Influence of Crown Reduction on Springwood and Summerwood Distribution in Longleaf Pine
Abstract:A study was made to determine the effect of reduction of crown size on tree growth, especially its effect on wood formation in longleaf pine (Pinus palustris Miller). Severe and continued reduction of the lower part of the crown resulted in greatly reduced ring width in the lower part of the trunk. Springwood was reduced more than summerwood at the lower levels in comparison with wood formation in unmodified control trees. Higher in the trees near the lower limit of the crown, proportions of springwood and summerwood differed much less. The effect on springwood reduction in parts of the lower trunks of pruned trees was persistent for several years in the trees studied.
Document Type: Journal Article
Affiliations: Forest Products Technologist, Forest Products Laboratory, Forest Service, U. S. Department of Agriculture, Maintained in cooperation with the University of Wisconsin, Madison
Publication date: March 1, 1951
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