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Natural durability indicators in young plantation and native forest regrowth Gympie messmate (Eucalyptus cloeziana)

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Francis, L. P., Semple, K. E., Hassan, B. and Morrell, J. J. (2023) Natural durability indicators in young plantation and native forest regrowth Gympie messmate (Eucalyptus cloeziana). Holzforschung, 77 (11-12).

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Article Link: https://doi.org/10.1515/hf-2023-0057

Abstract

Understanding the durability of emerging plantation hardwood resources is important for optimising their production and use. This study compared timber density, extractives content and decay resistance in 12–13-year-old plantation and native forest regrowth Gympie messmate (Eucalyptus cloeziana) trees. Density increased from pith to bark for both plantation and native forest trees. Inner heartwood density of the plantation timber was significantly lower than that of the native forest regrowth timber. While the total extractives content of the outer heartwood was comparable in the plantation and native forest regrowth trees, the inner heartwood of the latter contained significantly greater extractives levels. Laboratory decay tests showed that all heartwood zones of plantation and native forest regrowth Gympie messmate were resistant to decay by the white rot Pycnoporus coccineus. The inner heartwood of the plantation timber was, however, susceptible to decay by the brown rot Fomitopsis ostreiformis. The results illustrate the potential variations in wood quality parameters to be considered when moving from native forest to plantation resources that are harvested at a younger age and managed for more rapid wood production.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Horticulture and Forestry Science
Keywords:density; Eucalyptus cloeziana ; extractives; laboratory decay; plantation
Subjects:Forestry > Research. Experimentation
Forestry > Exploitation and utilization
Agriculture > By region or country > Australia > Queensland
Live Archive:23 Nov 2023 02:20
Last Modified:29 Feb 2024 02:31

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