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Asian Journal of Plant Sciences
Year: 2006  |  Volume: 5  |  Issue: 2  |  Page No.: 170 - 173

Nature of Gene Action in Barley (Hordeum vulgare L.)

M.M. Rohman, R. Sultana, R. Podder, A.T.M. Tanjimul Islam, M. Kamrul Islam and M.S. Islam    

Abstract: A 6 x 6 diallel cross (excluding reciprocal) of barley (Hordeum vulgare L.) dictated both additive and non-additive components were important but dominance components were more predominant than additive components in controlling the inheritance of all the characters under study. The asymmetric distribution of dominant and recessive alleles at loci was found for all the characters. At least 3 groups of genes were found in controlling the dominance in yield. The highest heritability (89%) in narrow sense was observed in 1000 grain weight. Vr-Wr graph indicated over dominance and genetic diversity among the parents.

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