Combining Ability Studies for Various Horticultural Traits in Garden Pea (Pisum sativum L.)

Assessment of Gene Action and Identification of Heterotic Hybrids for Enhancing Yield in Field Pea

“…The presence of these significant GCA effects suggests the potential for ongoing advancements in yield and its associated traits through targeted breeding efforts within the field pea. These outcomes are consistent with the conclusions drawn by Yadav et al [13], Kumar et al [40], Manjunath et al [41] and Kumar et al [42].The parents Aman and P-1297-97 displayed significant positive GCA effects for SY, indicating that these genotypes could be used as good general combiners for higher seed yield in the breeding program. In addition, GCA effects showed that genotypes P-1426, P-92-97-11, HFP-1314 and P-12-97-97 were good general combiners for early flowering; P-1426, P-1297-97 and Vikas were good general combiners for dwarf plant stature; Aman, P-1541-16 and P-92-97-11 were good general combiners for TNP and NEP; and P-1426 and Aman were good general combiners for long PL and NSP.…”

“…These findings of good combining parents for the traits concerned suggest the predominance of additive effect and additive × additive gene action [10,26]. These findings presented an improvement over earlier studies, wherein no individual parental line was identified as a strong general combiner for some yield-related traits, as indicated by Yadav et al [13], Kumar et al [40] and Manjunath et al [41]. A good combining parent leads to a higher frequency of heterotic crosses than a poor combining parent [43].…”