• J. L. joshi
• S. Sugandhi
• Ajish Muraleedharan

Combining ability and heterotic potential was studied in F1 hybrids of maize inbreds with respect to grain yield and yield attributing traits using twenty one hybrids which were developed through Line × Tester mating design. The parents and their hybrids were subjected to assess the combining ability and nature of gene action governing the quantitative traits. The results revealed that the predominance of non-additive gene action was observed for all the traits. Among the parents, the overall study of gca effects suggested that parents UMI 1200, CML 421 and HKI 1025 were significant good general combiner for yield, these can be used to improve hybrids. Significant positive SCA effects were found for all the studied traits. Among the hybrids, CML 421 x UMI 1200 showed desirable standard heterosis percentage over the check hybrid vivek 23 along with good sca effects, standard heterosis and per se performance for grain yield and other important yield contributing traits, thus it can be used for commercial seed production programme.

line x tester, combining ability, heterosis, maize, yield traits

"COMBINING ABILITY AND HETEROTIC POTENTIAL FOR GRAIN YIELD AND ITS RELATED TRIATS IN MAIZE (Zea mays L.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.761-766, June-2018, Available :http://www.jetir.org/papers/JETIR1806912.pdf

"COMBINING ABILITY AND HETEROTIC POTENTIAL FOR GRAIN YIELD AND ITS RELATED TRIATS IN MAIZE (Zea mays L.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp761-766, June-2018, Available at : http://www.jetir.org/papers/JETIR1806912.pdf