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1. Analysis of differentially expressed proteins affecting insecticidal protein content in Bt cotton under high‐temperature and water deficit stress using label‐free quantitation

Author:
Xiang Zhang; Qiaofeng Tian; Zixu Zhao; Zhaodi Dong; Yuan Chen; Dehua Chen
Source:
Journal of agronomy and crop science 2021 v.207 no.1 pp. 1-11
ISSN:
0931-2250
Subject:
absorption; agronomy; bolls; cotton; cultivars; digestion; drought; endoplasmic reticulum; environment; field capacity; fructose; genes; glucose; hexoses; hydrolysis; insect resistance; insecticidal proteins; peptides; protein content; protein synthesis; protein transport; proteolysis; proteomics; starch; synthesis; water stress; weight
Abstract:
... Differently expression proteins under high‐temperature and drought stress were screened to investigate how stress affected the insecticidal protein content. These stresses decrease insecticidal protein, so the goal of this study was to provide a theoretical reference for maintaining the insect resistance of Bt cotton. The effect of high‐temperature and drought stress on differently expression prot ...
DOI:
10.1111/jac.12438

2. Cotton production during the tropical monsoon season. I – The influence of variable radiation on boll loss, compensation and yield

Author:
Paul R. Grundy; Stephen J. Yeates; Kerry L. Bell
Source:
Field crops research 2020 v.254 pp. 107790
ISSN:
0378-4290
Subject:
Gossypium hirsutum; administrative management; bolls; canopy; correlation; cotton; cultivars; early flowering; fiber quality; field crops; field experimentation; fruit drop; fruiting; irrigation; late flowering; light intensity; lint yield; monsoon season; research; shade; solar radiation; sowing date; temperature; tropics; yield components
Abstract:
... Growth and reproductive structure development in cotton (Gossypium hirsutum) is dependent on light intensity, which is often irregular in tropical environments due to shading from cloudiness associated with the monsoon. The objective of this study was to evaluate the effects of cloudiness on reproductive organ abscission and how subsequent compensatory organ replacement, with the provision of irri ...
DOI:
10.1016/j.fcr.2020.107790

3. Cotton production during the tropical monsoon season. II – Biomass accumulation, partitioning and RUE in response to boll loss and compensation

Author:
Paul R. Grundy; Stephen J. Yeates; Kerry L. Bell
Source:
Field crops research 2020 v.255 pp. 107868
ISSN:
0378-4290
Subject:
Gossypium hirsutum; Ruta graveolens; administrative management; biomass production; bolls; canopy; cloud cover; compensatory growth; cotton; crop management; cultivars; dry matter partitioning; early flowering; field crops; field experimentation; fruit drop; fruiting; glucose; irrigation; late flowering; light intensity; lint yield; monsoon season; paper; radiation use efficiency; research; shade; sowing date; tropics
Abstract:
... Growth and reproductive structure retention in cotton (Gossypium hirsutum) is dependent on light intensity, which is often irregular in tropical environments due to shading from cloudiness associated with the monsoon. The objective of this study was to evaluate the potential effects that cloudiness-induced reproductive organ abscission and compensatory responses might have on cotton growth, partit ...
DOI:
10.1016/j.fcr.2020.107868

4. N-Use Efficiency and Yield of Cotton (G. hirsutumn L.) Are Improved through the Combination of N-Fertilizer Reduction and N-Efficient Cultivar

Author:
Jing Niu; Huiping Gui; Asif Iqbal; Hengheng Zhang; Qiang Dong; Nianchang Pang; Sujie Wang; Zhun Wang; Xiangru Wang; Guozheng Yang; Meizhen Song
Source:
Agronomy 2020 v.11 no.1 pp. -
ISSN:
2073-4395
Subject:
absorption; agronomy; biomass; bolls; cotton; cultivars; experimental design; fertilizers; field experimentation; nitrogen; nutrient use efficiency; pollution; weight
Abstract:
... Nitrogen (N) fertilizer plays a vital role in increasing cotton yield, but its excessive application leads to lower yield, lower nitrogen use efficiency (NUE), and environmental pollution. The main objective of this study was to find an effective method to enhance the NUE in cotton production. A two-year field experiment was conducted by using a split plot design with N rates (N0, 0 kg N ha⁻¹; N1, ...
DOI:
10.3390/agronomy11010055

5. Effects of planting patterns on yield, quality, and defoliation in machine-harvested cotton

Author:
Fang-yong WANG; Huan-yong HAN; Hai LIN; Bing CHEN; Xian-hui KONG; Xin-zhu NING; Xu-wen WANG; Yu YU; Jing-de LIU
Source:
Journal of integrative agriculture 2019 v.18 no.9 pp. 2019-2028
ISSN:
2095-3119
Subject:
bolls; crop yield; cultivars; defoliation; early development; growing season; leaves; mechanical harvesting; micronaire; planting; seed cotton; China
Abstract:
... The aim of this study was to elucidate the effects of different machine-harvested cotton-planting patterns on defoliation, yield, and fiber quality in cotton and to provide support for improving the quality of machine-harvested cotton. In the 2015 and 2016 growing seasons, the Xinluzao 45 (XLZ45) and Xinluzao 62 (XLZ62) cultivars, which are primarily cultivated in northern Xinjiang, were used as s ...
DOI:
10.1016/S2095-3119(19)62604-3

6. Gossypol in cottonseed increases the fitness cost of resistance to Bt cotton in pink bollworm

Author:
Yves Carrière; Alex J. Yelich; Ben A. Degain; Virginia S. Harpold; Gopalan C. Unnithan; Jae H. Kim; Lolita G. Mathew; Graham P. Head; Keerti S. Rathore; Jeffrey A. Fabrick; Bruce E. Tabashnik
Source:
Crop protection 2019 v.126 pp. 104914
ISSN:
0261-2194
Subject:
Bacillus thuringiensis; Gossypium; Pectinophora gossypiella; alleles; bolls; cadherins; cotton; cottonseed; crops; cultivars; gene frequency; gossypol; insect resistance; insects; larvae; models; mutation; pests; resistance management; seeds; toxins; transgenic plants
Abstract:
... Fitness costs of resistance to Bacillus thuringiensis (Bt) toxins can delay or counter the evolution of insect resistance to transgenic Bt crops. Here we tested the hypothesis that the plant defensive compound gossypol in cottonseed increases costs associated with resistance to Bt toxin Cry1Ac in pink bollworm (Pectinophora gossypiella), a cosmopolitan pest that feeds primarily on cottonseed. Prev ...
Handle:
10113/6570100
DOI:
10.1016/j.cropro.2019.104914
CHORUS:
10.1016/j.cropro.2019.104914

