Genetic Parameters in Seed Yield Components of Cowpea (Vigna unguiculata (L.) Walp.)

The phenotypic coefficient of variation was found to be higher than the genotypic coefficient of variation for all the traits studied. The highest magnitude of GCV was observed for pod weight followed by number of pod clusters plant-1, seed yield plant-1, 100 seed weight, pod length, number of pods cluster-1 and number of pods plant-1. All the characters considered except number of primary branches plant-1, number of pods plant-1 and seed yield plant-1 recorded high estimates of heritability. High heritability coupled with high genetic advance was observed for days to 50 per cent flowering, length of main stem, number of pod clusters plant-1, number of pods cluster-1, pod weight, pod length, pod girth, number of seeds pod-1, and 100 seed weight.