Genetic analysis in late cauliflower (Brassica oleracea var. botrytis L.) subjected to North Carolina Mating Design-I

Genetical studies were conducted on progenies developed in F₂ generation of an intervarietal cross PSBK-1 x KT-25 of late cauliflower (Brassica oleracea var. botrytis L.) using NCD-1. Significant differences among females in males in sets as compared to males in sets for all the traits in the study indicated substantial contribution of plants chosen as females towards the variation among progenies. Dominance variance was more pronounced than additive genetic variance for all the traits except net curd weight indicating the importance of dominant gene effects. Complete dominance was observed for gross plant weight and overdominance for stalk length, days to marketable maturity and harvest index. Narrow sense heritability was high for net curd weight. Full-sib family selection was found superior to the mass selection.