarna. The QTL was introgressed over three backcrosses and a BC3F2 line identified with minimal donor DNA.
3) Introgressing drought tolerance QTLs from donor CML247 into
Single seed descent and multilines varieties pptSheetal3497
The document discusses single seed descent (SSD) method and multiline varieties. It begins by explaining the SSD method, which involves selecting a single seed randomly from selected plants at each generation to make the bulk, instead of bulking the whole seed lot. This method is useful for improving quantitative traits like yield rather than qualitative traits. It then describes the steps involved in the SSD method from hybridization to seed multiplication. The document also discusses advantages and disadvantages of the SSD method and multiline varieties. It provides examples of crops developed using these methods like wheat varieties Kalyan Sona and KML7404.
Male sterility, types and utilization in hybrid seed productionHirdayesh Anuragi
The document discusses different types of male sterility including cytoplasmic male sterility (CMS), genetic male sterility (GMS), and cytoplasmic genetic male sterility (CGMS). It describes key characteristics of each type of male sterility such as mode of inheritance, environmental sensitivity, and use in hybrid seed production. The document also covers creation of male sterility through mutations, classification of male sterility systems, and applications of male sterility in commercial hybrid seed production.
15. mass selection in cross pollinated cropsNaveen Kumar
This document discusses breeding methods for cross-pollinated crops. It describes 10 different breeding methods including mass selection, backcrossing, heterosis breeding, and transgenic breeding. It focuses on two main categories of breeding for cross-pollinated crops: population improvement and hybrid/synthetic varieties. Population improvement methods include mass selection and progeny testing methods like ear-to-row selection and recurrent selection. Mass selection involves selecting plants based on phenotype without progeny testing, while ear-to-row selection and recurrent selection do involve progeny testing over multiple generations.
This document discusses mutation breeding and mutation induction. It defines mutation as a heritable change in phenotype and describes two types of mutations: those caused by changes in nuclear DNA and those caused by changes in cytoplasmic DNA. It then outlines the history of mutation research and induction starting in the 1920s. The document discusses spontaneous versus induced mutations and different mutagens used to induce mutations like radiation, chemicals, and base analogues. It describes the breeding procedure for mutation breeding and screening techniques. Finally, it covers advantages, limitations, research centers involved, and some achievements of mutation breeding.
Role of mutation breding in crop improvement Sanjay Kumar
This document summarizes a seminar on the role of mutation breeding in crop improvement. It discusses types of mutations, mutagens used, procedures for mutation breeding including choice of material and mutagen dose, screening and selection of mutants, achievements and major varieties developed through mutation breeding in India. Key advantages are that mutation breeding is a cheap and rapid method to develop new varieties and induce novel alleles. Limitations include the low frequency of desirable mutants and difficulties identifying micro-mutations. Mutation breeding has significantly contributed to global food security by developing new crop varieties.
Breeding methods in cross pollinated cropsDev Hingra
This document discusses methods of breeding in cross-pollinated crops. It describes mass selection, progeny selection (ear-to-row method), modified ear-to-row method, and recurrent selection. It also discusses hybrid varieties, synthetic varieties, and the operations involved in producing hybrids and synthetics. The key methods discussed are mass selection, ear-to-row selection, and recurrent selection.
Marker Assisted Selection in Crop BreedingPawan Chauhan
Marker Assisted Selection is a value addition to conventional methods of Crop Breeding. It has been gaining importance in plant breeding with new generation of plant breeders and to get accurate and fast desired result from plant breeding.
Marker-assisted selection (MAS) is a plant breeding method that uses DNA markers to select for desirable traits. It allows breeders to select plants earlier in development compared to phenotypic selection. MAS has advantages like being unaffected by environment and ability to select for recessive traits, but may be more expensive initially than conventional methods. Careful analysis of costs and benefits is needed to determine if MAS is advantageous for a particular program over traditional breeding. MAS requires tightly linked markers, knowledge of marker-trait associations, and data management to be effective. A variety of MAS approaches exist like backcrossing, pyramiding, and combined MAS and phenotypic selection.
This document discusses the collection, evaluation, and documentation of plant genetic resources or germplasm. It provides details on the importance of biodiversity in India and outlines the primary and secondary centers of diversity for various fruit crops. It then describes the process of germplasm collection, including planning exploration missions, areas to survey, sampling techniques, and collection methods for different plant types. The document also covers evaluation of germplasm for traits and stresses, as well as the documentation process which records information about accessions, collection, characterization and more.
Molecular markers and Functional molecular markersChandana B.R.
This document discusses functional markers and their development and use in plant breeding. It begins by defining markers and describing different types of markers used historically, from morphological to molecular markers. It then focuses on functional markers, which are derived from polymorphisms within genes that affect traits of interest. The document discusses different types of functional markers like SSR and SNP-based markers. It notes advantages of functional markers include not requiring validation and providing direct information about gene effects. Limitations include that many genes have not been functionally characterized. The document ends with a case study using EST-SSR markers to estimate genetic diversity in maize breeding populations.
