Correlation and Path Coefficient Analysis in Rainfed Mung Bean Genotypes [Vigna radiata (L.) Wilczek)

Abstract

Correlation and path analysis was carried out using sixteen genotypes of mung bean for eight component characters including seed yield. Field experimental was laid out under a randomized block design with three replications; observation was recorded on ten plants were selected at random from each plot for plant height, pod length, number of seeds per pod, test weight, seed yield per plot and seed yield per hectors whereas for days to 50% flowering and days to maturity data were recorded on whole plot basis among the genotypes of mung bean. The plant height, pod length and test weight had positive correlation with seed yield both at genotypic and phenotypic levels. Days to flowering, days to maturity and no. of seeds per pod had negative correlation with seed yield both at genotypic and phenotypic levels. Path analysis showed positive and high direct effect of days to maturity, pod length, seed yield per hectors and negative & high direct effect of days to flowering, plant height, test weight, whereas indirect effects of other component characters through these characters towards seed yield per plot. Hence, these traits should be given more emphasis while selecting genotypes for yield improvement in mung bean.