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    Author(s): Richard W. Hemingway; W.E. Hillis
    Date: 1970
    Source: Wood Science and Technology 4:246-254
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (2.0 MB)


    An anatomical and chemical examination was made of living stumps of Douglas-fir. Changes in heartwood and extractives formation are not significant under the conditions of severe physiological stress that exisred unless cell morphology was also altered. It is proposcd that the factors controlling the amount and composition of heartwood extractives are incorporated in the ray cells during the early stages of their development.

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    Hemingway, Richard W.; Hillis, W.E. 1970. Heartwood formation in living stumps of douglas-fir. Wood Science and Technology 4:246-254

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