Correlation and genetic variation of twenty different genotypes of lablab bean, Lablab perpureus (L.) Sweet

Analysis of variance indicated highly significant differences among the genotypes in most of the characters. Phenotypic variation was greater than that of genotypic and environment variations for all the characters. The greater portion of total phenotypic variation was due to the genotypic variation. Heritability values were higher for number of inflorescence per plant followed by pod weight and number of pods per inflorescence. Maximum genetic advance expressed as percentage of mean was recorded for number of pod per inflorescence. Phenotypic and genotypic correlation coefficients were calculated for six yield contributing traits. Significant and positive genotypic correlation was noted between pod weight at harvest and pod diameter, and yield per plant; and pod weight at harvest, pod length, number of inflorescence per plant showed significant positive genotypic correlation. Yield per plant exhibited significant positive phenotypic correlation with pod length and number of inflorescence per plant.