Pacific Southwest

Title: A spacing trial in tropical ash ... an interim report

Author: Burgan, Robert E.

Date: 1971

Source: Res. Note PSW-RN-226. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

Station ID: RN-PSW-226

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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Citation

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.