The effect of thiourea with and without heat on the breaking of dormancy and production of secondary dormancy in Douglas fir seeds
By: by Aht Boonnitee.
Published: 1961
Language: eng
Number of pages: 31
Subjects: Douglas fir.; Vernalization.; Germination.
Notes: Typescript.

Thesis (M.S.)--Oregon State College, 1961.

Bibliography: leaves 28-31.