Journal of Genetics, Genomics and Plant Breeding

ISSN (Online) : 2581-3293


Archive Issue

1 (1) 2017, AUGUST,2017

Pages: 21-27

Combining ability studies for seed yield related attributes and quality parameters in bread wheat (Triticum aestivum L.)

Author: Ekhlaque Ahmad, Moin Akhtar, Saurabh Badoni and J. P. Jaiswal

Category: Plant breeding

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Abstract:

The present study was carried out during 2008-09 and 2009-10 at N.E. Borlaug Crop Research Centre of G. B. Pant University of Agriculture and Technology, Pantnagar to obtain information about performance of wheat genotypes, to assess the combining ability for yield, and yield contributing traits along with quality parameters of wheat. Twenty eight hybrids were synthesized in a 8 × 8 diallel fashion excluding reciprocals. The purpose of the study was to identify and select superior parents and best hybrid combinations on the basis of estimates of general and specific combining abilities. The analysis of variance revealed that the genotypes were highly significant for all the characters studied. The results revealed that non-additive genetic variance played a predominant role in the inheritance of most of the traits. The best combinations mostly involved high × low and low × low general combiners for the characters under study. On the basis of gca effects, 3 parents, UP 2754, DBW 17 and UP 2696 were found good general combiners for grain yield and quality traits. BL 3065/DBW 16, BL 3065/ UP 2754 and BL 3065/UP 2696 were the best specific crosses for grain yield and its contributing traits.

Keywords: Bread wheat, gca and sca effects, combining ability, gene action