Effect of storage temperatures on germination of seeds of twenty sources of Ponderosa Pine
By: David F. Van Haverbeke and Glenn W. Peterson.
Contributors: Peterson, Glenn W.; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Series: Research note RM -- 490.
Publisher: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Published: 1989
Place of publication: [Fort Collins, Colo.]
Language: eng
Subjects: Ponderosa pine -- Seeds -- Storage.; Ponderosa pine -- Seeds -- Viability.
Notes: Caption title.

"June, 1989."

Bibliography: p. 4.