The Inheritance of Rachilla Length and its Relation to Other Characters in a Cross Between Avena Sativa and Avena Sativa Orientalis

be explained on a multiple factor basis.In this paper East outli certain requirements which, if met in a size inheritance study, tend! indicate that the results may be explained on a factorial basis.Quisenberry (15) in a study of the inheritance of length of gr'i in an oat cross found the Fi to have grains intermediate in length wli the Fo ranged from one parent to the other.In 150 F3 families, t] were recovered with a mean length as short as the short parent a four with a length as great as the long parent.Between the extren] were lines that apparently bred true for intermediate lengths.1l results were explained on the basis that the parents differed by I least three main factors or groups of factors for grain length.Garber and Quisenberry (6) studied the inheritance of dated heading, leaf width, number of culms, and color of seed in anoti oat cross.Earliness was found to be inherited as a dominant characH with evidence of a two factor difference.Leaf width was found to a a variable character.One F 3 family was recovered with a leaf wi<| less than the narrow-leaved parent.The data indicated that this chj acter was controlled by multiple factors.The number of culms \| also found to be greatly influenced by environment, but the data | dicated that it was an inherited character.Seed color was found 1 1 1