Pumice as a medium for stratifying tree seeds
By: Dick W. Berry.
Contributors: Oregon State Board of Forestry.
Series: Research notes -- no. 5.; Research notes (Oregon State Board of Forestry) -- no. 5.
Publisher: Oregon State Board of Forestry
Published: 1952
Place of publication: Salem, Or
Language: eng
Subjects: Seeds -- Stratification.
Notes: Cover title.

"January 1952."

Includes bibliographical references (leaf 7).