7. Spatial distribution of bolls affects yield formation in different genotypes of Bt cotton varieties

Author:
Jun-jun NIE; Yan-chao YUAN; Du-lin QIN; Yan-hui LIU; Shuang-lei WANG; Jin-pu LI; Mei-ling ZHANG; Na ZHAO; Wen-jun GUO; Jie QI; Li-li MAO; Xian-liang SONG; Xue-zhen SUN
Source:
Journal of integrative agriculture 2019 v.18 no.11 pp. 2492-2504
ISSN:
2095-3119
Subject:
Bacillus thuringiensis; Gossypium; bolls; canopy; cotton; cultivars; fiber quality; field experimentation; genotype; lint yield; transgenic plants; yield components
Abstract:
... To optimize the spatial distribution of cotton bolls and to increase the yield, the relationship between yield components and boll spatial distribution was investigated among different Bt (Bacillus thuringensis) cotton varieties. A five-year field experiment was conducted to reveal the reasons for the differences in lint yield and fiber quality across three Bt cotton varieties with different yield ...
DOI:
10.1016/S2095-3119(19)62617-1

8. Earliness index deters Pectinophora gossypiella incidence on advanced cultivars of Bt cotton

Author:
Muhammad Rafiq Shahid; Muhammad Shakeel; Muhammad Farooq; Muhammad Shahid Arain; Chaudhary Muhammad Shahid Hanif; Haichen Yin; Muhammad Akram; Saghir Ahmad
Source:
Arthropod-plant interactions 2018 v.12 no.2 pp. 303-309
ISSN:
1872-8855
Subject:
Bacillus thuringiensis; Pectinophora gossypiella; bolls; climate change; cotton; cultivars; early development; flowers; larvae; pests; principal component analysis; research institutions; transgenic plants
Abstract:
... Pink bollworm (Pectinophora gossypiella) is recognized as an important pest of cotton and can damage flowers and bolls of both Bt and non-Bt cultivars. Cry-1Ac in Bt cultivars is considered very effective in controlling lepidopterous larvae; therefore, the present study was carried out to investigate the impact of Cry1-Ac and the earliness index on the natural incidence of P. gossypiella at the Co ...
DOI:
10.1007/s11829-017-9577-6

9. Effect of water deficiency on relationships between metabolism, physiology, biomass, and yield of upland cotton (Gossypium hirsutum L.)

Author:
Tohir A. Bozorov; Rustam M. Usmanov; Honglan Yang; Shukhrat A. Hamdullaev; Sardorbek Musayev; Jaloliddin Shavkiev; Saidgani Nabiev; Daoyuan Zhang; Alisher A. Abdullaev
Source:
Journal of Arid Land 2018 v.10 no.3 pp. 441-456
ISSN:
1674-6767
Subject:
Gossypium hirsutum; arid lands; biomass; bolls; branches; breeding; cultivars; deficit irrigation; drought; drought tolerance; flowering; internodes; irrigation rates; leaf area; leaves; lint cotton; metabolism; metabolites; metabolomics; parents; plant height; proline; protocols; transpiration; water stress; yield components
Abstract:
... Drought is a common abiotic stress that considerably limits crop production. The objective of this study is to explore the influence of water deficiency on the yield, physiologic and metabolomic attributes in upland cotton cultivars (Gossypium hirsutum L). Cotton cultivars, 'Ishonch' and 'Tashkent-6' were selected to study the relationships among their physiologic, metabolomic and yield attributes ...
DOI:
10.1007/s40333-018-0009-y

10. Effects of planting dates and shading on carbohydrate content, yield, and fiber quality in cotton with respect to fruiting positions

Author:
Wen-qing ZHAO; You WU; Zahoor Rizwan; You-hua WANG; Yi-na MA; Bing-lin CHEN; Ya-li MENG; Zhi-guo ZHOU
Source:
Journal of integrative agriculture 2018 v.17 no.5 pp. 1106-1119
ISSN:
2095-3119
Subject:
Gossypium hirsutum; bolls; carbohydrate content; cultivars; fiber quality; fruiting; leaves; light intensity; lint cotton; lint yield; planting date; shade; starch; sucrose; temperature; yield components
Abstract:
... Two cotton (Gossypium hirsutum L.) cultivars, Kemian 1 (cool temperature-tolerant) and Sumian 15 (cool temperature-sensitive) were used to study the effects of cool temperature on carbohydrates, yield, and fiber quality in cotton bolls located at different fruiting positions (FP). Cool temperatures were created using late planting and low light. The experiment was conducted in 2010 and 2011 using ...
DOI:
10.1016/S2095-3119(17)61797-0

11. Exploring ethyl methanesulfonate (EMS) treated cotton (Gossypium hirsutum L.) to improve drought tolerance

Author:
Travis W. Witt; Mauricio Ulloa; Mathew G. Pelletier; Venugopal Mendu; Glen L. Ritchie
Source:
Euphytica 2018 v.214 no.7 pp. 123
ISSN:
0014-2336
Subject:
DNA; Gossypium hirsutum; agronomic traits; bolls; cotton; crops; cultivars; drought tolerance; ethyl methanesulfonate; fiber quality; fruiting; gene pool; genetic variation; irrigation rates; lint yield; models; mutagens; point mutation; rain; Texas
Abstract:
... The Texas High Plains often has extended periods between rainfall events, which can lead to a reduction in the yield and fiber quality of cotton (Gossypium hirsutum L.). It is known that cultivated cotton suffers from low levels of genetic diversity due to the over-use in breeding of similar gene pools, which may hinder breeding for drought tolerance. In this study, for the first time the novel va ...
DOI:
10.1007/s10681-018-2206-3

12. First Report of Sclerotinia Boll Rot and Stem Blight of Cotton in Arizona

Author:
J. Hu; U. Handique; E. R. Norton
Source:
Plant disease 2018 v.102 no.8 pp. 1663
ISSN:
0191-2917
Subject:
DNA primers; Gossypium hirsutum; Sclerotinia sclerotiorum; agar; ambient temperature; bolls; canopy; cotton; crop production; cultivars; culture media; fungi; highlands; host range; internal transcribed spacers; leaves; lettuce; mycelium; pathogenicity; pinto beans; polymerase chain reaction; relative humidity; ribosomal DNA; sclerotia; soil; stem blight; stems; streptomycin; wilting; Arizona
Abstract:
... Upland (Gossypium hirsutum L.) and Pima (G. barbadense L.) cotton are economically important throughout the southwestern United States. In August 2017, canopy wilting and boll rot symptoms were observed on upland cultivar Dyna-Gro 3109B2XF planted in Cochise County, Arizona. The affected field area was 8 ha with approximately 10% incidence of the disease. Limbs in proximity to the soil appeared to ...
DOI:
10.1094/PDIS-12-17-1897-PDN

