Combining ability analysis for yield and yield components in mungbean [Vigna radiata (L.) Wilczek]

Abstract

Combining ability analysis for yield and yield components of mungbean [Vigna radiata (L.) Wilczek] was attempted using an 8 x 8 diallel mating system both in F1 and F2 generations. Both gca and sca mean squares were significant for all the eleven characters in F1 and F2 generations, former being more pronounced for clusters per plant, pods per cluster, pods per plant, pod length, seeds per pod, 100-seed weight and seed yield per plant in F1 and for all the characters except days to maturity, seeds per pod and 100-seed weight in F2. The parent K 851 was a good general combiner for seed yield per plant, days to maturity, plant height, primary branches per plant, clusters per plant, pods per plant and seeds per pod in both generations, while Pant-M 4 was good general combiner for seed yield per plant, plant height, pods per cluster and pods per plant over generations. Parents RMG 62 and Asha were the best combiners for early flowering. GM 4 had good general combining ability for seed yield in F1, but for pod length and 100-seed weight in F1 and F2. The crosses showing high sca effects for seed yield also had significant and positive effects for at least two important yield components.

Genetic Analysis in Grain Legumes [Vigna radiata (L.) Wilczek] for Yield Improvement and Identifying Heterotic Hybrids

“…These findings provide proof of the closeness of a highly significant amount of genetic variability among the mungbean parents and their respective hybrids (F 1 ), which may encourage genetic improvement utilizing such genetic pools of mungbeans. These outcomes were in agreement with those reported by Latha et al [11], Kumar et al [42], Sopan et al [13], and Viraj et al [34]. The mean square of general combining ability (GCA) and specific combining ability (SCA) were significant for all the characters.…”

“…Several professionals have used the combining ability to analyze the genetic impact and genetic value of parents in various crops. The findings were well matched with earlier publications [11][12][13]34]. Combining ability and heterosis has been successfully used to reproduce mungbeans [11][12][13].…”

“…Thus, the significant assessments of both GCA and SCA variances indicated that both the additives and nonadditive nature of gene actions were engaged in controlling these characters in studied mungbean genotypes. These outcomes affirmed those discoveries by Reddy et al [33] Nath et al [44], Viraj et al [34], and Sopan et al [13]. The assessments of differences may be because of higher general combining ability than the specific combining ability for all the characteristics except plant height and seeds per pod brought up to be the dominance of non-additive gene effects in the outflow of these characters.…”

“…The research of combining ability in diallel patterns is beneficial since it elucidates the nature and magnitude of different types of gene activities [33]. The majority of diallel investigations on gene activity and combining ability in mungbeans have shown a high prevalence of variability due to their general combining ability (GCA) [34]. The impact of the GCA is limited by additive genetic interactions, while the SCA effect is constrained by non-additive genetic interactions [35].…”

Elucidation of Nature of Gene Action and Combining Ability Associated with Economic Traits in Greengram [Vigna radiata (L.) Wilczek]

“…and Viraj et al (2020). On contrary,Latha et al (2018) reported comparatively higher additive variance for branches per plant andNath et al (2018) for days to 50% flowering, primary branches, clusters per plant and seed yield/plant in greengram.…”