Vol. 12, Issue 10 (2023)

Author(s):
DS Shailaja, Basavaraj D Biradar, Ishwarappa S Katageri, BN Aravind Kumar and SS Chandrashekhar

Abstract:
A total of 721 F₂ plants derived from the cross, Fuzzy-linted (FL) x Fuzzy-lintless (Fl) isogenic lines of G. herbaceum were evaluated to study the variability parameters in yield and seven yield contributing traits. The phenotypic coefficient of variation (PCV) was slightly higher in magnitude than the genotypic coefficient of variation (GCV) for all characters studied indicating the meagre influence of environment over the expression of the traits studied. High phenotypic and genotypic coefficients of variation were obtained for number of monopodia per plant, number of sympodia per plant, number of bolls per plant, boll weight, seed cotton yield per plant, ginning outturn and lint index. Medium PCV and low GCV values were observed for the trait, seed index. High heritability was observed in traits viz., number of sympodia per plant, number of bolls per plant, seed cotton yield per plant, seed index, ginning outturn and lint index. High heritability coupled with high genetic advance as percent over mean was observed for characters viz., number of sympodia per plant, number of bolls per plant, seed cotton yield per plant, ginning outturn and lint index indicating the role of the additive gene action in expressing these traits, suggesting better scope for improvement of these traits through direct selection or crossing followed by a pedigree method of selection.