Effect of winter chilling and photoperiod on growth resumption in Douglas-fir, Pseudotsuga menziesii (Mirb.) Franko
By: by Donald Everett Wommack.
Published: 1960
Language: eng
Number of pages: 82
Subjects: Plant photoperiodism.; Plants, Effect of cold on.
Notes: Typescript.

Thesis (M.S.)--Oregon State College, 1960.

Bibliography: leaves 81-82.