13. Foliar Application of Organic Compounds Stimulate Cotton (Gossypium barbadense L.) to Survive Late Sown Condition

Author:
Ayman El Sabagh; Abdelhamid M. Omar; Mohamed El Menshawi; Samir El Okkiah
Source:
Open Agriculture 2018 v.3 no.1 pp. 684-697
ISSN:
2391-9531
Subject:
Gossypium barbadense; ascorbic acid; bolls; chlorophyll; crop yield; cultivars; field experimentation; flowering; foliar application; leaves; lint cotton; oils; plant organs; research institutions; salicylic acid; seed cotton; sowing date; Egypt
Abstract:
... Application of organic compounds in cotton balances its vegetative and reproductive growth, as well as to improve the seed cotton yield and lint quality properties. Field experiments were conducted with some organic compounds to determine their effects on cotton yield and quality properties of cotton under two sowing times.The experiment was conducted at Sakha Agricultural Research Station, Cotton ...
DOI:
10.1515/opag-2018-0072

14. Mutation of SELF-PRUNING homologs in cotton promotes short-branching plant architecture

Author:
Zhanfeng Si; Hui Liu; Jiankun Zhu; Jiedan Chen; Qiong Wang; Lei Fang; Fengkai Gao; Yue Tian; Yali Chen; Lijing Chang; Bingliang Liu; Zegang Han; Baoliang Zhou; Yan Hu; Xianzhong Huang; Tianzhen Zhang
Source:
Journal of experimental botany 2018 v.69 no.10 pp. 2543-2553
ISSN:
1460-2431
Subject:
Gossypium barbadense; Gossypium hirsutum; alleles; bolls; branches; branching; cotton; crop production; cultivars; flowering; fruiting; loci; molecular cloning; mutants; phenotype; plant architecture; plant density; planting density; point mutation; tetraploidy; tomatoes
Abstract:
... In cotton, the formation of fruiting branches affects both plant architecture and fiber yield. Here, we report map-based cloning of the axillary flowering mutation gene (GbAF) that causes bolls to be borne directly on the main plant stem in Gossypium barbadense, and of the clustered boll mutation gene (cl₁) in G. hirsutum. Both mutant alleles were found to represent point mutations at the Cl₁ locu ...
DOI:
10.1093/jxb/ery093
PubMed:
29547987
PubMed Central:
PMC5920339

15. Reproduction and Pathogenicity of Endemic Populations of Rotylenchulus Reniformis on Cotton

Author:
S. R. Stetina; C. Khanal; E. C. McGawley; C. Overstreet; G. O. Myers; M. T. Kularathna; B. McInnes; F. M. C. Godoy
Source:
Nematropica 2018 v.48 no.1 pp. 68-81
ISSN:
2220-5608
Subject:
Gossypium hirsutum; Rotylenchulus reniformis; animal reproduction; bolls; cultivars; genotype; greenhouse experimentation; host-parasite relationships; lint cotton; phenotype; plant parasitic nematodes; seed cotton; virulence; weight loss; Louisiana
Abstract:
... The reniform nematode (Rotylenchulus reniformis) is the predominant parasitic nematode of upland cotton (Gossypium hirsutum) in the southern United States. Little is known about variability in geographic isolates of reniform nematode. In order to evaluate the comparative reproduction and pathogenicity of reniform nematode populations endemic in Louisiana, a series of microplot and greenhouse exper ...
Handle:
10113/6471026

16. Water-induced variation in yield and quality can be explained by altered yield component contributions in field-grown cotton

Author:
Wei Hu; John L. Snider; Haimiao Wang; Zhiguo Zhou; Daryl R. Chastain; Jared Whitaker; Calvin D. Perry; Freddie M. Bourland
Source:
Field crops research 2018 v.224 pp. 139-147
ISSN:
0378-4290
Subject:
Gossypium hirsutum; bolls; cultivars; drought; dry matter partitioning; flowering; growing season; irrigation management; leaf water potential; lint cotton; micronaire; water stress; yield components; Georgia
Abstract:
... Novel yield component traits and fiber quality indices have been recently developed by breeders to screen for desirable cotton (Gossypium hirsutum L.) lines, but assessing these components in response to water-induced yield variability has received little attention. We investigated the hypothesis that differential sensitivities of whole-crop and intra-boll yield components to drought will largely ...
DOI:
10.1016/j.fcr.2018.05.013

17. Carbon partitioning in the boll plays an important role in fiber quality in colored cotton

Author:
Meiling Zhang; Xianliang Song; Hong Ji; Zhenlin Wang; Xuezhen Sun
Source:
Cellulose 2017 v.24 no.2 pp. 1087-1097
ISSN:
0969-0239
Subject:
Gossypium hirsutum; bolls; carbon; cellulose; color; cotton; cultivars; dry matter accumulation; flowering; harvest index; leaves; micronaire; photosynthesis; seeds
Abstract:
... Assays were conducted to examine the photosynthesis of stem leaves and subtending leaves of cotton bolls, the fiber-quality parameters length, strength and micronaire, and dry matter accumulation in fibers, seeds and burs during fiber development in the colored cotton cultivars ZX-1 and G-7 and the white cotton cultivar LMY28. The results showed that fiber-quality parameters were all lower in ZX-1 ...
DOI:
10.1007/s10570-016-1139-z

18. Effect of Glyphosat and Paraquat Herbicides on Weed Control and Productivity of Cotton

Author:
R.A. Hameed; S. Ajum; M.N. Afzal
Source:
Cercetări agronomice în Moldova 2017 v.50 no.2 pp. 51-56
ISSN:
2067-1865
Subject:
Gossypium hirsutum; application rate; biomass; bolls; cost benefit analysis; cotton; cultivars; glyphosate; paraquat; sowing; weed control; yield components; Pakistan
Abstract:
... Weed control management has a vital role in increasing cotton yield and yield components. In cotton crop weed, infestation may harm significant growth and yield loses. To control the weeds under field conditions in cotton crop, different herbicides were selected with different dose levels. Response of various post emergence herbicides at different levels, i.e. Round up 490 G/L at the rate of 4.7 L ...
DOI:
10.1515/cerce-2017-0014

