Inheritance of awns in a Kota X hard federation cross
1931
Stewart, G. | Judd, B.I.
This cross was made to study awn inheritance and to discover, if possible, the number of factors involved. The parents used in the cross were Hard Federation, an awnless variety, and Kota, a fully awned wheat. In F3, all the F2 genotypes were tested by the breeding behavior of F3 families, each from a single F2 plant. Four true-breeding classes were found and five which segregated each in a distinct manner. When the observed proportions of each of these 9 genotypes were studied by the closeness-of-fit method, the two P's were 0.97 and 0.45, both good fits. It seems reasonable to conclude that there is a two-factor difference for awns, independently inherited. The classes were clear-cut and definite when determined by the P's breeding behavior, and as carefully checked in the F4 and the F5 generations.
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