PJB-2023-229
Ghulam Murtaza Channa
Abstract
In this studied the parents, F1 and F2 are highly significant confirming the presence of variation among the genotypes. The parents MNH-886 and CRIS-342 recorded with highest mean performance. In F1 and F2, generally, it could be concluded that the parent IR-3701 and MNH-886 were the best combiners for many traits. SCA effects showed the excellent combinations for direct and reciprocal crosses i.e. plant height MNH-886 x CRIS-342; for no. of nodes to first fruiting branch IR-3701 x CRIS-342; for no. of days to first square MNH-886 x Bakhtwar; no. of days to 1st flower Bakhtwar x CRIS-342; for no. of sympodia plant-1 Bakhtwar x CRIS-342; for earliness index IR-3701 x Bakhtwar; for days to 1st open bolls MNH-886 x Bakhtwar; Boll maturation period Sindh-1 x CRIS-342; no. of boll at 90 days MNH-886 x Sindh-1; for no. of bolls plant-1 IR-3701 x CRIS-342; for seed yield plant-1 Sindh-1 x CRIS-342; for GOT% MNH-886 x IR-3701; staple length IR-3701 x Bakhtwar. Thus these parents, and hybrids for selection of early and yield-related traits in later generations could be utilized to the improvement of yield-related traits in short duration seasons in the cotton breeding programs under variable weather conditions for maximizing cotton production.
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