Vol. 7, Issue 2 (2019)
Heterosis and combining ability analysis for various morphological traits in rice hybrids
Author(s): Neha Dhirhe, Prabharani Chaudhari, Deepak Gauraha and Ambika Tandon
Abstract: Combining ability and heterosis were conducted on 24 F1 hybrids along with eleven rice genotypes to identify the inheritance pattern of some morphological traits for selection of superior rice genotypes. The experiment was conducted according to line x tester mating design. Crosses R-1700-308-3-170-1 and R-1779-321-1-112-1 were identified as good general combiner for grain yield per plant. Crosses viz., IR 58025A/R-1700-30803-170-1, IR79156A/R-1674-1823-2-1189-1, IR79156A/Reg-1649 and CRMS 31A/R-1892-486-151-1 were identified as good specific combiner for grain yield per plant. The cross IR 58025A/R-1700-308-3-170-1 was identified as promising hybrids on the basis of mean performance, heterosis estimation, GCA effects (of their corresponding parents) and SCA effects for grain yield per plant. In heterosis, among 24 hybrids, 11 crosses viz. IR79156A/R-1779-321-1-112-1, IR79156A/R-1892-486-151-1,IR79156A/R-2093-1536-1-660-1,IR79156A/AP-16, IR79156A/AP-18,CRMS31A/R-1700-308-3-170-1,CRMS31A/R-1779-321-1-112-1,CRMS31A/R-1892-486-151-1, CRMS31/R-2093-1536-1-660-1, CRMS31A/AP-16 and CRMS31A/AP-18, showed significant heterosis (over both mid) and IR58025A/ R-1700-308-3-170-1, IR58025A/ R-1779-321-1-112-1, IR58025A/ R-2093-1536-1-660-1, IR58025A/AP-16, CRMS31A/R-1892-486-151-1, CRMS31/R-2093-1536-1-660-1, were showed significant heterosis for grain yield and yield related traits. One cross IR 58025A/R-1700-308-3-170-1 was identified as promising hybrid.
Pages: 88-96 | 536 Views 58 Downloads
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How to cite this article:
Neha Dhirhe, Prabharani Chaudhari, Deepak Gauraha, Ambika Tandon. Heterosis and combining ability analysis for various morphological traits in rice hybrids. Int J Chem Stud 2019;7(2):88-96.
