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Forestry
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Author
Lavender, Denis P.
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Author
Oregon State University. Forest Research Laboratory
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Author
Overton, W. Scott
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Subject
Douglas fir -- Growth
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The effects of a range of thermoperiods and soil temperatures upon growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were studied. The seeds, of varieties glauca and menziesii, came ...
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