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Title: A spacing trial in tropical ash ... an interim report
Author: Burgan, Robert E.;
Source: Res. Note PSW-RN-226. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p
Publication Series: Research Note (RN)
Description: The optimum interval at which to plant tropical ash (Fraxinus uhdei) is being studied on the Waiakea Forest Reserve, island of Hawaii. Four spacing intervals are being tried: 6,8, 10, and 12 feet. Measurements of trial plots in 1969-8 years after plots were set up-suggest that (a) interval had not affected survival rate; (b) spacing had not affected diameter or height growth; (c) basal area per acre varied inversely with interval; and (d) spacing had not affected proportion of acceptable, desirable, and cull trees to total number of trees planted.
Keywords: Fraxinus uhdei, spacing trials, Waiakea Forest Reserve
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Burgan, Robert E. 1971. A spacing trial in tropical ash ... an interim report. Res. Note PSW-RN-226. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p
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