Shivam Soni, Deepak Sharma and Harish Kumar Netam
Deptt. of Genetics & Plant Breeding and Deptt. of Entomology,
Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492006, Chhattisgarh
(Email: – shivamigkv@gmail.com / shivamigkv@yahoo.com)
Abstract : Combining ability in NPT lines of rice forSuper hybrid rice breeding programme has been carried out in line x tester mating design involving 3 stable CMS lines and well adapted 9 testers of different eco-geographic origin in rice. It revealed presence of predominance of non additive gene action for the characters under study. Among the lines IR 79156A was identified as a good general combiner followed by APMS 6A and IR58025A and within the tester ET 1-13, IRFAN-115, and ET 1-12, was found to be good combiner for grain yield per plant. Promising hybrids based on per se performance, SCA, GCA and Heterosis for grain yield per plant areIR79156A/ET-1-10, APMS6A/ET1-12, IR58025A/IRFAN-115, IR79156A/ET-1-1and IR79156A /TOX 981-11-2-3. These promising hybrids offer greater scope for further exploitation of hybrid vigour commercially.
Keywords : New plant type, Hybrid rice, CMS, Combining ability
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