Sonic treatment of Douglas fir and ponderosa pine seeds and seedlings
By: by Denis P. Lavender, George H. Atherton.
Contributors: Atherton, George H.; Oregon State University. Forest Research Laboratory.
Series: Research note / Forest Research Laboratory, Oregon State University -- 48.; Research note (Oregon State University. Forest Research Laboratory) -- no. 48.
Publisher: Forest Research Laboratory, Oregon State University
Published: 1964
Place of publication: Corvallis
Language: eng
Number of pages: 16
Subjects: Ponderosa pine -- Seeds.; Ponderosa pine -- Seedlings.; Douglas fir -- Seeds.; Douglas fir -- Seedlings.; Germination.; Plants, Effect of sound on.
Notes: Title from cover.

Bibliography: p. 14.