STUDIES IN THREE F2 POPULATIONS OF GREENGRAM (Vigna radiata L. Wilzeck)

Present experiment was conducted to study the frequency distribution in F2 populations of three crosses in greengram viz., VBN 2 x RIL 165, VBN 2 x RIL 169 and VRM (Gg)1 x RIL 165. In this study, observation of eight traits, the range of yield and its attributes were exposed to descriptive statics analysis to find out the distribution. The traits namely, days to first flowering, plant height, number of clusters per plant and number of pods per cluster showed positive skewed and platykurtic. It showed the presence of complimentary gene action and duplicate gene interaction. Hence, these populations must be handled with stringent selection process to achieve quick genetic gain since they are governed by large number of genes with complimentary gene action. Negative skewness and platykurtic was recorded by number of seeds per pod which is influenced by large number of genes with duplicate epistasis interaction and mild selection is adequate to get rapid genetic gain