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Estimates of Genetical Parameters in Barley by Using Jinks - Hyman Method | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 14, Issue 2, 2009, Pages 133-140 | ||
| Abstract | ||
| Eleven varieties of barley and their F2 dialel hybrids were used to study : Maturity time , number of spikes , length spike , number of grains per spik , grain yield and protein content. The results indicated that additive genetic variance was significant for all the studied characters, exept spike lenghth and protein contents. The dominance genetic variance was significant for all characters and its values were greater than additive variance for the studied characters and the summation dominance effect of heterozygous loci H2 was significant for the number of grains per spike only, this indicates the presence of an accumulated dominance effect of heterozygous loci on these characters , the valves of average degree of dommance showed over dominance effect controlled all characters , and (K) values indicate the presence of one parir of dominant genes that control all characters , the heritability , in the narrow sense was high for all studied characters exept the spike length. | ||
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