Studies on genetic variability and character association for yield and its attributes in greengram [Vigna radiata (L.) Wilczek]
Abstract
An experiment was carried out to estimate the genetic parameters such as variability, heritability, genetic advance, character association and path analysis for twelve quantitative characters in 50 genotypes of green gram [Vigna radiata (L.) Wilczek]. The GCV for all the characters studied was less than the PCV indicating the interaction of genotype with the environment. High heritability coupled with high genetic advance as per cent of mean was observed for the number of primary branches per plant, seed yield per plant, plant height, the number of pods per plant, 100 seed weight and days to 50 per cent flowering. Character association studies revealed that the number of pods per plant, the number of clusters per plant, the number of seeds per pod, the number of primary branches per plant, plant height, days to maturity, pod length and 100 seed weight showed a positive and significant correlation with seed yield per plant. Path analysis revealed that the number of pods per plant had a high positive and direct effect on seed yield.
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