This document discusses advance plant breeding techniques, including molecular breeding (marker assisted selection) and micro-propagation. Molecular breeding uses DNA markers linked to desirable traits to assist in selecting plants with those traits, without needing to phenotype the traits directly. Marker assisted selection allows for more breeding cycles in a year and pyramiding of multiple resistance genes. Micro-propagation, also called clonal propagation, involves propagating plants vegetatively in vitro to produce clones that are genetically identical to the original plant.
Production of synthetic seed involves encapsulating somatic embryos, shoot buds, or cell aggregates using tissue culture techniques. This allows for the large-scale, low-cost propagation of plants while maintaining genetic uniformity. Synthetic seeds can be stored longer than traditional seeds and planted directly in fields without the need for transplanting. While synthetic seeds have advantages over traditional micropropagation methods, their production and germination rates can still be limited for some plant species.
Presentation entitled "Centres of origin- biodiversity and its significance" explains all the basics and some recent aspects regarding center of origins of some crops.
This document discusses different types of mapping populations used in genetic mapping. It describes F2, backcross, double haploid, recombinant inbred line, and near isogenic line populations. For each type, it provides details on how they are developed and their advantages and disadvantages. It also discusses how marker segregation ratios differ depending on the population type and marker dominance. The document recommends using short-term mapping populations initially for preliminary mapping but developing long-term populations like recombinant inbred lines for global mapping projects.
This document discusses the production of inbred lines and hybrid varieties. It describes various methods for producing inbred lines, including inbreeding through self-pollination over multiple generations, and producing haploid plants through anther culture or colchicine treatment. Inbred lines are evaluated through phenotypic and topcross testing before being improved through various breeding methods. Hybrid varieties are produced by crossing two inbred lines and exhibit heterosis. Advantages of hybrids include increased uniformity and yield, while disadvantages include the need to purchase new seed annually. The document outlines achievements and future prospects of hybrid crop development.
This document discusses plant introduction as a method of plant breeding. It begins by defining plant introduction as transferring plant genotypes or groups of genotypes to new areas where they have not been previously grown. The document then covers the history of plant introduction, the different types of plant introduction, the purposes of plant introduction, agencies involved in plant introduction, and the process of acclimatization. It also discusses the merits and demerits of plant introduction as a plant breeding method.
GPB 311: Wheat- Centre of origin, distribution of species, wild relatives and major breeding objectives and procedures for development of varieties and hybrids for improvement yield, adoptability, stability, biotic and abiotic stress tolerance and quality in Wheat
molecular markers ,application in plant breedingSunil Lakshman
1. The document discusses a seminar on applying molecular markers in plant breeding. It defines different types of markers including morphological, cytological, biochemical, and DNA/molecular markers.
2. It describes various molecular marker techniques like RFLP, RAPD, AFLP, and SSR. The techniques differ in characteristics like being dominant or co-dominant.
3. Molecular markers have important applications in plant breeding like marker-assisted selection, genetic diversity analysis, germplasm characterization, variety identification, and gene pyramiding.
4. Two case studies demonstrate the use of SSR markers to study genetic diversity in aromatic rice accessions and identify hybrids in sunflower. Specific markers were
Plant genetic resources their utilization and conservation in crop improvementNaveen Kumar
This document discusses plant genetic resources. It defines plant genetic resources as the genetic material in crop plants and their wild relatives. It notes that plant genetic resources include landraces, obsolete and modern cultivars, advanced breeding lines, wild relatives, and induced mutants. The document outlines the various components that make up plant genetic resources and strategies for conserving genetic resources both in and ex situ.
Hybrid seed technology involves crossing two pure parental lines that have desirable traits to produce hybrid seeds that exhibit superior traits compared to the parents. It requires developing inbred lines, identifying suitable parental lines, and developing systems for pollen control. Major challenges include maintaining parental lines and separating male and female reproductive organs. Hybrid seeds allow for higher yields than open pollinated varieties and can be produced economically at large scale. Male sterility techniques like cytoplasmic male sterility are important for facilitating hybrid seed production in self-pollinating crops.
Clone is the progeny of a single plant, produced by asexual reproduction
Clonal selection is the selection of the most desirable members of a clone for continued vegetative propagation rather than for sexual reproduction.
The members of a clone keep up genetic constancy.
So by clonal selection and continued vegetative propagation, the desirable qualities of plants can be maintained for long.
This document provides a detailed history of plant breeding from pre-Mendelian era to modern era in 4 parts:
1) Pre-Mendelian era discussed early domestication and experimentation before Mendel's work.
2) Mendelian era covered rediscovery of Mendel's laws and initial application to plant breeding in early 1900s.
3) Post-Mendelian era saw expansion of genetics knowledge and techniques like hybrid development.
