4 edition of Effects of stratification and temperature on seed germination speed and uniformity in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.) found in the catalog.
Effects of stratification and temperature on seed germination speed and uniformity in central Oregon ponderosa pine (Pinus ponderosa Dougl. ex Laws.)
John C. Weber
by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station in [Portland, Or.]
Written in English
|Statement||John C. Weber and Frank C. Sorensen.|
|Series||Research paper PNW-RP -- 429|
|Contributions||Sorensen, Frank C., Pacific Northwest Research Station (Portland, Ore.)|
|The Physical Object|
|Number of Pages||13|
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