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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2017 , Volume 5, Issue 5
Page No. : 995-1003
Article doi: : http://dx.doi.org/10.18782/2320-7051.2957
Heterosis and Inbreeding Depression Analysis for Yield and Its Components Traits in Bread Wheat (Triticum aestivum L. em. Thell.) Over Environments
Jyoti Yadav1, Satya Narayan Sharma1 and Shweta2
1Department of Plant Breeding and Genetics, S.K.N. Agriculture University, Jobner, Jaipur
2Department of Plant Breeding and Genetics, C.S.A.U.A.&T., Kanpur
*Corresponding Author E-mail: hortsuren@gmail.com
Received: 9.05.2017 | Revised: 18.06.2017 | Accepted: 21.06.2017
ABSTRACT
Heterosis was analyzed using a half diallel of ten parents in bread wheat (Triticum aestivum L. em. Thell.). Based on heterosis, heterobeltiosis, SCA effects and per se performance the crosses DBW 17 x WH1021 in E1; PBW 343 x DBW 17 in E2 and PBW 343 x WH 1021 in E3 emerged as good crosses for grain yield per plant. These crosses were the product of good x good, good x poor or poor x poor general combiners. The graphical and component analysis indicated partial dominance to over dominance for various characters in different sowing dates.Based on heterosis and inbreeding depression the crosses DBW 17 x DBW 621 in E1; PBW 343 x WH 1021 in E2 and DBW 17 x WH 1021 in E3 exhibited heterosis as well as heterobeltiosis and also showed high desirable inbreeding depression for grain yield per plant. The good general combiners and specific cross combinations in E3 may be used in breeding programme for high temperature tolerance.
Key words: Wheat, Heterosis, Heterobeltiosis
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782/2320-7051.2957
Cite this article:
Yadav, J., Sharma, S.N. and Shweta, Heterosis and Inbreeding Depression Analysis for Yield and Its Components Traits in Bread Wheat (Triticum aestivum L. em. Thell.) Over Environments, Int. J. Pure App. Biosci. 5(5): 995-1003 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2957