4) Modern era discussed major developments like green revolution varieties, biotechnology, and institutional growth in India.
presenation only for exsitu conservation includes topic (Components of ex-situ conservation
Plant genetic resources conservation in gene banks, national gene banks and gene repositories
Preservation of genetic materials under natural conditions, Perma-frost conservation
Guidelines for sending seeds to network of active/ working collections
Orthodox and recalcitrant seeds- differences in handling
Clonal repositories
genetic stability under long term storage condition)
Country Status Reports on Underutilized Crops by Keng-Chang Chuangapaari
Country Status Reports on Underutilized Crops by Keng-Chang Chuang, Taiwan - Regional Expert Consultation on Underutilized Crops for Food and Nutritional Security in Asia and the Pacific November 13-15, 2017, Bangkok
This document discusses mutation breeding and mutation induction. It defines mutation as a heritable change in phenotype and describes two types of mutations: those caused by changes in nuclear DNA and those caused by changes in cytoplasmic DNA. It then outlines the history of mutation research and induction starting in the 1920s. The document discusses spontaneous versus induced mutations and different mutagens used to induce mutations like radiation, chemicals, and base analogues. It describes the breeding procedure for mutation breeding and screening techniques. Finally, it covers advantages, limitations, research centers involved, and some achievements of mutation breeding.
Role of mutation breding in crop improvement Sanjay Kumar
This document summarizes a seminar on the role of mutation breeding in crop improvement. It discusses types of mutations, mutagens used, procedures for mutation breeding including choice of material and mutagen dose, screening and selection of mutants, achievements and major varieties developed through mutation breeding in India. Key advantages are that mutation breeding is a cheap and rapid method to develop new varieties and induce novel alleles. Limitations include the low frequency of desirable mutants and difficulties identifying micro-mutations. Mutation breeding has significantly contributed to global food security by developing new crop varieties.
Breeding methods in cross pollinated cropsDev Hingra
This document discusses methods of breeding in cross-pollinated crops. It describes mass selection, progeny selection (ear-to-row method), modified ear-to-row method, and recurrent selection. It also discusses hybrid varieties, synthetic varieties, and the operations involved in producing hybrids and synthetics. The key methods discussed are mass selection, ear-to-row selection, and recurrent selection.
Marker Assisted Selection in Crop BreedingPawan Chauhan
Marker Assisted Selection is a value addition to conventional methods of Crop Breeding. It has been gaining importance in plant breeding with new generation of plant breeders and to get accurate and fast desired result from plant breeding.
Marker-assisted selection (MAS) is a plant breeding method that uses DNA markers to select for desirable traits. It allows breeders to select plants earlier in development compared to phenotypic selection. MAS has advantages like being unaffected by environment and ability to select for recessive traits, but may be more expensive initially than conventional methods. Careful analysis of costs and benefits is needed to determine if MAS is advantageous for a particular program over traditional breeding. MAS requires tightly linked markers, knowledge of marker-trait associations, and data management to be effective. A variety of MAS approaches exist like backcrossing, pyramiding, and combined MAS and phenotypic selection.
This document discusses the collection, evaluation, and documentation of plant genetic resources or germplasm. It provides details on the importance of biodiversity in India and outlines the primary and secondary centers of diversity for various fruit crops. It then describes the process of germplasm collection, including planning exploration missions, areas to survey, sampling techniques, and collection methods for different plant types. The document also covers evaluation of germplasm for traits and stresses, as well as the documentation process which records information about accessions, collection, characterization and more.
Molecular markers and Functional molecular markersChandana B.R.
This document discusses functional markers and their development and use in plant breeding. It begins by defining markers and describing different types of markers used historically, from morphological to molecular markers. It then focuses on functional markers, which are derived from polymorphisms within genes that affect traits of interest. The document discusses different types of functional markers like SSR and SNP-based markers. It notes advantages of functional markers include not requiring validation and providing direct information about gene effects. Limitations include that many genes have not been functionally characterized. The document ends with a case study using EST-SSR markers to estimate genetic diversity in maize breeding populations.
This document discusses advance plant breeding techniques, including molecular breeding (marker assisted selection) and micro-propagation. Molecular breeding uses DNA markers linked to desirable traits to assist in selecting plants with those traits, without needing to phenotype the traits directly. Marker assisted selection allows for more breeding cycles in a year and pyramiding of multiple resistance genes. Micro-propagation, also called clonal propagation, involves propagating plants vegetatively in vitro to produce clones that are genetically identical to the original plant.
Production of synthetic seed involves encapsulating somatic embryos, shoot buds, or cell aggregates using tissue culture techniques. This allows for the large-scale, low-cost propagation of plants while maintaining genetic uniformity. Synthetic seeds can be stored longer than traditional seeds and planted directly in fields without the need for transplanting. While synthetic seeds have advantages over traditional micropropagation methods, their production and germination rates can still be limited for some plant species.
Presentation entitled "Centres of origin- biodiversity and its significance" explains all the basics and some recent aspects regarding center of origins of some crops.
