Combining ability studies in greengram (Vigna Radiata (L.) Wilczek.

ABSTRACT

Combining ability studies indicated predominant role of non-additive gene action for the inheritance of the characters viz., plant height, clusters per plant, pods per plant, pods per cluster, pod length, seeds per pod, 100 seed weight, protein content and grain yield per plant. However, additive gene action was found to be playing a major role in respect of days of 50 per cent flowering and days to maturity. Overall examination of gca and sca effects showed Pusa-105, RMG-275, LGG-460 and ML-267 as the best general combiners and the crosses COGG-2 x LGG 410, RMG 275 x LGG 410, LGG 460 x LGG 410 and Pusa 105 x PDM 89-221 as the best cross combinations for some of the characters studied. Hence, it is suggested that these crosses are to be carried for further generations for the improvement of grain yield in greengram.