19. Effects of polymer-coated potassium chloride on cotton yield, leaf senescence and soil potassium

Author:
Xiuyi Yang; Chengliang Li; Qiang Zhang; Zhiguang Liu; Jibiao Geng; Min Zhang
Source:
Field crops research 2017 v.212 pp. 145-152
ISSN:
0378-4290
Subject:
bolls; cotton; cultivars; fertilizer application; field experimentation; financial economics; ions; leaves; nutrient use efficiency; nutrients; photosynthesis; planting; potassium; potassium chloride; potassium fertilizers; potassium sulfate; profits and margins; river deltas; seed yield; soil; toxicity; yield components; China; Yellow River
Abstract:
... Potassium (K) is one of the most important nutrients influencing plants, including cotton growth and metabolism. Because of toxicity from chloride ions, potassium sulfate (K2SO4) usually is used instead as a potassium fertilizer, especially for cotton, although it is lower in K2O content and dearer than potassium chloride (KCl). The objective of this study was to investigate the effects of polymer ...
DOI:
10.1016/j.fcr.2017.07.019

20. Evolution characteristics related to photosynthesis, growth and yield in some old and new cotton cultivars

Author:
H. H. Luo; H. L. Zhang; Y. L. Zhang; W. F. Zhang
Source:
Photosynthetica 2017 v.55 no.2 pp. 301-307
ISSN:
0300-3604
Subject:
Gossypium hirsutum; bolls; cultivars; evolution; genetic improvement; leaves; lint cotton; lint yield; new variety; photochemistry; photosynthates; photosystem II; planting; root shoot ratio; China
Abstract:
... Changes in photosynthetic attributes related to genetic improvement of cotton yield were studied in seven Chinese cotton cultivars widely grown in Xinjiang during the past 30 years. Our results showed that a chlorophyll (Chl) content and net photosynthetic rate (P N) of the 1980s cultivar was the highest among all after 60 days from planting (DAP). However, after 75 DAP, the Chl content, P N, and ...
DOI:
10.1007/s11099-016-0223-9

21. Genetic Effects of Chromosomes 1, 4, and 18 from Three Tetraploid Gossypium Species in Topcrosses with Five Elite Cultivars

Author:
Johnie N. Jenkins; Jack C. McCarty Jr.; B. Todd Campbell; R. W. Hayes; Jixiang Wu; Sukumar Saha; D. M. Stelly
Source:
Crop science 2017 v.57 no.3 pp. 1338-1346
ISSN:
0011-183X
Subject:
Gossypium barbadense; Gossypium hirsutum; Gossypium tomentosum; additive gene effects; agronomic traits; alleles; bolls; chromosome number; chromosome substitution; cultivars; dominance (genetics); hybrids; introgression; lint cotton; lint yield; micronaire; substitution lines; tetraploidy; topcrossing
Abstract:
... Chromosome substitution lines (CSLs) have been developed for selected chromosomes from two tetraploid species of Gossypium and are effective ways to target introgression of alleles from exotic tetraploid species into Upland cotton (G. hirsutum L.) Genetic effects of chromosomes 1, 4, and 18 from Upland cotton (TM‐1), Pima cotton (G. barbadense L.), and Hawaiian cotton (G. tomentosum Nutt. ex Seem) ...
Handle:
10113/6652746
DOI:
10.2135/cropsci2016.06.0528

22. Impact of Dysdercus koenigii Fabricius (Hemiptera: Pyrrhcoridae) density-dependent population on agronomic and qualitative characteristics of different transgenic cotton varieties

Author:
Muhammad Rafiq Shahid; Muhammad Farooq; Muhammad Shakeel; Abid Mahmood; Muhammad Dildar Gogi
Source:
Phytoparasitica 2017 v.45 no.2 pp. 125-133
ISSN:
0334-2123
Subject:
Dysdercus koenigii; Dysdercus suturellus; adults; bolls; cages; control methods; correlation; cultivars; fineness; genotype; germination; lint cotton; pests; proboscis; screening; staining; staple (fibers); transgenic plants; warts
Abstract:
... The cotton stainer, Dysdercus koenigii Fabricius (Hemiptera: Pyrrhcoridae), has become a major threat to transgenic cotton as it causes warts on the internal carpel wall of cotton boll, severe lint staining, lint locks, and lint lesions. Thus, keeping in view the importance of this pest on cotton, in the present study, screening of 13 transgenic cotton genotypes was performed and the population of ...
DOI:
10.1007/s12600-017-0572-3

23. Supplemental Control with Diamides for Heliothines1 in Bt Cotton

Author:
Nathan S. Little; Angus L. Catchot; K. Clint Allen; Jeffrey Gore; Fred R. Musser; Don R. Cook; Randall G. Luttrell
Source:
Southwestern entomologist 2017 v.42 no.1 pp. 15-26
ISSN:
0147-1724
Subject:
Bacillus thuringiensis; Helicoverpa zea; bolls; costs and returns; cultivars; economic threshold; financial economics; flubendiamide; growers; lambda-cyhalothrin; larvae; lint cotton; pests; plant damage; river deltas; spraying; toxicity; transgenic plants
Abstract:
... Supplemental control with diamides for bollworm, Helicoverpa zea (Boddie), in Bt cotton is becoming more frequent, but there is little information on net returns to growers. The value of spraying Bt cotton with commercially available diamides was evaluated at seven locations in the Mississippi Delta cropping region in 2014 and 2015. Plots of Bollgard II®, Widestrike 3®, and non-Bt cotton varieties ...
DOI:
10.3958/059.042.0102

24. Susceptible time window and endurable duration of cotton fiber development to high temperature stress

Author:
Bo XU; Zhi-guo ZHOU; Lin-tao GUO; Wen-zheng XU; Wen-qin ZHAO; Bing-lin CHEN; Ya-li MENG; You-hua WANG
Source:
Journal of integrative agriculture 2017 v.16 no.9 pp. 1936-1945
ISSN:
2095-3119
Subject:
bolls; callose; cellulose; climate; crop production; cultivars; equations; heat; heat stress; lint cotton; micronaire; sucrose; temperature
Abstract:
... The development of the cotton fiber is very sensitive to temperature variation, and high temperature stress often causes reduced fiber yield and fiber quality. Short-term high temperature stress often occurs during cotton production, but little is known about the specific timing and duration of stress that affects fiber development. To make this clear, pot experiments were carried in 2014 and 2015 ...
DOI:
10.1016/S2095-3119(16)61566-6

