Relationship of Protein Percent with other Phenotypic Characters in Interspecific Oat Crosses1

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Abstract
Protein percentage and its relationship with 15 other agronomic characteristics were studied in F5 generation progenies of F4 plants from crosses between Avena sterilis L. Var. Maxima Perez Lara and five A. sativa L. cultivars in an attempt to determine the relationships among factors involved in the improvement of oat quality. Mean percent protein of the progenies was intermediate between their parents. Transgressive segregation was present for both percent protein and yield in four crosses. The possibility of simultaneous improvement of these characteristics is suggested.Simple correlation coefficients indicated percent protein was positively associated (P<.01) with characters typical of A. sterilis. Regression analysis indicated yield had the most influence on percent protein of the characters studied.

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