Within-stem variation in tropolone content and decay resistance of second-growth Western redcedar

@inproceedings{DeBell1999WithinstemVI,
  title={Within-stem variation in tropolone content and decay resistance of second-growth Western redcedar},
  author={Jeffrey D. DeBell and Jeffrey J Morrell and Barbara Lachenbruch Gartner},
  year={1999}
}
Western redcedar (Thuja plicata Donn) is a commercial species valued for its high decay resistance, which is due to the presence of toxic extractives (tropolones) in the heartwood. We measured tropolone content and weight loss in soil block tests using samples taken from 11 second-growth western redcedar trees. Tropolone content increased with rings from the pith, and in the outer heartwood, increased from the top to the base of the tree. We did not find any consistent increase or decrease in… CONTINUE READING

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