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Heartwood formation in living stumps of douglas-fir

Informally Refereed

Abstract

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.

Citation

Hemingway, Richard W.; Hillis, W.E. 1970. Heartwood formation in living stumps of douglas-fir. Wood Science and Technology 4:246-254
https://www.fs.usda.gov/research/treesearch/8028