Combining Ability Analysis for Grain Yield and Yield Attributing Traits in Maize

Combining ability of inbred lines is the ultimate factor determining future usefulness for hybrid development while, an idea about nature gene action controlling yield and contributing characters important fruitful breeding programme. Owing to this, present study was carried out investigate General Ability (GCA) Specific (SCA) effect parental hybrids respectively, deduce type regulating grain its components. The 30 single cross were generated by crossing 6 with 5 testers in line x tester mating system evaluated along four checks at three locations estimation combining effects. Significant differences observed among lines, testers, parents vs. most studied traits. non-additive predominant all traits except plant height. PFSR 145 found be good general combiner such days 50% tasselling, silking, maturity, height ear GP 329 best girth, number kernel per ear, kernels row, 100 weight yield. These could used programme accumulation favourable genes thereby improve maize desirable Hybrid 82×GP 83 specific tasseling, can further tested extensively potential early maturing hybrids.