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Title: Seed crops of forest trees in the pine region of California
Author: Fowells, H.A; Schubert, G.H.;
Source: Tech. Bull. 1150. Washington DC: U.S. Department of Agriculture. 48 p.
Publication Series: Bulletin
Description: To provide a better basis for silvicultural practices in the pine region of California, we are reporting the results of 28 years of study of seed crops. The study covered the development of cones, periodicity of cone crops, types of trees bearing cones, climatic and biotic factors affecting cone crops, and the dispersal of seed. The findings reported here should help foresters do a better job of planning silvicultural practices.
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Fowells, H.A; Schubert, G.H. 1956. Seed crops of forest trees in the pine region of California. Tech. Bull. 1150. Washington DC: U.S. Department of Agriculture. 48 p.
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