Isoenzyme polymorphism in provenances of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco var. menziesii)
By: by Jenq-chuan Yang.
Published: 1974
Language: eng
Number of pages: 136
Subjects: Douglas fir.
Notes: Typescript (photocopy).

Thesis (Ph. D.)--Oregon State University, 1975.

Includes bibliography.