Variability and interrelation analysis in cowpea [Vigna unguiculata (L.) Walp.] Genotypes

Abstract

The current experimental trial was conducted to draw out the informations on different variability parameters, correlation and path coefficient for 12 attributes in thirty cowpea genotypes. Analysis of variance showed appreciable and significant genetic variability among the genotypes for all the traits under present study. Phenotypic and genotypic coefficient of variation along with heritability and genetic advance as per cent of mean (genetic gain) were reported high for traits like number of pods per plant, harvest index, seed yield per plant and plant height. Plant height, number of pods per plant, harvest index and number of seeds per pod were significantly and positively associated with seed yield and also contributed directly towards seed yield.