25. The impact of fiber maturity on estimating the number of cotton (Gossypium hirsutum L.) fibers per seed surface area

Author:
Addissu Ayele; Eric Hequet; Brendan Kelly
Source:
Industrial crops and products 2017 v.102 pp. 16-22
ISSN:
0926-6690
Subject:
Gossypium hirsutum; advanced fiber information system; bias; bolls; branches; computer software; cultivars; density; environmental factors; fiber quality; field experimentation; fruiting; growing season; lint cotton; maturity stage; scanners; screening; seeds; selection criteria; surface area; Texas
Abstract:
... The number of fibers per seed surface area (fiber density) is a selection criterion used to improve cotton fiber quality and yield simultaneously in cotton breeding programs. However, the parameters utilized to estimate fiber density are calculated from fiber quality attributes that are sensitive to environmental variations, especially fiber maturity. Fiber maturity is one of the most important fi ...
DOI:
10.1016/j.indcrop.2017.03.004

26. Effect of potassium fertilization on leaf physiology, fiber yield and quality in cotton (Gossypium hirsutum L.) under irrigated Mediterranean conditions

Author:
Ioannis T. Tsialtas; Sergey Shabala; Demetrios Baxevanos; Theodora Matsi
Source:
Field crops research 2016 v.193 pp. 94-103
ISSN:
0378-4290
Subject:
flowering; gas exchange; cations; carbon; nutrients; carbon dioxide; correlation; growers; stomatal conductance; irrigation; Gossypium hirsutum; fertilizer application; isotopes; sodium; fiber quality; leaves; cultivars; calcium; leaf area; soil; leaf water potential; physiological response; potassium; temperature; bolls; Mediterranean climate; cotton; potassium fertilizers; flowers; magnesium; growing season; lint yield
Abstract:
... The aim of this work was to study the physiological, yield and quality responses of two upland cotton cultivars (Greek and Australian), grown on light-textured soil under irrigated, Mediterranean conditions, to three potassium levels (0, 80, 160kgK2Oha−1). Despite its pivotal role in plant physiology and growth, K supplementation is often neglected by growers due to high cost and complexity with i ...
DOI:
10.1016/j.fcr.2016.03.010

27. Effects of plant density on cotton yield components and quality

Author:
Xiao-yu ZHI; Ying-chun HAN; Ya-bing LI; Guo-ping WANG; Wen-li DU; Xiao-xin LI; Shu-chun MAO; Lu FENG
Source:
Journal of integrative agriculture 2016 v.15 no.7 pp. 1469-1479
ISSN:
2095-3119
Subject:
Bacillus thuringiensis; bolls; breeding; cultivars; fiber quality; field experimentation; fruiting; hybrids; lint cotton; lint yield; manual harvesting; plant density; seeds; transgenic insects; vigor; yield components; China
Abstract:
... Yield and fiber quality of cotton even varies within locules in a boll, but it is not clear how yield components and quality parameters are altered across seed positions of a locule (SPL). A field experiment was arranged in a split plot design with transgenic insect resistant Bt (Bacillus thuringiensis) cotton hybrid cultivar CRI75 and conventional cultivar SCRC28 as the main plots, and three plan ...
DOI:
10.1016/S2095-3119(15)61174-1

28. Evaluation of Innovative Cotton Genotypes Against Insect Pest Prevalence, Fiber Trait, Economic Yield and Virus Incidence in Pakistan

Author:
H. Karar; M. Shahid; S. Ahamad
Source:
Cercetări agronomice în Moldova 2016 v.49 no.1 pp. 29-39
ISSN:
2067-1865
Subject:
Aleyrodidae; Gossypium hirsutum; Pectinophora gossypiella; bolls; breeding; buds; cotton; crop yield; cultivars; fiber quality; flowers; fruiting; genotype; germplasm; insect pests; instrumentation; leaves; manual harvesting; staple (fibers); viruses; Pakistan
Abstract:
... Cotton (Gossypium hirsutum) is known as important commodity globally. The experiment was conducted at Cotton Research Station, Multan, Punjab-Pakistan, to evaluate resistance of nine innovative cotton cultivars against insect pest complex were used along with their fiber traits, economic yield and virus incidence. Population of jassid, whitefly and thrips was recorded by using leaf turn method, bo ...
DOI:
10.1515/cerce-2016-0003

29. Cotton Stage of Growth Determines Sensitivity to 2,4-D

Author:
Byrd Seth A.; Collins Guy D.; Culpepper A. Stanley; Dodds Darrin M.; Edmisten Keith L.; Wright David L.; Morgan Gaylon D.; Baumann Paul A.; Dotray Peter A.; Manuchehri Misha R.; Jones Andrea; Grey Timothy L.; Webster Theodore M.; Davis Jerry W.; Whitaker Jared R.; Roberts Phillip M.; Snider John L.; Porter Wesley M.
Source:
Weed technology 2015 v.30 no.3 pp. 601-610
ISSN:
0890-037X
Subject:
2,4-D; Gossypium hirsutum; bolls; corn; cotton; cultivars; developmental stages; epinasty; leaves; soybeans; vegetative growth; weeds
Abstract:
... The anticipated release of Enlistᵀᴹ cotton, corn, and soybean cultivars likely will increase the use of 2,4-D, raising concerns over potential injury to susceptible cotton. An experiment was conducted at 12 locations over 2013 and 2014 to determine the impact of 2,4-D at rates simulating drift (2 g ae ha⁻¹) and tank contamination (40 g ae ha⁻¹) on cotton during six different growth stages. Growth ...
DOI:
10.1614/WT-D-15-00191.1

30. Cotton yield and fiber quality affected by row spacing and shading at different growth stages

Author:
Fábio R. Echer; Ciro A. Rosolem
Source:
European journal of agronomy 2015 v.65 pp. 18-26
ISSN:
1161-0301
Subject:
Gossypium hirsutum; bolls; cloud cover; cotton; crop yield; cultivars; fiber quality; flowering; fruit maturity; irrigation; phenology; photosynthesis; plant density; planting date; row spacing; shade; shade tolerance; sowing date
Abstract:
... Carbohydrate production and reproductive structure development in cotton (Gossypium hirsutum) depends on light availability, a determinant of cotton yield. Light availability is decreased by cloud cover or self-shading when cotton plants are grown in dense populations. The objective of this study was to evaluate the effects of shading during cotton growth and its interactions with plant row spacin ...
DOI:
10.1016/j.eja.2015.01.001

