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Crop Tree Release of a Scarlet-Black Oak Stand

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In 1953 and 1954 a series of crop tree thinning and pruning studies were initiated in 30- to 35-year-old stands composed predominantly of scarlet oak and black oak. Growth of the crop trees was monitored until the average stand age was 61. Removal of all trees whose crowns were within 8 ft of the 50 crop trees resulted in significantly increased diameter growth and cubic volume of wood produced. The moderate and heavy 50-crop-tree thinning treatments produced the highest net cubic volume per acre. Crop tree thinning also tended to reduce mortality during the study period. Yield increases due to thinning in this study were comparable to those previously determined to economically justify a precommercial thinning of the scarlet and black oak type in Missouri. North. J. Appl. For. 5:96-99, June 1988.
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Document Type: Journal Article

Affiliations: School of Forestry, Fisheries and Wildlife, University of Missouri, Columbia, MO 65211

Publication date: 01 June 1988

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