Cover Image

Geographic variation in speed of seed germination in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.) /

Bibliographic Details
Main Author: Weber, John C.
Corporate Author: Pacific Northwest Research Station (Portland, Or.)
Format: Government Document Microform Book
Language:English
Published: Portland, Or. : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1992] [date of publication not identified]
Series:Research paper PNW ; 444.
Subjects:
Ponderosa pine > Oregon.
Germination.
Description
Item Description:Cover title.
Distributed to depository libraries in microfiche.
Shipping list number: 92-1778-M.
"March 1992."
Microform.
Physical Description:12 pages : illustrations ; 28 cm.
Bibliography:Includes bibliographical references (pages 10-12).