Variation in growth efficiency of selected western hemlock (Tsuga heterophylla (RAF.) Sarg.)
Eighty western hemlock trees, in the age range of 15 to 48 years, were selected on three Crown Zellerbach tree farms in northwestern Oregon and southwestern Washington to sample the range of variation in growth efficiency. Growth efficiency is defined as the ability of the crown to produce the maxim...
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| Language: | English |
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2010
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| Online Access: | http://hdl.handle.net/2429/21489 |