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Title: Seed production of Douglas-fir increased by thinning.
Author: Reukema, Donald L.;
Source: PNW Old Series Research Note No. 210, p. 1-5
Publication Series: Miscellaneous Publication
Description: In planning thinnings and final harvest cuttings for stands of young-growth Douglas-fir, foresters need reliable information on the capacity of young-growth stands to bear seed, on the periodicity of seed crops, and on the effects of thinning and other forest practices on seed production. One of the first studies designed to help provide this information was begun in 1950.
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Reukema, Donald L. 1961. Seed production of Douglas-fir increased by thinning. PNW Old Series Research Note No. 210, p. 1-5
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