Author(s):

Lav Kumar, Rajshree Gayen, Jitendra Singh and Nandan Mehta

Abstract: Eight genotypes of cauliflower were evaluated to study the magnitude of genetic variability, heritability and genetic advance. The evaluation was done for fifteen quantitative characters viz., plant height at harvest (cm), number of leaves per plant, stalk length (cm), gross curd weight (g), marketable curd weight (g), net curd weight (g), curd depth (cm), curd diameter (cm), curd size index (cm²), days to 50% curd initiation, days to 50% curd maturity, days to 1^st flowering, days to 50% flowering, harvest index (%) and curd yield (t/ha). The present study showed that PCV was higher than GCV for all the traits indicated the presence of environmental effect for traits expression. High magnitude of genotypic as well as phenotypic coefficient of variations were recorded for traits viz., net curd weight, marketable curd weight, curd yield and harvest index, curd size index and gross curd weight suggested the substantial improvement on cauliflower through selection for these traits. High heritability coupled with high genetic advance was observed for curd diameter, days to 50% curd maturity, days to 50% flowering, days to 1^st flowering, days to 50% curd initiation, curd size index, net curd weight, curd yield, marketable curd weight and gross curd weight indicating that most likely the heritability is due to additive gene effects and selection of these characters may be effective for crop improvement.

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