National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation was undertaken with the objectives to assess the magnitude of heterosis and combining ability effects of 35 hybrids resulted from Line x Tester mating design involving seven lines and five testers parents along with the standard check (GHB 558). The highly significant analysis of variance for parents and hybrids among all traits revealed that, the existence of appreciable amount of genetic variability in the experimental material. The analysis of variance for combining ability revealed that specific combining ability variance for m x f interaction were highly significant for all characters. The magnitude of sca variances was higher than the gca variances for all the characters. This indicated non-additive gene action in the inheritance of these traits. The female ICMA 96222 had high per se performance and good general combing ability for days to flowering, days to maturity, ear head length, test weight, grain yield per plant, harvest index and protein content. The cross ICMA 06777 x 18805 R had good x average combiner parents, high per se performance, significant positive heterobeltiosis and standard heterosis and positive specific combining ability effect for grain yield per plant, test weight, ear head length and harvest index. The cross ICMA 96222 x 18488 R had good x good combiner parent, significant positive specific combining effect for grain yield per plant test weight, ear head length and protein content.
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