The effects of ryegrass competition and different nitrogen levels on the growth and yields of semi-dwarf wheat varieties
By: by Marvin LaVerne Swearingen.
Published: 1963
Language: eng
Number of pages: 107
Subjects: Wheat -- Varieties.; Rye.
Notes: Typescript.

Thesis (Ph. D.)--Oregon State University, 1963.

Bibliography: leaves 90-93.