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    Genetic variability, heritability and genetic advance in cowpea (Vigna unguiculata [L.] walp)
    (Kerala Agricultural University, 1998) Sobha, P P; Abdul Vahah, M
    Genetic variability studies in thirty one genotypes of vegetable cowpea revealed significant difference for all the characters except primary branches. A wide range of phenotypic coefficient of . variation (7.4 to 56.7) was observed. High genotypic coefficient of variation was observed for pod weight (54.6) and pod yield per plant (53.1). All the characters exhibited high heritability (78% to 97%). Heritability and genetic advance were high for pod weight and yield per plant, which can be relied up on for the effective genetic improvement of cowpea.