This document provides information about cotton, including its scientific name, species, distribution, origin, varieties, botany, climatic requirements, cultivation practices, quality parameters, and yields. The key points are:
- Cotton belongs to the genus Gossypium, with four main species cultivated around the world.
- India is a major producer and cultivator of cotton, growing multiple species across states like Maharashtra, Gujarat, and Andhra Pradesh.
- Cotton requires warm temperatures and can grow in various soil types as long as pH is between 5.5-8.5.
- Quality is determined by parameters like ginning percentage, fiber length, fineness, strength, and spinning count.
Genetic variation is crucial for successful barley improvement. Genomic technologies are improving dramatically and are providing access to the genetic diversity within this important crop species. Diverse collections of barley germplasm are being assembled and mined via genome-wide association studies and the identified variation can be linked to the barley sequence assembly. Introgression of favorable alleles via marker-assisted selection is now faster and more efficient due to the availability of single nucleotide polymorphism platforms. High-throughput genotyping is also making genomic selection an essential tool in modern barley breeding.
Genetic variation is crucial for successful barley improvement. Genomic technologies are improving dramatically and are providing access to the genetic diversity within this important crop species. Diverse collections of barley germplasm are being assembled and mined via genome-wide association studies and the identified variation can be linked to the barley sequence assembly. Introgression of favorable alleles via marker-assisted selection is now faster and more efficient due to the availability of single nucleotide polymorphism platforms. High-throughput genotyping is also making genomic selection an essential tool in modern barley breeding.
A presentation on cultivated cotton species in worldSantosh pathak
Cotton, the king of fibers, usually referred as white gold is soft, fluffy staple fiber that grows in a ball, or protective capsule, around the seed of cotton plants of the genus Gossypium.
The plant is shrub native to tropical and subtropical regions around the world, including the Americas, Africa ,and India.
GPB 311: Maize- 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 of Maize
A presentation on cultivated cotton species in worldSantosh pathak
Cotton, the king of fibers, usually referred as white gold is soft, fluffy staple fiber that grows in a ball, or protective capsule, around the seed of cotton plants of the genus Gossypium.
The plant is shrub native to tropical and subtropical regions around the world, including the Americas, Africa ,and India.
GPB 311: Maize- 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 of Maize
importance of production of cashew. it includes about botany, all varities. cotains all cimatic and soil requirement of the crop. also contais different methods of propogation, cultivation ascpects and processig aspects.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. SCIENTIFIC NAME: Gossypium spp.
Cotton is the seed fibre.
Cotton produces finest fibre
Textile Industry uses cotton.
SPECIES OF COTTON:
There are 4 species of cotton, such as:
Asian cotton: Gossypium arboreum
African cotton: Gossypium herbaceum
American cotton: Gossypium hirsutum
Egyptian/sea land cotton: Gossypium barbadens
India is the only country where all 4 species are cultivated.
Cotton is called as the white gold.
3. DISTRIBUTION:
World: USA, China, INDIA, Pakistan, Uzbekistan
In area India ranks 1st
In production: India ranks 3rd after USA and china.
In India: Maharashtra, Gujarat, Andhra Pradesh, Punjab, Haryana, Madhya Pradesh,
Rajasthan, Karnataka and Tamil Nadu.
USA is the largest producer.
In India; Gossypium hirsutum is grown in 36% area, Gossypium arboreum in 16%
area, Gossypium herbaceum in 7-8% area.
Gossypicum barbadens produces the finest quality.
4. ORIGIN:
Gossypium arboreum : Asia and Africa
Gossypium herbaceum : Africa
Gossypium hirsutum & Gossypium barbadens : USA & Mexico
Bt cotton (transgenic cotton) avoid American Pinkboll worm which is a
major pest of cotton.
VARIETIES:
G. hirsutum : F-414, LH-886, F-505, MCU-5, MCU-7
G. arboreum : LD-230, LD-491, Lohit, Shamli, Malgiri, Mahaqnadi
G. barbadens : Survins (popularly known as Anjali)
G. herbaceum : G.Cotton-13, Raichur-51
Hybrids: First hybrid in world developed in India i.e. H-4, Shankar-4.
LHS-13, Dhanalaxmi, Omshankar, Maruvikas, JKHY-2, PKHY-2, CICR,
HH-1(At Nagpur) DCH-31, Savitha.
5. BOTANY OF COTTON:
Two type of branching are seen in cotton
Monopodial- vegetative branches don’t bear flower.
Sympodial- bear flower, reproductive branches.
In cotton fruit is called as boll
The fibre is the elongation of the seed coat.
