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Physical Changes in Decaying Wood

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Small beams from the sapwood of loblolly pine (Pinus taeda L.) were subjected to decay by pure cultures of Poria monticola Murr. and Polyporus abietinus (Dicks.) Fries; similar beams from the sapwood of red gum (Liquidambar styraciflua L.) were subjected to decay by pure cultures of Lenzites trabea (Pers.) Fries and Polyporus versicolor (L.) Fries. Some of the beams were removed and broken in a toughness machine at the end of every 2-week period up to a final decay period of 14 weeks. The reduction in toughness due to decay was very rapid with no important difference in the action of the white rot and the brown rot organisms. The brown rot organisms caused noticeable shrinkage on drying whereas the white rot organisms did not.
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Document Type: Journal Article

Affiliations: Professor of Wood Utilization, Forestry Department, A.P.I. Agricultural Experiment Station, Auburn, Alabama

Publication date: 1954-04-01

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

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