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Filtering by: Wind River Arboretum, Skamania County, Washington, United States Committee Member Ferrell, W. K. Degree Field Botany

Genetic variations in length of active growth period among races of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:

Irgens-Moller, Helge

Resource Type:

Dissertation

Full Text:

) from United States Weather Bureau's station at Oregon State College, Corvallis 51 3. Average number of