A spacing trial in Australian Toon ... an interim report

Herbert L. Wick; Robert E. Burgan

Treesearch

A spacing trial in Australian Toon ... an interim report

Informally Refereed

Authors:

Herbert L. Wick, Robert E. Burgan

Year:

1970

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-220. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

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Download (PDF 324 KB): https://research.fs.usda.gov/download/treesearch/30822.pdf

Abstract

Australian toon (Toona australis) was planted at four spacing intervals-6, 8, 10, and 12 feet-in a trial on the island of Hawaii. Measurement of 8-year-old trees showed that spacing interval did not affect diameter or height growth or survival; but basal area per acre decreased as spacing increased. A goal of 400 acceptable and desirable pole-sized trees per acre can be reached by using good planting technique and an initial spacing of slightly less than 9 by 9 feet, and by weeding the first year.

Keywords

Toona australis, species trials, planting density, Hawaii

Citation

Wick, Herbert L.; Burgan, Robert E. 1970. A spacing trial in Australian Toon ... an interim report. Res. Note PSW-RN-220. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p