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    Author(s): Robert E. Phares; Robert D. Williams
    Date: 1971
    Source: Research Note NC-124. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
    Publication Series: Research Note (RN)
    Station: North Central Research Station
    PDF: View PDF  (1.3 MB)

    Description

    Complete crown release more than doubles the diameter growth of pole-size black walnut trees in southern Indiana over a 10-year period. Partially released trees gew about 50 percent more than unreleased trees. The faster growth of the released trees was directly related to increases in crown-area expansion. Most of the study trees produced bole sprouts; however, the incidence of sprouting was higher and the sprouts were larger on the completely released trees than on the unreleased trees. Controlling understory growth during the last 6 years of the study had no significant effect on growth of the walnut trees.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Phares, Robert E.; Williams, Robert D. 1971. Crown Release Promotes Faster Diameter Growth of Pole-Size Black Walnut. Research Note NC-124. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

    Keywords

    crown release, black walnut

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