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Pakistan Journal of Biological Sciences
  Year: 2000 | Volume: 3 | Issue: 5 | Page No.: 896-897
DOI: 10.3923/pjbs.2000.896.897
 
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Estimation of General and Specific Combining Ability in a 5 X 5 Diallel Cross of Wheat (Triticum aestivum L.)

Ahmad Rizwan and Abdus Salam Khan

Abstract:
General and specific combining ability effects and variances for five yield related characters were studied involving five parent diallel including reciprocals. Mean squares for GCA were highly significant for tillers/plant, spike length and 1000 grain weight whereas SCA effects were highly significant for spike length, grains per spike and yield per plant. Reciprocal effects for spike length were found to be highly significant. Both additive and non-additive genetic variances played important role in the inheritance of all the characters studied. The non-additive genetic variance was larger in magnitude for grain yield, number of grains per spike and spike length where as additive variance was greater in the case of number of tillers per plant, 1000-grain weight. Inqalab 91 possessed highest GCA effect for spike length and 1000-grain weight where as Pasban 90 for number of grains per spike. Cross combination Pasban 90×KTDH-6 had the highest SCA effects for number of tillers per plant, number of grains per spike and grain yield per plant.
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How to cite this article:

Ahmad Rizwan and Abdus Salam Khan, 2000. Estimation of General and Specific Combining Ability in a 5 X 5 Diallel Cross of Wheat (Triticum aestivum L.). Pakistan Journal of Biological Sciences, 3: 896-897.

DOI: 10.3923/pjbs.2000.896.897

URL: https://scialert.net/abstract/?doi=pjbs.2000.896.897

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