Combining ability in mungbean (Vigna radiata (L.) Wilczek) I. Agronomic traits.

摘要

Combining ability in mung bean (genotypes NM 92, Var. 6601, NM 89, VC1560D, VC3902A and ML-5) was studied in 15 quantitative traits through a 6 x 6 diallel cross. Both additive and non-additive gene effects were found conditioning the inheritance ofnodes of the first peduncle, clusters per plant, clusters on main stem and branches, pods per plant, 1000-seed weight, grain yield per plant, biomass and harvest index. The additive gene action was significant for nodes on main stem, average internodallength, branches per plant, pods per cluster, pod length and seeds per pod. The predominance of additive genetic variation was observed in all traits. For grain yield and yield components, the best combiners were VC3902A, VC1560D and ML-5, while the bestcombinations were the crosses VC3902A x ML-5, VC1560D x ML-5 and NM 92 x VC1560D.