Genetical studies of some Egyptian and imported varieties of faba bean [Vicia faba]
1992
Bakheit, B.R. (Assiut Univ. (Egypt). Agronomy Dept.)
In a study on the genetic behavior of yield and its components and to furnish information on the nature of associations between pairs of characters in a faba bean seven-parent diallel cross without reciprocals, the results showed that both additive and nonadditive genetic effects controlled the genetic systems of all the studied traits. Additive gene effects had the main effect in inheritance of height to the first pod, but dominance gene effects played the major role in seed yield/plant. Moreover, epistatic gene effects were found in the inheritance of plant height, number of pods/plant and seed yield/plant. The parents showed unequal frequencies of dominant and recessive alleles in all traits studied. Narrow-sense heritability values were 0.41 for seed yield/plant, 0.46 for height to the first pod, 0.55 for plant height, 0.52 for number of pods/plant, and 0.85 for 100-seed weight. Correlations among characters differed to the population under consideration. On the other hand, both the parents and F1 hybrids showed that number of pods/plant gave the highest genotypic and phenotypic correlations with seed yield/plant
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