Influence of cambial contact length on graft survival and leader elongation in Douglas-fir
By: by Donald Copes.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: U.S. Forest Service research note PNW -- 69.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1967
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir -- Grafting.
Notes: Caption title.

"November, 1967."

Includes bibliographical references (p. 7-8).