Genetic variability and heritability studies in cowpea (Vigna unguiculata (L.) Walp.)
Keywords:
Cowpea, variability, heritability, gene actionAbstract
Seven advanced lines along with two check varieties of cowpea were evaluated in a randomized blockdesign with three replications during summer season of 2021 over three agro-ecological zones of Kerala.Assessment of genetic variability and heritability on twelve quantitative characters over three locationsrevealed significant difference between genotypes for all the characters studied. High GCV and PCV wereobserved for grain yield per plant at two environments. Number of pods per plant, length of pod, pod weightand test weight were controlled by additive gene action. The characters days to first flowering, days to firstharvest, days to last harvest and protein content were under the influence of non additive gene action undertwo environments.References
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