High density planting with compact genotypes proved, as high potential system of cotton cultivation. There is a need to develop proper indices measure compactness in plant, necessitated for screening genotypes. Compactness measured using ((R× r) × √ h) was identified an efficient method, based on that NSBT 108 , PAU1 OUAT Bt 2 CICR- K 34007 and CICR-CSH 19-2 were Compact Efficiency Index (CEI 1...

A field experiment was conducted at College Farm, Agricultural College, Rajendranagar, Hyderabad, during kharif 2019-20 and 2020-21 to study the effect of genotypes integrated nutrient management practices on growth HDPS cotton. Experiment laid out in Split plot design, with two as main plots (M) nine Integrated Nutrient Management sub-plots (S). Among genotypes, Leaf Area Index (LAI), Absolute...

Cotton (Gossypium hirsutum) is an important cash crop, but high temperature during its growing season is one of the major factors that limit its productivity. This problem compels plant breeders to breed for heat tolerance, which can help to overcome this challenge. It is very important to make a comprehensive screening of heat-tolerant genotypes so that only the best are chosen. Here we report...

Abstract Background Cotton breeding programs mainly focus on improving cotton fibers, but less attention has been paid by breeders to cottonseed oil improvement. Breeding for content depended phenotypic information used select varieties with high seed content. The purpose of this study was evaluate some genotypes regarding their and other characters related fiber yield, in order acceptable leve...

This study was to estimate the GCA of the parents and SCA considered for the development of high yielding and better quality cultivars. Eleven genotypes and 28 F1 hybrids obtained by crossing 4 lines and 7 testers in line X tester mating system were sown in randomized complete block design. L X T analysis revealed significant GCA and SCA effects for all the traits except earliness. Among the pa...

Cotton is under the constant threat of leaf curl virus, which is a major constraint for successful production of cotton in the Pakistan. A total of 3338 cotton genotypes belonging to different research stations were screened, but none were found to be resistant against the Burewala strain of cotton leaf curl virus (CLCuV). We explored the possibility of transferring virus-resistant genes f...

Ramulosis is one of the most aggressive diseases in cotton, and understanding the genetic control of its resistance is imperative for selecting superior cotton genotypes in breeding programs. This study analyzed the inheritance pattern of this resistance using chi-square goodness-of-fit tests to determine the phenotypic proportions of the F2 generation, and a mixed inheritance approach to joint...

Cotton has lost many ancestral defensive traits against key invertebrate pests. This is suggested by the levels of resistance to some pests found in wild cotton genotypes as well as in cultivated landraces and is a result of domestication and a long history of targeted breeding for yield and fiber quality, along with the capacity to control pests with pesticides. Genetic modification (GM) allow...

Drought stress is an inevitable factor that disturbs the production of plants by altering morphological, physiological, biochemical, and molecular functions. Breeding for drought tolerance requires a complete understanding factors controlling stress-responsive pathways. The plant responds to adopting four mechanisms: avoidance, escape, tolerance, recovery. Traditional plant-breeding tools have ...