Influence of Date of Cone Collection on Douglas-fir Seed Processing and Germination

Auteur : Brian R. Wall, Donald L. Olson, Otis Eugene Hickman, Thomas Daniel Fahey, Thomas E. Hamilton, Walter G. Dahms, Ward W. Carson

Date de publication : 1975

Éditeur : Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture

Nombre de pages : 13