Effect of date of grafting on survival in Douglas-fir
By: by Donald L. Copes.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research note -- PNW-135.; USDA Forest Service research note PNW -- 135.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service
Published: 1970
Place of publication: [Portland, Or.]
Language: eng
Subjects: Douglas fir -- Grafting.
Notes: Caption title.

"November 1970."

Includes bibliographical references.