This document discusses different types of mapping populations used in genetic mapping. It describes F2, backcross, double haploid, recombinant inbred line, and near isogenic line populations. For each type, it provides details on how they are developed and their advantages and disadvantages. It also discusses how marker segregation ratios differ depending on the population type and marker dominance. The document recommends using short-term mapping populations initially for preliminary mapping but developing long-term populations like recombinant inbred lines for global mapping projects.
This document discusses the production of inbred lines and hybrid varieties. It describes various methods for producing inbred lines, including inbreeding through self-pollination over multiple generations, and producing haploid plants through anther culture or colchicine treatment. Inbred lines are evaluated through phenotypic and topcross testing before being improved through various breeding methods. Hybrid varieties are produced by crossing two inbred lines and exhibit heterosis. Advantages of hybrids include increased uniformity and yield, while disadvantages include the need to purchase new seed annually. The document outlines achievements and future prospects of hybrid crop development.
This document discusses plant introduction as a method of plant breeding. It begins by defining plant introduction as transferring plant genotypes or groups of genotypes to new areas where they have not been previously grown. The document then covers the history of plant introduction, the different types of plant introduction, the purposes of plant introduction, agencies involved in plant introduction, and the process of acclimatization. It also discusses the merits and demerits of plant introduction as a plant breeding method.
GPB 311: Wheat- Centre of origin, distribution of species, wild relatives and major breeding objectives and procedures for development of varieties and hybrids for improvement yield, adoptability, stability, biotic and abiotic stress tolerance and quality in Wheat
molecular markers ,application in plant breedingSunil Lakshman
1. The document discusses a seminar on applying molecular markers in plant breeding. It defines different types of markers including morphological, cytological, biochemical, and DNA/molecular markers.
2. It describes various molecular marker techniques like RFLP, RAPD, AFLP, and SSR. The techniques differ in characteristics like being dominant or co-dominant.
3. Molecular markers have important applications in plant breeding like marker-assisted selection, genetic diversity analysis, germplasm characterization, variety identification, and gene pyramiding.
4. Two case studies demonstrate the use of SSR markers to study genetic diversity in aromatic rice accessions and identify hybrids in sunflower. Specific markers were
Plant genetic resources their utilization and conservation in crop improvementNaveen Kumar
This document discusses plant genetic resources. It defines plant genetic resources as the genetic material in crop plants and their wild relatives. It notes that plant genetic resources include landraces, obsolete and modern cultivars, advanced breeding lines, wild relatives, and induced mutants. The document outlines the various components that make up plant genetic resources and strategies for conserving genetic resources both in and ex situ.
Hybrid seed technology involves crossing two pure parental lines that have desirable traits to produce hybrid seeds that exhibit superior traits compared to the parents. It requires developing inbred lines, identifying suitable parental lines, and developing systems for pollen control. Major challenges include maintaining parental lines and separating male and female reproductive organs. Hybrid seeds allow for higher yields than open pollinated varieties and can be produced economically at large scale. Male sterility techniques like cytoplasmic male sterility are important for facilitating hybrid seed production in self-pollinating crops.
Clone is the progeny of a single plant, produced by asexual reproduction
Clonal selection is the selection of the most desirable members of a clone for continued vegetative propagation rather than for sexual reproduction.
The members of a clone keep up genetic constancy.
So by clonal selection and continued vegetative propagation, the desirable qualities of plants can be maintained for long.
This document provides a detailed history of plant breeding from pre-Mendelian era to modern era in 4 parts:
1) Pre-Mendelian era discussed early domestication and experimentation before Mendel's work.
2) Mendelian era covered rediscovery of Mendel's laws and initial application to plant breeding in early 1900s.
3) Post-Mendelian era saw expansion of genetics knowledge and techniques like hybrid development.
4) Modern era discussed major developments like green revolution varieties, biotechnology, and institutional growth in India.
presenation only for exsitu conservation includes topic (Components of ex-situ conservation
Plant genetic resources conservation in gene banks, national gene banks and gene repositories
Preservation of genetic materials under natural conditions, Perma-frost conservation
Guidelines for sending seeds to network of active/ working collections
Orthodox and recalcitrant seeds- differences in handling
Clonal repositories
genetic stability under long term storage condition)
Country Status Reports on Underutilized Crops by Keng-Chang Chuangapaari
Country Status Reports on Underutilized Crops by Keng-Chang Chuang, Taiwan - Regional Expert Consultation on Underutilized Crops for Food and Nutritional Security in Asia and the Pacific November 13-15, 2017, Bangkok
This document discusses ex situ conservation methods for plant genetic resources, focusing on field gene banks and seed banks. Field gene banks involve growing plant collections in artificial ecosystems for study and comparison. Seed banks preserve seeds at low temperatures and moisture levels for long-term conservation, though only seeds from orthodox species can be stored this way. Cryopreservation allows storage of seeds, pollen, or embryos in liquid nitrogen for even longer preservation periods. Both methods have advantages like easy access to materials and large storage capacity, but field gene banks are costly to maintain and exposed to threats, while seed banks cannot store recalcitrant species.
