Stem-quality Changes on Young, Mixed, Upland Hardwoods After Crop-tree Release
Stem-quality Changes on Young, Mixed, Upland Hardwoods After Crop-tree Release

Author: David L. Sonderman

Publisher:

Published: 1987

Total Pages: 12

ISBN-13:

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"Relative change of several types of stem defects was studied over an 8-year period to determine the effects of crop-tree thinning on the development of tree quality. Special interest was given to changes in relative quality associated with defect indicators of crop trees compared to trees in unthinned plots. The relative quality classes of the crop trees went from "poor" to "medium" for red maple and "poor" to "good" for aspen. The oaks stayed in the poor classification and yellow-poplar remained unchanged in the medium classification. Results showed a decrease in the number of epicormic branches on the crop trees, and an increase in the size of live limbs.S3.

Stem-quality Changes on Young, Mixed, Upland Hardwoods After Crop-tree Release
Stem-quality Changes on Young, Mixed, Upland Hardwoods After Crop-tree Release

Author: David L. Sonderman

Publisher:

Published: 1987

Total Pages: 0

ISBN-13:

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"Relative change of several types of stem defects was studied over an 8-year period to determine the effects of crop-tree thinning on the development of tree quality. Special interest was given to changes in relative quality associated with defect indicators of crop trees compared to trees in unthinned plots. The relative quality classes of the crop trees went from "poor" to "medium" for red maple and "poor" to "good" for aspen. The oaks stayed in the poor classification and yellow-poplar remained unchanged in the medium classification. Results showed a decrease in the number of epicormic branches on the crop trees, and an increase in the size of live limbs. S3

Changes in Hardwood Growing-stock Tree Grades
Changes in Hardwood Growing-stock Tree Grades

Author: David L. Sonderman

Publisher:

Published: 1987

Total Pages: 12

ISBN-13:

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S2Describes changes in provisional tree grades for 351 young, mixed upland hardwood trees 6 years after thinning. Treatments of 30, 50, and 70 percent stocking plus a crop-tree release were applied. Results indicate that light thinning and crop-tree thinning produced higher quality and better grade trees than heavy thinning.S3.