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 study was conducted in bread wheat (Triticum aestivum L. em. Thell.) to estimate heterosis for fifteen quantitative traits using a 10 × 10 half-diallel (excluding reciprocals), comprising 45 F?s, 10 parents, and two standard checks, evaluated across three environments during Rabi 2020-21. Analysis of variance revealed significant genotypic differences for all traits, and pooled analysis (11 traits) confirmed significant environmental influence on heterosis expression. For grain yield per plant, heterosis over the better parent was expressed by 8, 8, 5, and 10 crosses in E1, E2, E3, and pooled analysis, respectively. MP1203 × DBW187 showed the highest heterosis in E1, E3, and pooled data, while Raj4238 × DBW187 was superior in E2. Economic heterosis over the standard check ‘Sonalika’ was recorded in 1, 8, 8, and 8 crosses, with Raj4238 × Raj3077 (E1), HD3086 × WR544 (E2, pooled), and HI1544 × Raj4079 (E3) exhibiting maximum values. For biological yield per plant, 18-21 crosses showed better parent heterosis, led by MP1203 × WR544, while 23-29 crosses surpassed the standard check, with HI1544 × WR544 and HD3086 × Raj4079 being most promising. Five crosses, HD3086 × WR544, Raj4238 × WR544, Raj4238 × Raj3077, HD3086 × Raj4079, and Raj4238 × Raj4079, consistently combined high yield and economic heterosis with desirable yield traits, indicating strong potential for commercial exploitation and wheat improvement programmes.
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