This document discusses plant genetic resources and their management in India. It provides background on the historical aspects of plant genetic resource exploration, collection, and conservation. It describes the gene pool concept and outlines India's plant genetic resource management system. It then summarizes the key activities involved - exploration and collection, conservation methods, evaluation, documentation, distribution, and utilization of plant genetic resources.
This document summarizes a credit seminar on plant genetic resource management and future strategies in fruit crops. It discusses plant genetic resources, including landraces, obsolete cultivars, modern cultivars, wild forms, wild relatives, and mutants. It describes gene pools and types of seed collection for conservation. India is highlighted as one of the most biodiverse countries with centers of origin for crop plants. The document outlines genetic resource management activities and provides statistics on genetic resource collections for various horticultural crops in India. Future needs are discussed like increasing in situ conservation and meeting demand for nutrition. Case studies demonstrate in vitro preservation and cryopreservation methods for conserving grapevine genetic resources. The conclusion emphasizes the importance of genetic diversity and
Current advances and prospects in Germplasm conservation for fruit cropsShubham230245
The document provides information about germplasm conservation approaches for horticultural crops in India. It discusses in-situ conservation methods like biosphere reserves, national parks, and gene sanctuaries. It also describes ex-situ conservation methods including seed banks, field gene banks, in-vitro gene banks, and cryopreservation. Several institutes across India are involved in conserving germplasm of various fruits through these approaches.
Centers of origin are geographical areas where crop plants first developed distinctive traits. Russian geneticist Nikolai Vavilov identified eight main centers and three subsidiary centers of crop origin and diversity based on plant exploration. These centers include areas like China, India, Central Asia, and South America. Primary centers of diversity contain vast genetic resources in wild areas, while secondary centers have cultivated varieties with crossing over. Microcenters within centers exhibit high diversity and rapid evolution. Gene sanctuaries protect genetic resources in natural habitats from human impacts and allow natural selection.
This document summarizes a presentation on germplasm collection activities. It discusses the importance of germplasm collection for conservation and breeding purposes. It describes different sources and types of germplasm collection, as well as methods, components, and techniques for collection. Key institutions for germplasm storage in Pakistan and internationally are also outlined. Both merits such as conservation of genetic diversity and risks like disease entry are reviewed. The conclusion emphasizes the importance of collection to avoid loss of indigenous germplasm.
This document discusses advances in breeding fruit crops, specifically focusing on bananas. It provides details on the history, genetics, breeding objectives and techniques used for banana breeding. Some key points:
- Banana breeding aims to develop varieties with traits like disease resistance, dwarf stature, high yield, and abiotic stress tolerance.
- Techniques used include hybridization between diploid and tetraploid parents to produce triploid hybrids, as well as mutation breeding and tissue culture.
- Challenges in banana breeding include its vegetative propagation, parthenocarpy, polyploidy and long generation time.
- Popular varieties developed through breeding include Grand Nain, Lady Finger, and
Seed conservation is an important activity and a strategy to save, preserve, safeguard and conserve plant biological resources mostly in the form of seeds both at national and international level. Many organizations, agencies and institutes are involved in conservation realizing the importance of rare and endangered plant species in very existence of mankind now and in future. There are two broad approaches namely in situ conservation and ex situ conservation. Little effort is done to brief some of the techniques in seed conservation here in this presentation.
Seed conservation is an important activity and strategy of preserving, saving and conserving our plant biological resources mostly in the form of seeds both at national and international level. several organizations, agencies, institutes and many are involved in conservation of rare and endangered species realizing their importance in very existence of mankind now and also in future. There are two broad approaches namely in situ conservation and ex situ conservation. Little effort is done to brief some of the techniques to conserve biological resources here in this presentation.
Gene banks are facilities that preserve genetic material from plants and animals. They store seeds, tissue cultures, sperm, eggs, and other biological material under controlled conditions to conserve genetic diversity. Major purposes of gene banks are to maintain crop diversity and make genetic resources available for plant breeding and research. They help conserve agricultural biodiversity and provide material that can be used to restore lost species. Gene banks conduct activities like collecting, processing, storing, regenerating, and documenting genetic samples while maintaining the integrity of collections. The largest gene banks house millions of accessions from all over the world.
The document discusses various activities related to plant genetic resources including exploration and collection, conservation, evaluation, documentation, multiplication, and utilization of germplasm. It describes exploration as collecting genetic material from various sources and assembling it in one place. Germplasm conservation methods include in situ conservation of genetic resources in their natural habitat and ex situ conservation by preserving genetic material outside its natural habitat, such as storing seed. Evaluation of germplasm involves analyzing collected samples for morphological, genetic, economic, and other traits. Documentation involves compiling and disseminating information about genetic resources activities like collection and storage. Utilization refers to using germplasm in crop improvement programs.
