Heterosis studies for yield and yield components in greengram [Vigna radiata (L.) wilczek]

Abstract

Twenty one hybrids of greengram along with their seven parental lines in 7 x 7 half diallel fashion excluding reciprocal crosses were studied to assess the extent of heterotic effects over mid, better parent and check for yield and ten component characters. Out of 28 F1 hybrids, four crosses viz., Utkarsha x TM-96-2, Phule –M-605-21x TMB-146, Phule-M-402-1 x BM-2003-2 and Phule-M-402-1 x TMB-146 showed superior per se performance with significant positive heterosis for seed yield and most of the yield contributing characters. Based on heterotic studies, the best direct yield contributing character were pods per cluster, pods per plant, pod length, seeds per pod and 100 seed weight. These hybrids could be utilized for developing high yielding mungbean cultivars.