Crown Release Increases Diameter Growth and Bole Sprouting of Pole-Size Yellow Birch

Gayne G. Erdmann; Ralph M. Jr. Peterson

Treesearch

Crown Release Increases Diameter Growth and Bole Sprouting of Pole-Size Yellow Birch

Informally Refereed

Authors:

Gayne G. Erdmann, Ralph M. Jr. Peterson

Year:

1971

Type:

Research Note

Station:

Northern Research Station

Source:

Research Note NC-130. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

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Abstract

During the second and third years after release, dominant, codominant, and intermediate pole-size yellow birch grew nearly twice as fast in diameter as unreleased poles. Growth rates were also related to foliage density. Epicormic sprouting was increased by crown release but most sprouting occured in the second log.

Keywords

crown thinning, crop tree, crown classes, foliage density, stem quality

Citation

Erdmann, Gayne G.; Peterson, Ralph M. Jr. 1971. Crown Release Increases Diameter Growth and Bole Sprouting of Pole-Size Yellow Birch. Research Note NC-130. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station