Germplasm conservation refers to maintaining plant genetic material, such as seeds or living plants, in a way that minimizes the risk of loss. This allows the material to be used in the future if needed. There are two main approaches: in-situ conservation keeps germplasm in its natural habitat through methods like biosphere reserves and national parks, while ex-situ conservation stores germplasm outside its natural habitat using techniques like seed banks, field gene banks, and botanical gardens. The goal of both is to preserve genetic diversity and protect endangered plant species and economically important varieties.
This document discusses different methods of germplasm conservation including in situ and ex situ conservation. In situ conservation involves protecting genetic resources in their natural habitats through national parks, biosphere reserves, gene sanctuaries and sacred forests. Ex situ conservation involves maintaining genetic resources outside their natural habitats through seed banks, gene banks, tissue culture, cryopreservation and botanical gardens. The document provides details on various types of in situ and ex situ conservation methods.
The document discusses conservation of medicinal plants in India. It notes that 95% of plants used in Indian systems of medicine are collected from the wild, leading to overharvesting and threats to many species. Several organizations in India are working to promote in-situ and ex-situ conservation of medicinal plants, including establishing medicinal plant conservation areas and conservation parks. International organizations like CITES, IUCN, and WHO also support conservation efforts and sustainable use of medicinal plant resources.
The document summarizes a seminar on biodiversity and conservation of fruit crops. It defines key terms like biodiversity and germplasm. It describes India's biodiversity hotspots and status as a center of diversity for many fruit crops. It outlines principles and practices for germplasm collection, including exploration, sampling methods, and collection of wild relatives. It also discusses evaluation and documentation of collected germplasm.
HORTICULTURAL BOOKS by VANANGAMUDI K. pdfVanangamudiK1
HORTICULTURAL BOOKS
Dr. K. Vanangamudi
PUBLISHED BY NIPA
A HANDBOOK OF HORTICULTURAL SCIENCES VOL. 1: PRINCIPLES & PRACTICES OF HORTICULTURE AND FRUIT SCIENCE
HORTICULTURAL SCIENCES VOL. 2: VEGETABLE SCIENCE AND ORNAMENTAL HORTICULTURE
A HANDBOOK OF HORTICULTURAL SCIENCES VOL. 3: SPICES, PLANTATION, MEDICINAL, AROMATIC CROPS AND POST-HARVEST MANAGEMENT
MCQ's ON HORTICULTURE
FACTS AND FIGURES OF FRUIT CROPS - AN OVERVIEW.pdfVanangamudiK1
FACTS AND FIGURES OF FRUIT CROPS
COMMON NAME, SCIENTIFIC NAME, FAMILY, CHROMOSOME NUMBER, ORIGIN, INFLORESCENCE, FRUIT TYPE, FLOWERING
AND FRUITING PERIOD OF FRUIT CROPS
Production Technology of Fruit crops.pdfVanangamudiK1
This document provides information on the cultivation practices for various fruits. It includes the season, seed/planting material used, spacing, fertilizer and yield for fruits like mango, banana, acid lime, sweet orange, mandarin orange, grapes, guava, pineapple, sapota, papaya, pomegranate, jackfruit, ber, amla, jamun, custard apple, fig, West Indian cherry, litchi, avocado, loquat, karonda, carambola and passion fruit. The information is presented in a tabular format for easy reference of the key parameters for each fruit.
PROTECTION OF PLANT VARIETY AND FARMERS RIGHT ACT.pdfVanangamudiK1
PROTECTION OF PLANT VARIETY & FARMERS RIGHT ACT
Plant breeding
K Vanangamudi
TNPSC AO, HO, ADH, AAO, AHO EXAMS
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
PPV & FR Act 2001
Notable features of PPV & FR Act
Farmers rights
Breeders Rights
Extant variety
Essentially Derived Variety (EDV)
Researchers right
Registration of plant varieties
National Gene Fund
Plant Variety Journal of India (PVJ of India)
INTELLECTUAL PROPERTY RIGHTS
Plant breeding
K Vanangamudi
TNPSC AO, HO, ADH, AAO, AHO EXAMS
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
Protective umbrella of TRIPS covers
Orthodox or conventional IPR’s
Cyber Law
Geographical Indications of goods
Organizations involved in IPR
Variety release
Plant breeding
K Vanangamudi
TNPSC AO, HO, ADH, AAO, AHO EXAMS
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
Official release of the varieties at Central and State levels
Procedure for release of the varieties at Central level
Organizational setup of Varietal Identification Committee (VIC)
Central Seed Committee (CSC)
Central Sub-Committee on Crop Standards, Notification and Release of Varieties for Agricultural Crops
Notification of varieties
Procedure for release of State variety
State Varietal Identification System
State Seed Subcommittee for Agricultural Crops
VARIETAL SEED PRODUCTION IN MAIZE
Seed Science & Technology
K Vanangamudi
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
Zenia and metazenia in maize
Pre sowing seed treatment in maize
HYBRID SEED PRODUCTION IN MAIZE\
Seed Science & Technology
K Vanangamudi
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
Detasseling
Single cross hybrid, Double cross hybrid, Single cross hybrid, Single cross hybrid, Three way hybrid, Double top cross hybrid
VARIETAL SEED PRODUCTION IN PADDY
Seed Science & Technology
K Vanangamudi
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
SEED VILLAGE
Seed Science & Technology
K Vanangamudi
ICAR AIEEA JRF & SRF for PG admissions exams
ICAR NET, ARS & STO (T-6) exams
IBPS – AFO exams
Concept, Features, History, Establishment and advantages of seed villages
Establishing seed processing unit
Advanta India seed village (Indian tobacco co-operation)
MSSRF seed village
Association of Indian development (AID) – seed village
Temple of Asclepius in Thrace. Excavation resultsKrassimira Luka
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
CapTechTalks Webinar Slides June 2024 Donovan Wright.pptxCapitolTechU
Slides from a Capitol Technology University webinar held June 20, 2024. The webinar featured Dr. Donovan Wright, presenting on the Department of Defense Digital Transformation.
