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By Alfaro René I.   Shepherd Roy F.  

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Mechanical Stimulation and Xylem Production in Douglas-fir

By Kellogg R. M.   Steucek G. L.  

Forest Science, Vol. 26, Iss. 4, 1980-12 ,pp. : 643-651

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Effects of Growing Space on Growth for 20-Year-Old Giant Sequoia, Ponderosa Pine, and Douglas-Fir in the Sierra Nevada

By Peracca Galen G.   O'Hara Kevin L.  

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Increased Cone Production of Young Douglas-Fir Following Nitrogen and Phosphorus Fertilization

By Steinbrenner E. C.   Duffield J. W.   Campbell R. K.  

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Effects of Rootstock Source on the Size, Cone Production, and Compatibility of Douglas-Fir Grafts

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