A Note On Effects of Wounds On Heartwood Formation in White Oak (<i>Quercus ALBA</i> L.)

Authors

  • E. Allen McGinnes
  • Alex L. Shigo

Keywords:

Wounding, sapwood, heartwood, fire wounds

Abstract

Heartwood formation was retarded by wounds on white oaks in Maine and Missouri. Maine samples with fire wounds had 22-23 rings of sapwood near the wound whereas control trees had 9. Missouri samples subjected to frill and herbicide treatments averaged 16-17 rings of sapwood near the wound, whereas control trees averaged 12. The effects of wounding on Missouri trees were pronounced at heights of 1, 2.5, and 6 m.

References

Brinkman, K. A. 1960. Controlling oaks with stem applied herbicides. Iowa State J. Sci. 34(4):613-622.nHillis, W. E. 1962. Wood extractives and their significance to the pulp and paper industries. Academic Press, New York, Publishers. Page 73.nMcGinnes, E. A., Jr., S. A. Kandeel, and P. S. Szopa. 1969. Frequency and selected anatomical features of included sapwood in eastern red cedar. Wood Sci. 2(2):100-106.nShigo, A. L. 1972. Successions of microorganisms and patterns of discoloration and decay after wounding in red oak and white oak. Phytopathology 62(2):256-259.nShigo, A. L., and W. E. Hillis. 1973. Heartwood, discolored wood, and microorganisms in living trees. Ann. Rev. Phytopathology 11:197-222.nShigo, A. L., and E. vH. Larson. 1969. A photo guide to the patterns of discoloration and decay in living northern hardwood trees. U.S.D.A.-Forest Service Research Paper NE-127. 100 pp.n

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Published

2007-06-05

Issue

Number 4 / Winter 1975

Section

Research Contributions

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