🔥🔥🔥🔥🔥🔥🔥🔥🔥
إضغ بين إيديكم من أقوى الملازم التي صممتها
ملزمة تشريح الجهاز الهيكلي (نظري 3)
💀💀💀💀💀💀💀💀💀💀
تتميز هذهِ الملزمة بعِدة مُميزات :
1- مُترجمة ترجمة تُناسب جميع المستويات
2- تحتوي على 78 رسم توضيحي لكل كلمة موجودة بالملزمة (لكل كلمة !!!!)
#فهم_ماكو_درخ
3- دقة الكتابة والصور عالية جداً جداً جداً
4- هُنالك بعض المعلومات تم توضيحها بشكل تفصيلي جداً (تُعتبر لدى الطالب أو الطالبة بإنها معلومات مُبهمة ومع ذلك تم توضيح هذهِ المعلومات المُبهمة بشكل تفصيلي جداً
5- الملزمة تشرح نفسها ب نفسها بس تكلك تعال اقراني
6- تحتوي الملزمة في اول سلايد على خارطة تتضمن جميع تفرُعات معلومات الجهاز الهيكلي المذكورة في هذهِ الملزمة
واخيراً هذهِ الملزمة حلالٌ عليكم وإتمنى منكم إن تدعولي بالخير والصحة والعافية فقط
كل التوفيق زملائي وزميلاتي ، زميلكم محمد الذهبي 💊💊
🔥🔥🔥🔥🔥🔥🔥🔥🔥
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Germplasm Conservation, Evaluation, Documentation, Distribution and Quarantine.pdf
1. Germplasms: Conservation, Evaluation,
Documentation, Distribution and Quarantine
Dr. K. Vanangamudi
Formerly Dean (Agriculture), AC & RI, Coimbatore,
Dean, Adhiparashakthi Agricultural College,Kalavai,
Professor and Head - Seed Science and Technology,
Tamil Nadu Agricultural University, Coimbatore.
Germplasm Conservation
Refers to protection of genetic diversity of crop plants from
genetic erosion.
Two methods
in-situ conservation
ex situ conservation.
1. in - situ conservation
Conservation of germplasm under natural conditions
Achieved by protecting the area from – human interference,
such as Natural Park, biosphere reserve or gene sanctuary.
NBPGR, National Bureau of Plant Genetic Resources, New
Delhi, established gene sanctuaries in Meghalaya for citrus,
North Eastern regions for musa, citrus, oryza and saccharum.
Merits
Wild species and natural or semi natural ecosystems are
preserved together.
Demerits
Several areas will have to be conserved for a single species.
Management is difficult.
Costly method.
2. ex - situ conservation
Refers to preservation of germplasm in gene banks.
2. Advantages
Helps to preserve entire genetic diversity of a crop species at
one place.
Easy handling.
Cheap method.
3. 5 ways of conservation
1. Seed banks
Germplam is stored as seeds of various genotypes.
Orthodox seeds: Seeds are dried to low moisture content and
stored at low temperature
o Examples: Maize, wheat, rice, carrot, papaya, pepper,
chickpea, cotton, sunflower.
Recalcitrant seeds: A drastic loss in viability with a decrease in
moisture content below 12 to 13%
o Examples: Citrus, cocoa, coffee, rubber, oilpalm, mango,
jack fruit etc.
There are three types of conservation
Short term: Working collection is stored for short term (3-5
years) at 5-10°C.
Medium term: Active collections are stored for medium term
(10-15 years) at zero degrees Celsius.
Long-term: Base collections are conserved for long term (50
years or more) at -18 or -20°C.
Advantages of gene banks
Large number of samples can be conserved in a very small
space.
Handling is easy.
Free from pathogens and insects.
Disadvantages
Seeds of recalcitrant species can not be stored.
Failure of power supply may lead to loss of viability.
It requires periodical evaluation for seed viability.
After some time, multiplication is essential for storage of fresh
seeds.
3. 2. Plant Bank (Field bank)
Areas of land in which germplasm collections of growing plants
are assembled.