31. Changes in the cell wall and cellulose content of developing cotton fibers investigated by FTIR spectroscopy

Author:
Noureddine Abidi; Luis Cabrales; Candace H. Haigler
Source:
Carbohydrate polymers 2014 v.100 pp. 9-16
ISSN:
0144-8617
Subject:
cultivars; flowering; lint cotton; cell walls; Gossypium hirsutum; vibration; flowers; cellulose; Fourier transform infrared spectroscopy; planting; reflectance; bolls; greenhouses
Abstract:
... Fourier transform infrared (FTIR) spectra of cotton fibers harvested at different stages of development were acquired using Universal Attenuated Total Reflectance FTIR (UATR-FTIR). The main goal of the study was to monitor cell wall changes occurring during different phases of cotton fiber development. Two cultivars of Gossypium hirsutum L. were planted in a greenhouse (Texas Marker-1 and TX55). O ...
DOI:
10.1016/j.carbpol.2013.01.074

32. Correlation and Path-coefficient Analyses of Lint Yield and Other Traits in Upland Cotton (Gossypium hirsutum L.)

Author:
Efrem Bechere; Linghe Zeng; Debbie Boykin
Source:
Journal of crop improvement 2014 v.28 no.6 pp. 852-870
ISSN:
1542-7536
Subject:
Gossypium hirsutum; bolls; breeding; correlation; cultivars; germplasm; leaves; lint cotton; lint yield; planting; seeds; Mississippi
Abstract:
... Cotton breeders should have knowledge of traits that affect lint yield before embarking on a breeding program. Twelve diverse germplasm lines of upland cotton were used to investigate the effects of lint turnout, days to maturity, boll weight, number of bolls/plant, plant height, number of seeds/boll, boll width, boll length, seed index, number of locs/boll, number of fibers/seed, fiber density, o ...
DOI:
10.1080/15427528.2014.955621

33. Genomic regions underlying agronomic traits in linseed (Linum usitatissimum L.) as revealed by association mapping

Author:
Braulio J. Soto‐Cerda; Scott Duguid; Helen Booker; Gordon Rowland; Axel Diederichsen; Sylvie Cloutier
Source:
Journal of integrative plant biology 2014 v.56 no.1 pp. 75-87
ISSN:
1672-9072
Subject:
additive effect; cultivars; flowering; alleles; breeding lines; flax; lodging; seeds; Linum usitatissimum; kinship; branching; linseed; models; principal component analysis; agronomic traits; multivariate analysis; prairies; bolls; climate
Abstract:
... The extreme climate of the Canadian Prairies poses a major challenge to improve yield. Although it is possible to breed for yield per se, focusing on yield‐related traits could be advantageous because of their simpler genetic architecture. The Canadian flax core collection of 390 accessions was genotyped with 464 simple sequence repeat markers, and phenotypic data for nine agronomic traits includi ...
DOI:
10.1111/jipb.12118
PubMed:
24138336
PubMed Central:
PMC4253320

34. Interaction effects between time and cultivar on the seasonal fluctuations of the safflower fly, Acanthiophilus helianthi (Rossi) (Diptera: Tephritidae) and its parasitoids in the south of Tehran

Author:
Zahra Dustiy; Habib Abbasipour; Alireza Askarianzadeh
Source:
Archiv für Phytopathologie und Pflanzenschutz 2014 v.47 no.10 pp. 1195-1201
ISSN:
1477-2906
Subject:
Acanthiophilus helianthi; Carthamus tinctorius; adults; bolls; crop losses; crop management; cultivars; integrated pest management; larvae; parasitism; parasitoids; pupae; seasonal variation; university research
Abstract:
... The safflower fly, Acanthiophilus helianthi is one of the most important pests of safflower in the world that every year puts a lot of loss to the crop. In order to study interaction effect between time and cultivar on seasonal fluctuations and parasitism of the safflower fly on 2012, seven safflower cultivars including Goldasht, Padideh, Zarghan, Varamin, PI, Acataria, Mec163 was cultivated under ...
DOI:
10.1080/03235408.2013.834716

35. Response of Leaf Area Index, Vegetative and Reproductive Phases of Two Cotton (Gossypium Hirsutum L.) Cultivars at Different Regimes of Irrigation Scheduling

Author:
A. Ali; T. Khalik; A. Ahmad
Source:
Cercetări agronomice în Moldova 2014 v.47 no.1 pp. 31-37
ISSN:
2067-1865
Subject:
Gossypium hirsutum; bolls; branches; cotton; cultivars; flowers; irrigation scheduling; leaf area index
Abstract:
... The experiment was conducted to investigate the effects of different regimes of irrigation schedule on various vegetative and reproductive stages of cotton crop. The results showed that irrigation effect was non significant for number of plants m-2, while I₄ treatment produced maximum number of monopodial branches 2.18, but statistically it was at par with I₃, I₅. I₄ treatment showed maximum numbe ...
DOI:
10.2478/cerce-2014-0004

36. Analysis of decision-making coefficients of three main fiber quality traits for upland cotton (Gossypium hirsutum L.)

Author:
Yongjun Mei; Wenming Hu; Shuli Fan; Meizhen Song; Chaoyou Pang; Shuxun Yu
Source:
Euphytica 2013 v.194 no.1 pp. 25-40
ISSN:
0014-2336
Subject:
Gossypium hirsutum; additive effect; bolls; branches; crossing; cultivars; decision making; fineness; genetic background; genetic correlation; genetic techniques and protocols; heterosis; hybrids; lint cotton; lint yield; micronaire; models; plant density
Abstract:
... The analysis of genetic correlations between fiber length (Len), strength (Str), micronaire, and 12 other traits was conducted using the additive (A)-dominance (D) genetic model, which considers genotype × environment interaction effects, in intraspecific upland cotton (Gossypium hirsutum L.) hybrids to effectively improve the quality of cotton cultivars in high planting density cases. Decision-ma ...
DOI:
10.1007/s10681-013-0946-7

37. Changes of sucrose metabolism in leaf subtending to cotton boll under cool temperature due to late planting

Author:
Jingran Liu; Yina Ma; Fengjuan Lv; Ji Chen; Zhiguo Zhou; Youhua Wang; Abudukeyoumu Abudurezike; Derrick M. Oosterhuis
Source:
Field crops research 2013 v.144 pp. 200-211
ISSN:
0378-4290
Subject:
air temperature; ambient temperature; biomass; bolls; branches; carbohydrate content; cotton; cultivars; developmental stages; flowers; fruiting; harvest index; leaf area index; leaves; photosynthesis; photosynthetically active radiation; planting date; relative humidity; ribulose-bisphosphate carboxylase; shoots; sucrose; sucrose synthase; Yangtze River
Abstract:
... Because reproductive growth could be influenced by sucrose metabolism of major source leaf (leaf subtending to cotton boll, LSCB), we hypothesized that decreased temperatures under field conditions would limit morphology and biomass distributions of the whole cotton plant by decreasing photosynthesis of LSCB and inhibiting sucrose metabolism in LSCB. To address this hypothesis, two cotton cultivar ...
DOI:
10.1016/j.fcr.2013.02.003

