Growth of frost-damaged Douglas-fir seedlings
By: by James W. Edgren.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research note PNW -- 121.; U.S.D.A. Forest Service research note PNW -- 121.; Research note PNW -- 121.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1970
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir -- Seedlings; Douglas fir -- Washington (State); Trees -- Growth -- Frost damage
Notes: Caption title.

"June 1970."