Genetic variability studies for yield and yellow mosaic virus resistance inF2 population of Mungbean Vigna radiata (L.)

Abstract

TAn investigation was carried out to assess the genetic variability of nine quantitative characters in F2 populationof the cross DGGV-2 × IPM-2-14 and to study the association of yield and its attributing traits. High to moderate level ofPCV and GCV estimates were recorded for single plant yield, number of seeds per plant, coefficient of infection, number ofclusters, number of pods per cluster, number of pods per plant, number of seeds per pod and plant height. High heritabilitycoupled with high genetic advance as per cent of mean (GAM) was observed for single plant yield, number of seeds perplant, coefficient of infection, number of pods per cluster, number of clusters, number of pods per plant, height of the plantand number of seeds per pod. Correlation studies for seed yield and its attributing traits revealed significant positivecorrelation of number of seeds per plant, number of pods per plant, number of clusters, number of pods per cluster andheight of the plant with seed yield per plant inferring that these traits strongly influenced seed yield per plant. Coefficientof infection (MYMV disease) exhibited significant negative correlation with yield and yield contributing traits. The presentfindings could be useful for establishing selection criteria for high seed yield in the mungbean breeding programme.