In the first 15-18 days after fertilization of the boll, attain 90% of the final size.
The fibre elongation is completed by 21-24 days.
8. CLIMATIC REQUIREMENT:
It is a tropical and subtropical crop.
Annual temperature is over 15.50C.
The optimum temperature for vegetative growth is 210C.
During fruiting period the day temperature is 270C to 300C.
It can’t tolerate frost.
SOIL:
Can be grown in wide range of soil
In central India-heavy and black soil (Vertisoils).
In southern states-Red and Alluvial soil.
pH of 5.5 to 8.5. is ideal for growing of cotton.
9. COTTON GROWING REGIONS:
1. Northern- Punjab, Haryana
2. Central Zone- Maharashtra, Gujrat, Rajasthan
3. Southern- Tamil Nadu, Karnataka.
SOWING TIME:
At Northern Zone sowing time- 1st week of May
Now a days early varieties (1st week of June and 3rd week of May) is the ideal time.
At central zone: Sowing is done by onset of monsoon and time is 4th week of June to
1st week of July.
At south zone: Crop grown in onset of monsoon. For growing in residual soil moisture
August and September.
10. LAND PREPARATION:
Field should be ploughed 15-20cm deep with mould board plough.
Then 4 harrowings are done.
No stubbles of the previous crop should be left in the field.
For irrigated crop, particularly in North, the field should be prepared
by applying heavy pre-sowing irrigation.
SEED RATE:
G. hirsutum : 18-20kg/ha
G. arboreum : 10-15kg/ha
G. herbaceum : 10-15kg/ha
for hybrid seed rate is 2-3kg/ha
SPACING: 60x30cm (general).
For hybrids 120cm to 150cm (R-R) and 60cm plant to plant
11. SEED TREATMENT:
To control the seed borne diseases the seed is treated with 0.01%
Streptomycin, Oxytetracyclin (Paushamycin or Agrimycin) and with
0.1% Systemic fungicide like carboxin (vitavax) solutions for 6-8 hours.
The treated seed should be dried in shade before sowing.
METHOD OF PLANTING:
Seed drill and dibbling method are used in planting of cotton.
NUTRIENT MANAGEMENT:(N:P2O5:K2O)
For HYV – In rainfed condition In irrigated condition
50:25:25 80:40:40
For hybrid- 100:50:50 160:80:80
In heavy soil: N is applied in 2 splits: ½ N applied during thinning and another ½ at
flowering stage.
In light soil: N applied in 3 splits 1/3 at sowing, 1/3 at square formation, 1/3 at flowering
stage.
All the P and K are applied as basal. K is required for maintaining the quality of fibre to give
strength.
12. IRRIGATION:
It is a drought tolerant crop due to its deep root system.
Water requirement is 600 to 800 mm.
It cannot tolerate excess moisture in the soil .
Interval between two irrigations depends on the soil type, rainfall
and others related climatic factors.
Crop can withstand up to 75% depletion of available soil moisture.
Cannot tolerate water logging conditions .
Critical Stages:
Square formation stage
Flowering stage
Boll developing stage
13. WEED MANAGEMENT:
First 50 -60 DAS is the critical period of Crop Weed Competition,
5 – 6 intercultural operations should be done depending on the intensity of
weeds.
Weed flora: Trianthama portulacastrum, Cynodon dactylon, Portulaca
oleracea, Cellosia spp. Digitaria senguinalis, Euphorbia hirta, sedges:
Cyperus spp.
Management:
Pre planting incorporation of Basalin @ 1kg ai/ha.
Pre emergence: Pendimethalin @ 1kg ai/ha or Trifluralin @ 1kg ai/ha.
Post emergence: Diuron @0.75 kg ai/ha
Non selective herbicide used in the inter row space: Paraquat @ 0.4 kg
ai/ha; Glyphosate @ 1kg ai/ha.
14. TOPPING:
Cotton is an indeterminate plant, to check excessive vegetative
growth topping is practiced ,
Toping refers to the removal of the terminal bud. Level of topping or
at what node topping is to be done will differs with cotton plant type.
MCU-5: Topping at 15th node level (70 – 80) DAS resulted in better yields
MCU-7: 10 – 12th node (90DAS)
It restricts excessive vegetative growth retards senescence, keeping the
leaves green for longer time thus prolonging their effective period.
15. BUD AND BOLL SHEDDING:
Heavy shedding of flower buds and young bolls occur which is aggravated
under adverse conditions of soil, climate and management.(may be 60%)
Under natural conditions 10 to 15% loss occurs.
