Vol. 7, Issue 3 (2019)
Studies on combing ability of grain quality traits in hybrid rice (Oryza sativa L.)
Author(s): K Parimala, Ch. Surender Raju, AS Hari Prasad and S Sudheer Kumar
Abstract: A study was conducted to assess the combining ability of grain quality traits in rice. Sixty experimental hybrids were developed by crossing five CMS lines with twelve testers in LxT design. Analysis of variance revealed presence of significant differences among the crosses for the characters studied and it indicates the presence of high amount of variation. The line IR-79156A and tester WGL-3962 were identified as good general combiners for most of the grain quality traits viz., milling (%), head rice recovery (%), kernel length, kernel breadth, kernel L/B ratio and kernel length after cooking. The lines, IR-68897A, APMS-6A and testers NWGR-3132, RNR-15048 and RNR-2781 also combined well for some of the quality traits. The hybrids viz., IR-58025A x RNR-2781, IR-79156A x RNR-2781, IR-80555A x WGL-3962, IR-68897A x IR-83142-B-57-B, APMS-6A x NWGR-3132 and APMS-6A x RNR-15038 were found to be good specific combiners for milling (%), head rice recovery (%), kernel length, kernel breadth, kernel length after cooking and kernel elongation ratio. Grain quality analysis revealed that the lines, IR-79156A and IR-68897A and the testers WGL-3962, NWGR-3132, RNR-2781 and RNR-15038 were found to be promising and these parents could be utilized for improvement of grain quality in hybrid rice breeding programme.
Pages: 4552-4556 | 322 Views 68 Downloads
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How to cite this article:
K Parimala, Ch. Surender Raju, AS Hari Prasad, S Sudheer Kumar. Studies on combing ability of grain quality traits in hybrid rice (Oryza sativa L.). Int J Chem Stud 2019;7(3):4552-4556.