Limitations
1. Require large areas
2. Expensive to establish and maintain
3. Prone to damage from disease and insect attacks
4. Man – made
5. Natural disasters
6. Human errors in handling
Established field gene banks
Name of country Crop species
Malaysia 500 ha Oil palm.
Indonesia 1000 ha area for coconut and other perennial crops.
Philippines South East Asian germplasm for banana
India Global collection of coconut in Andman and Nicobar.
3. Shoot tip banks
Conserved as shoot-tips (Meristem cultures) and nodal
segments.
Advantages
Conserved free from virus or other pathogens.
Vegetatively propagated crops like potato, sweet potato,
cassava are conserved.
Regeneration of meristems is extremely easy.
Recalcitrant seeds can be easily conserved by meristem
cultures.
4. Cell and organ banks
Cryopreservation (at –196°C in liquid nitrogen) of embryogenic
cell cultures, somatic/ zygotic embryos.
5. DNA banks
DNA segments from the genomes of germplasm accessions are
maintained and conserved.
4. Gene banks for various crops in India
Crop species Location of
Gene bank
Name of Research institute/Centre
All crops New Delhi
1976
National Bureau of Plant Genetic
Resources
Wheat Karnal
1965
Directorate of Wheat Research
Rice Cuttack
1946
Central Rice Research Institute
Potato Shimla
1945
Central Potato Research Institute
Pulses Kanpur
1966
Indian Institute for Pulses Research
Oilseed crops Hyderabad
1977
Directorate of Oilseed Research
Sorghum Hyderabad
2009
National Research Centre for
Sorghum
2014 Indian Institute of Millets Research
Soybean Indore
1987
National Research Centre for Soybean
Cotton Nagpur
1976
Central Institute for Cotton Research
Plantation crops Kasargod
1916
Central Plantation Crops Research
Institute
Tobacco Rajahmundry
1947
Central Tobacco Research Institute
Tuber crops other
than potato
Trivandrum
1963
Central Tuber Crops Research
Institute
Maize New Delhi
1929
Indian Agricultural Research Institute
Forge and fodder
crops
Jhansi
1962
Indian Grassland and Fodder
Research Institute
Groundnut, Pearl
millet, Sorghum,
Pigeon pea and
Bengal gram
Patancheru
1972
International Crops Research
Institute for Semi-Arid Tropics
Forest species Dehradun
1906
Forest Research Institute
All crops Kolkata
1890
Botanical Survey of India
5. List of important International Institutes conserving germplasm
Name Institute Activity
IRRI
1960
International Rice Research
Institute, Los Banos, Philippines
Tropical rice
Rice collection: 42,000
CIMMYT
1966
Centre International de-
Mejoramients de maize Trigo, El
Baton, Mexico
Maize and wheat
(Triticale, barely,
sorghum)
Maize collection –
8000
CIAT
1967
Center International de-agricultural
Tropical Palmira, Columbia
Cassava and beans,
(also maize and rice)
in collaboration with
CIMMYT and IRRI
IITA
1967
International Institute of Tropical
Agriculture, Ibadan, Nigeria.
Grain legumes, roots,
and tubers, farming
systems.
CIP
1971
Centre International de-papa-Lima.
Peru
Potatoes
WARDA
1970
West African Rice Development
Association, Monrovia, Liberia
Regional Cooperative
Rice Research in
Collaboration with IITA
and IRRI
IPGRI
1974
International Plant Genetic
Research Institute, Rome, Italy
Genetic conservation.
AVRDC
1971
The Asian Vegetable Research and
Development Centre, Taiwan
Tomato, Onion,
Peppers, Chinese
cabbage.
ICARDA
1977
International Center for Agricultural
Researach in the Dry Areas. Aleppo,
Syria
wheat, barley,
chickpea, lentils,
pasture legumes and
small ruminants
ICRAF
1977
International Centre for Research in
Agroforestry, Nairobi, Kenya.
Integrating trees in
land-use systems in
developing countries
Evaluation of Germplasm
To identify gene sources for resistance to biotic and abiotic
stresses earliness, dwarfness, and productivity and quality
characters.
To classify the germplasm into various groups.
6. Germplasm cataloguing, Data storage and Retrieval
Each germplasm accession is given an accession number as
below.
IC (Indigenous collection)
EC (exotic collection)
IW (Indigenous wild)
Information to be recorded in germplasm maintenance records
Species and variety names
Place of origin
Adaptation
Various feature or descriptors
Catalogues of the germplasm collection are published by the
gene banks.
Compilation, storage and retrieval is now done using special
computer programmes.
Distribution and Utilization
Supplied to the researchers who are engaged in the research
work of a particular crop species.
Used in crop improvement programmes.
Quarantine
Prophylactic measures to prevent the entry of new diseases,
insects and weeds from other countries.
Quarantine offices are located at all seaports and international
airports.
Plant material will be grown in isolation to check the entry of
new diseases, pest or a weed and then issue phytos anitary
certificate.