Heritability and Selection Response in Segregating Generations of Upland Cotton (Report‪)‬

Byline: Z. A. Soomro, M.B. Kumbhar, A.S. Larik, M. Imran and S.A. Brohi ABSTRACT: Heritability (b.s), genetic advance, phenotypic and genotypic vari- ance for different quantitative traits is important in determining the effective- ness of selection. In this study the potential effectiveness of selection in parents and their F 2 and F 3 progenies of Gossypium hirsutum for plant height, sympodia/ plant, bolls/plant, boll weight, seed index and seed cotton yield/plant was deter- mined. It was found that all the populations alongwith parents differed signifi- cantly (P 0.01) and exhibited genetic variability among the genotypes for all the traits except sympodia/plant. Genetic parameters computed through variance com- ponents method show that all the traits were highly heritable in F 2 and F 3 genera- tions except sympodia/plant, indicating quantitative pattern of inheritance, of- fering better chances of selection for these traits in F 2 and F 3 generations.