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Crown Release Promotes Faster Diameter Growth of Pole-Size Black WalnutAuthor(s): Robert E. Phares; Robert D. Williams
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
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DescriptionComplete 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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CitationPhares, 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
Keywordscrown release, black walnut
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