Various reasons for bud and boll shedding in Cotton:
Unfavourable Weather conditions
Imbalanced nutrient supply
Incidence of pest and disease
Physical injury
Management
Spraying of NAA –planofix @10 ppm at flower initiation (1 ml in 100 liter)
50 – 60 DAS & 15 days after 1st application resulted in retention of more
bolls.
16. HARVESTING:
Harvesting usually commences in the month of Nov. and extends to March
Harvesting is done usually by hand picking the cotton from the open
matured bolls.
Harvesting is done in 4 -5 pickings as and when bolls are fully matured.
Seed cotton should be dry before picking.
Picked seed cotton separately for marketing and protect from sun, if
exposed than lowering the grade.
YIELDS:
Dryland crop - 10to 15 q/ha
Irrigated Crops - 25 to 30q/ha
Hybrids - 35 to 40 q/ ha.
Yield is measured by Bale. 1 Bale = 170 kg
17. QUALITY PARAMETERS:
1.Ginning percentage:
Recovery of lint from seed cotton is called Ginning percentage.
This value ranges from 24 -43 % in different cottons.
GP = (Weight of lint/ Weight of seed cotton) x 100
(Seed Cotton = Cotton Seed + Lint)
2. Colour of fibre:Colour of the fibre of cotton is white with few
exceptions like desi cotton which have reddish or yellowish tinge.
White coloured cotton which are shiny are considered as superior cotton.
18. 3. Length of fibre:
The length of fibre is mainly predetermined by heredity and is only slightly
influenced by
growing conditions.
Fibre length is the mean length of lint hair expressed in mm. longer the length
superior will be the quality.
Groups Length (mm) Varieties
Short staple < 19.5 Lohit , G - 27
Medium staple 20.0 – 21.5 Raichur 51 ,DB-3-12
Medium long Staple 22.0 – 24.0 MCU-7,G cot 12
Long staple 24.5- 26.5 Krishan, JKHY– 1
Superior long staple 27.0 – 29.5 MCU -5 ,H4,Amaravathi
Extra-long staple 32 & above Suvin and sujatha
19. 4. Fibre fineness:
It denotes the diameter of the fibre hair or thickness.
Lesser the diameter superior is the quality.
Thickness of the fibre ranges from 15-20 microns.
Fibre fineness is generally expressed as microgram/ inch of the fibre which is
also called micronaire value.
Instrument MICRONAIRE is used.
Groups Fineness variety
Very fine < 3.0 -
Fine 3.0 – 3.9 MCU -5 , Varalaxmi ,H6
Average 4.0 – 4.9 H4
Coarse 5.0 -5.9 AKH -4 , maljari
Very coarse >6.0
20. 5. Fibre strength:
Fibre strength does not refer to an individual fibre but to a tuft of fibres of
a given thickness.
It is expressed as maximum load in terms of Kg that a fibre bundle can take
when stretched in one direction before it breaks.
Fibre strength is measured in thousands of pounds /sq inch or
kg/sq cm and grade is allotted, based on strength cotton is classified into
Groups Grade
Very strong >95
Strong 86 – 95
Average 76 – 85
Fair 66 -75
Weak 66- below
21. 6. Spining count:
Spinnabilty of the fibre depends on length and thickness of the fibre .
It is expressed in counts or hanks.
A count is the number of hanks that a pound of cotton gives.
One count is equal to 840 yards.
Thus finer the thread the greater will be the count. Ordinarily Indian
cottons have 22 counts.
While the best quality cotton may have count ranging between 80to400. On
the basis of spinnability cottons are divided into five groups.
Group Counts Varieties
Course Cotton 1 - 17 Maljari
Medium coarse 17-26 AKH4, Sanjay
Superior medium coarse 26 – 35 Nerma
Fine 35 -48 Bur 1007
Superior fine 40- 80 MCU5, H4, H6
> 80 Varalaxmi, Suvin,
22. 7. Hygroscopicity:
The dry cotton absorbs moisture from the atmosphere.
Presence of moisture in the lint affects the colour, elasticity, lustre etc., and
the fibres having moisture break very frequently.
Thus the fibres which absorbs less moisture are considered to be of superior
quality and vice-versa.
8. Seed Index:
It is the test weight , which is weight of 100 seeds (g).
Seed index of cotton varies from 4.8 to 11g.
9. Oil content:
It varies from 14.5 to 22.5% is desi cotton and ranges between 17.5 to 22.5 %
in American cottons.
10. Lint Index: It is the weight of lint form 100seeds
Lint Index = [Weight of 100 seeds/(100 –G.P)] x GP