Study of Genetic Variability, Character Association and Path Analysis in Greengram [Vigna radiata (L.) Wilczek]

Abstract

A set of 21 of greengram were evaluated for studying of “Study of Genetic Variability, Character Association and Path Analysis in Greengram [Vigna radiata (L.)Wilczek]”. The experiment was conducted in a Randomized Block Design with three replications during the kharif season, 2021 in the crop research farm of Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj. For all 13 characters, the analysis of variance revealed a significant difference between genotypes. A favourable and very significant link between seed yield per plant and Days to maturity and Harvest Index was found in the current study using both phenotypic and genotypic correlation coefficients. Maximum positive direct effects was depicted by Harvest Index (%), Number of seeds per pod and Plant height (cm) at both phenotypic and genotypic levels. Path analysis further revealed that direct effect of Harvest Index (%), No. of seeds per pod and Plant Height (cm) was of high magnitude. The significant indirect effect through these features also contributed to the high positive relationship of other characters with grain yield per plant (g). This suggested that the above three traits' direct and indirect effects accounted for the majority of the seed yield. As a result, these genotypes may be encouraged for cultivation as well as in next breeding programmes to create better cultivars for  sustainable agricultural production.