38. Comparing Acala Defoliation Timings with Yield and Quality

Author:
Steven D. Wright; Robert B. Hutmacher; Gerardo Banuelos; Bruce A. Roberts; Daniel S. Munk; Katherine A. Wilson; Sonia I. Rios; Kelly A. Hutmacher; Mark P. Keeley; Jonathan F. Wrobles
Source:
Crop management 2013 v.12 no.1 pp. -
ISSN:
1543-7833
Subject:
Gossypium hirsutum; bolls; crops; cultivars; defoliants; defoliation; developmental stages; diuron; ethephon; fiber quality; growers; harvest date; high volume instruments; lint cotton; lint yield; rain; thidiazuron; California; Southeastern United States
Abstract:
... Chemical defoliation is a necessary pre-harvest practice in cotton (Gossypium hirsutum L.) production in California, and all harvest aid efforts require proper timing to preserve cotton lint yield and quality. Generally, cotton growers are advised to begin defoliation as early as possible, but not so early that they cause yield and quality loss. In order to have confidence in this final pre-harves ...
DOI:
10.1094/CM-2013-0123-01-RS

39. Construction of genetic linkage map with chromosomal assigment and quantitative trait loci associated with some important agronomic traits in cotton

Author:
Sami S. Adawy; Ayman A. Diab; Mohamed A.M. Atia; Ebtissam H.A. Hussein
Source:
GM crops & food 2013 v.4 no.1 pp. 36-49
ISSN:
2164-5701
Subject:
Gossypium; agronomic traits; amplified fragment length polymorphism; bolls; breeding programs; chromosome mapping; cotton; cultivars; expressed sequence tags; flowering time; genetic markers; genetically modified plants; genomics; genotype; hybrids; linkage groups; loci; marker-assisted selection; microsatellite repeats; oilseed crops; parents; plant height; quantitative trait loci; random amplified polymorphic DNA technique
Abstract:
... Cotton is the world’s leading natural fiber and second most important oilseed crop and has been a focus of genetic, systematic and breeding research. The genetic and physiological bases of some important agronomic traits in cotton were investigated by QTL mapping through constructing of genetic map with chromosomal assignment. A segregating F2 population derived from an interspecific cross (G. bar ...
DOI:
10.4161/gmcr.23287

40. Effect of row spacing on the yield of cotton cultivars

Author:
M.B. Jahedi; F. Vazin; M.R. Ramezani
Source:
Cercetari agronomice in Moldova 2013 v.46 no.4 pp. 31-38
ISSN:
2067-1865
Subject:
Gossypium hirsutum; bolls; cotton; cropping systems; cultivars; fiber quality; herbicide resistance; lint yield; production costs; row spacing; weed control
Abstract:
... Modern cotton (Gossypium hirsutum L.) cultivars with herbicide resistance have rejuvenated an interest in narrow row cotton production, primarily because of the reduction of weed control problems encountered in the past with narrow row systems. While the primary goal of narrow row cotton is to reduce production costs, an agronomic and physiological evaluation of this cropping system is also needed ...
DOI:
10.2478/v10298-012-0101-y

41. Genetic effects and heterosis of within-boll yield components in upland cotton (Gossypium hirsutum L.)

Author:
Feiyu Tang; Weujun Xiao
Source:
Euphytica 2013 v.194 no.1 pp. 41-51
ISSN:
0014-2336
Subject:
Gossypium hirsutum; additive effect; bolls; breeding lines; crossing; cultivars; genetic improvement; genetic variance; genotype-environment interaction; heterosis; lint cotton; lint yield; models; oils; parents; phenotypic correlation; progeny; seed yield; seeds; variance; yield components; China
Abstract:
... Within-boll yield components are the most basic contributors to lint and seed yield of cotton (Gossypium hirsutum L.), which is a major source of natural fiber and edible oil throughout the world. Little information is available on genetic effects and heterosis of these traits in cotton. Three cotton cultivars and six breeding lines differing in within-boll yield components were used for this stud ...
DOI:
10.1007/s10681-013-0958-3

42. Multiple Irrigation Levels Affect Boll Distribution, Yield, and Fiber Micronaire in Cotton

Author:
Chase Snowden; Glen Ritchie; Justin Cave; Wayne Keeling; Nithya Rajan
Source:
Agronomy journal 2013 v.105 no.6 pp. 1536-1544
ISSN:
0002-1962
Subject:
Gossypium hirsutum; bolls; branches; cotton; cultivars; drought; fruiting; heat; irrigation rates; micronaire; High Plains (United States); Texas
Abstract:
... The boll distribution characteristics of upland cotton (Gossypium hirsutum L.) cultivars are related to cotton maturity and can interact with environment and management practices to determine yield and fiber quality. The boll distributions of six cotton cultivars under four irrigation levels were compared in 2011 and 2012 on the Texas High Plains. In 2011, a year of severe drought and heat, all cu ...
DOI:
10.2134/agronj2013.0084

43. Single and Multiple In-Season Measurements as Indicators of At-Harvest Cotton Boll Damage Caused by Verde Plant Bug (Hemiptera: Miridae)

Author:
Brewer Michael J.; Armstrong J. Scott; Parker Roy D.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1310-1316
ISSN:
0022-0493
Subject:
Creontiades; Gossypium hirsutum; bolls; cotton; cultivars; insects; models; pest monitoring; plant damage; plant response; regression analysis; Texas
Abstract:
... The ability to monitor verde plant bug, Creontiades signatus Distant (Hemiptera: Miridae), and the progression of cotton, Gossypium hirsutum L., boll responses to feeding and associated cotton boll rot provided opportunity to assess if single in-season measurements had value in evaluating at-harvest damage to bolls and if multiple in-season measurements enhanced their combined use. One in-season v ...

