Effect of red and far-red light upon growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings.
Publisher: Oregon State University
Published: 1968
Place of publication: [Corvallis, Or.]
Language: eng
Number of pages: 120
Subjects: Douglas fir; Trees -- Growth
Notes: Thesis - Oregon State University.

Bibliography: leaves 113-116.

Microfilm. Ann Arbor, University Microfilms, 1968. 1 reel.