Breeding Potential of Upland Cotton for Water Stress Tolerance

Rehman, Abdul; Azhar, Muhammad Tehseen; Shakeel, Amir; Basra, S. M. A.

doi:10.21162/pakjas/17.6324

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Furthermore, σ 2 A was not significant in many cases indicating the importance of dominance or non-additive in the inheritance of these traits in these materials. Rehman et al (2017) noted predominance of non-additive genetic effects in the inheritance of the characters studied. Kannan & Saravanan (2016) found that ratio of variance due to GCA to that of SCA was less than one for all the character under study indicating importance of dominance gene effects in the inheritance of all characters.…”

Section: The Role Of Additive and Non-additive Gene Effects In The In...mentioning

confidence: 91%

Genetic Analysis of Yield and Fiber Traits in Cotton (Gossypium barbadense L.) under Normal Irrigation and Drought Stress Conditions

et al. 2022

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D ROUGHT stress is a serious abiotic stress affecting crop production in Egypt. The aim of this article was to study the gene action controlled seed cotton yield (SCY/P) and fiber properties under normal irrigation and water deficit conditions. Ten cotton genotypes (G. barbadence L.) were crossed as lines to three as testers. The parents and hybrids were evaluated in a randomized complete block design with three replications under normal and water deficit at the Agriculture Research Center, Sohag Governorate, Egypt. The two hybrids [G95 ˟ (G90 ˟ Aust.)] and [Aust. ˟ (G90 ˟ Aust.)] were the best hybrids for most studied traits and should be considered in breeding program for drought stress and normal irrigation, and the parents G.95, (G95 ˟ Aust.) and Aust. depicted their good combining ability. Mean reduction % of the parents varied greatly from 2.99 for lint % to 31.79 for SCY/P, while it varied for the hybrids from 5.11 for fiber strength to 33.93 for SCY/P. The additive (σ 2 A) and the dominance variance (σ 2 D) were larger under normal irrigation than under water stress conditions for most traits. The ratio σ 2 A/σ 2 D was less than unity for all traits indicating that the role of dominance was more important than additive effects in the inheritance of these traits. The contribution of lines was larger than that of testers and lines x testers interaction in most traits at both environments indicating the importance of selection of lines for hybridization, and selection should be delayed to later generations.

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Section: The Role Of Additive and Non-additive Gene Effects In The In...mentioning

confidence: 91%

Genetic Analysis of Yield and Fiber Traits in Cotton (Gossypium barbadense L.) under Normal Irrigation and Drought Stress Conditions

et al. 2022

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“…Water stress decreases the leaf area of cotton. For instance, Rehman et al [85] studied parents and F1 hybrids grown under three different irrigation regimes (none, deficit, and normal irrigation) and observed a reduction in leaf area under water-limited conditions. Moreover, cotton grown under drought has a lower relative water content (RWC).…”

Section: Response Of Cotton Physiological Traits Yield and Yield Components To Irrigation Regimesmentioning

confidence: 99%

Irrigation-Water Management and Productivity of Cotton: A Review

et al. 2021

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A decrease in water resources, as well as changing environmental conditions, calls for efficient irrigation-water management in cotton-production systems. Cotton (Gossypium sp.) is an important cash crop in many countries, and it is used more than any other fiber in the world. With water shortages occurring more frequently nowadays, researchers have developed many approaches for irrigation-water management to optimize yield and water-use efficiency. This review covers different irrigation methods and their effects on cotton yield. The review first considers the cotton crop coefficient (Kc) and shows that the FAO-56 values are not appropriate for all regions, hence local Kc values need to be determined. Second, cotton water use and evapotranspiration are reviewed. Cotton is sensitive to limited water, especially during the flowering stage, and irrigation scheduling should match the crop evapotranspiration. Water use depends upon location, climatic conditions, and irrigation methods and regimes. Third, cotton water-use efficiency is reviewed, and it varies widely depending upon location, irrigation method, and cotton variety. Fourth, the effect of different irrigation methods on cotton yield and yield components is reviewed. Although yields and physiological measurements, such as photosynthetic rate, usually decrease with water stress for most crops, cotton has proven to be drought resistant and deficit irrigation can serve as an effective management practice. Fifth, the effect of plant density on cotton yield and yield components is reviewed. Yield is decreased at high and low plant populations, and an optimum population must be determined for each location. Finally, the timing of irrigation termination (IT) is reviewed. Early IT can conserve water but may not result in maximum yields, while late IT can induce yield losses due to increased damage from pests. Extra water applied with late IT may adversely affect the yield and its quality and eventually compromise the profitability of the cotton production system. The optimum time for IT needs to be determined for each geographic location. The review compiles water-management studies dealing with cotton production in different parts of the world, and it provides information for sustainable cotton production.

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EVALUATION OF QUALITY PARAMETERS IN COTTON PRODUCTION (Gossypium hirsutum L.) UNDER WATER STRESS CONDITIONS

Avşar¹,

Karademır

2022

JALSE

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Decreasing water availability for cotton production has compelled researchers to engage in studies about rising water use efficiency by improving water management. The impacts of different irrigation levels on the fibre qualities of drip-irrigated cotton were evaluated in Diyarbakir, Southeast Anatolia Region of Turkiye. Three cotton varieties, ‘Stoneville 468’ (ST 468), ‘FiberMax 832’ (FM 832), and ‘Kartanesi’, and three levels of irrigation were tested in 2017 and 2018. Treatments were I 50 (50% water stress), I 75 (25% water stress), and the fully irrigated treatment I 100, which was obtained from Class-A pan evaporation. According to the two-year results of the study, water stress caused a decline in fineness, length, strength, elongation, uniformity ratio, and spinning consistency index (SCI) values of fibre, while fibre yellowness and short fibre ratio values increased. Fibre brightness was not affected by water stress. There were significant differences among varieties concerning quality parameters. FM 832 has come to the fore with regard to fibre fineness, length, strength, uniformity, yellowness, reflectance, and spinning consistency index.

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Breeding Potential of Upland Cotton for Water Stress Tolerance

Cited by 3 publications

References 11 publications

Genetic Analysis of Yield and Fiber Traits in Cotton (Gossypium barbadense L.) under Normal Irrigation and Drought Stress Conditions

Genetic Analysis of Yield and Fiber Traits in Cotton (Gossypium barbadense L.) under Normal Irrigation and Drought Stress Conditions

Irrigation-Water Management and Productivity of Cotton: A Review

EVALUATION OF QUALITY PARAMETERS IN COTTON PRODUCTION (Gossypium hirsutum L.) UNDER WATER STRESS CONDITIONS

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