44. Cloning and Expression Studies of Novel Small RNAs in Tetraploid Cotton

Author:
Mingxiong Pang; Stephen F. Hanson; Jinfa Zhang
Source:
Plant molecular biology reporter 2012 v.30 no.3 pp. 710-718
ISSN:
0735-9640
Subject:
cultivars; amplified fragment length polymorphism; lint cotton; complementary DNA; plant growth control; Gossypium hirsutum; developmental stages; expressed sequence tags; tetraploidy; gene expression; microRNA; cDNA libraries; gene expression regulation; genetic polymorphism; bolls
Abstract:
... Small RNAs are a group of non-coding RNAs that downregulate gene expression in a sequence-specific manner to control plant growth and development. The objective of the present study was to clone and characterize several small RNAs in cotton. To identify small RNAs that are involved in the development of cotton bolls and fibers, we generated cDNA libraries from cotton bolls at 13 days post-anthesis ...
DOI:
10.1007/s11105-011-0379-1

45. Genetic effects of nine Gossypium barbadense L. chromosome substitution lines in top crosses with five elite Upland cotton G. hirsutum L. cultivars

Author:
Johnie N. Jenkins; Jack C. McCarty; Jixiang Jr.; Russell Wu; David Hayes
Source:
Euphytica 2012 v.187 no. pp. 161-173
ISSN:
0014-2336
Subject:
Gossypium barbadense; Gossypium hirsutum; additive effect; additive gene effects; agronomic traits; alleles; bolls; chromosome substitution; chromosomes; color; cultivars; dominance (genetics); genetic techniques and protocols; hybrids; interspecific hybridization; introgression; lint cotton; lint yield; micronaire; parents; reflectance; substitution lines; variance
Abstract:
... Crosses between Gossypium barbadense L and Gossypium hirsutum L. (Upland cotton) have produced limited success in introgressing fiber quality genes into the latter. Chromosome substitution lines (CSBL) have complete chromosomes or chromosome arms from G. barbadense, line 3-79, substituted for the corresponding chromosome or arms in G. hirsutum in a near isogenic background of TM-1. We top crossed ...
Handle:
10113/55546
DOI:
10.1007/s10681-011-0580-1

46. Germplasm for genetic improvement of lint yield in Upland cotton: genetic analysis of lint yield with yield components

Author:
Linghe Zeng; Jixiang Wu
Source:
Euphytica 2012 v.187 no.2 pp. 247-261
ISSN:
0014-2336
Subject:
Gossypium hirsutum; additive effect; bolls; crossing; cultivars; experimental design; genetic improvement; genetic techniques and protocols; germplasm; hybrids; linear models; lint cotton; lint yield; parents; phenotypic variation; seeds; variance; yield components
Abstract:
... Determination of genetic effects for lint yield and yield components in cotton (Gossypium hirsutum L.) germplasm is critical for its utilization in breeding programs. This study was designed to apply the conditional approach and an additive and dominant model to analyze genetic effects for lint yield and yield components. Forty-eight F2 populations derived from crosses between four existent Upland ...
DOI:
10.1007/s10681-012-0708-y

47. Germplasm for genetic improvement of lint yield in Upland cotton: genetic analysis of lint yield with yield components.

Author:
Linghe Zeng; Jixiang Wu
Source:
Euphytica 2012 v.187 no. pp. 247-261
ISSN:
1573-5060
Subject:
Gossypium hirsutum; additive effect; bolls; control components; crossing; cultivars; experimental design; genetic improvement; genetic techniques and protocols; germplasm; hybrids; linear models; lint cotton; lint yield; parents; phenotypic variation; seeds; variance; yield components
Abstract:
... Determination of genetic effects for lint yield and yield components in cotton (Gossypium hirsutum L.) germplasm is critical for its utilization in breeding programs. This study was designed to apply the conditional approach and an additive and dominant model to analyze genetic effects for lint yield and yield components. Forty-eight F(2) populations derived from crosses between four existent Upla ...
Handle:
10113/57456
DOI:
DOI 10.1007/s10681-012-0708-y

48. Response of cotton fiber quality to the carbohydrates in the leaf subtending the cotton boll

Author:
Gao Xiangbin; Wang Youhua; Zhou Zhiguo; Derrick M. Oosterhuis
Source:
Zeitschrift für Pflanzenernährung und Bodenkunde 2012 v.175 no.1 pp. 152-160
ISSN:
1436-8730
Subject:
Gossypium hirsutum; bolls; chlorophyll; correlation; cultivars; fiber quality; fineness; free amino acids; leaves; lint cotton; nitrogen; nitrogen content; starch; sucrose
Abstract:
... This study investigated the effect of nitrogen (N) fertilization on leaf and boll N and carbohydrate concentrations in the development of fiber quality. A two‐year field study was conducted with two cotton (Gossypium hirsutum L.) cultivars, Kemian 1 (average fiber strength 35 cN tex–1) and NuCOTN 33B (average fiber strength 32 cN tex–1) at five (2008) and four (2009) N levels. The relationship bet ...
DOI:
10.1002/jpln.201100050

49. The effects of the relative humidity on the insecticidal expression level of Bt cotton during bolling period under high temperature

Author:
Yuan Chen; Yujin Wen; Xiang Zhang; Dehua Chen
Source:
Field crops research 2012 v.137 no. pp. 141-147
ISSN:
0378-4290
Subject:
Bacillus thuringiensis; amino acid composition; bolls; cotton; cotton industry; cultivars; farms; field experimentation; insecticidal proteins; leaf protein; leaves; nitrogen metabolism; protein content; relative humidity; temperature; toxins; universities
Abstract:
... Bt transgenic cotton has shown unstable insect-resistance during boll period in cotton industry. The objective of this study was to investigate the effect of the relative humidity on the leaf Bt protein content of two different types of Bt cotton cultivars under high temperature condition. During the 2009 and 2010 cotton growth seasons, the leaves insecticidal protein concentrations of the two Bt ...
DOI:
10.1016/j.fcr.2012.08.015

50. A molecular approach to combat spatio-temporal variation in insecticidal gene (Cry1Ac) expression in cotton

Author:
Allah Bakhsh; Saima Siddique; Tayyab Husnain
Source:
Euphytica 2012 v.183 no.1 pp. 65-74
ISSN:
0014-2336
Subject:
Bacillus thuringiensis; Gossypium arboreum; anthers; bolls; corolla; cultivars; field experimentation; gene expression; genes; leaves; plant age; ribulose-bisphosphate carboxylase; roots; seed cotton; toxins
Abstract:
... Spatio-temporal expression of an insecticidal gene (Cry1Ac) in pre existing transgenic lines of transgenic cotton was studied. Seasonal decline in expression of Cry1Ac differed significantly among different cotton lines tested in the field conditions. The leaves of the Bt cotton plants were found to have the highest levels of toxin expression followed by squares, bolls, anthers and petals. Express ...
DOI:
10.1007/s10681-011-0497-8