Library Open Repository

Genetic and environmental variation in wood properties of Acacia melanoxylon

Downloads

Downloads per month over past year

Bradbury, GJ and Potts, BM and Beadle, CL (2011) Genetic and environmental variation in wood properties of Acacia melanoxylon. Annals of Forest Science, 68. pp. 1363-1373. ISSN 1286-4560

This is the latest version of this item.

[img] PDF
Bradbury_et_al_2011b_Annals_For_Res_genetic_and_envir_Acacia.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

-Context Australian blackwood (Acacia melanoxylon), is a fast-growing, high-quality, appearance-grade timber species native to eastern Australia. Some of its key wood properties are percentage heartwood, heartwood colour, basic density, wood stiffness and green moisture content. Variation in these properties affects log value, processing and marketing. - Aims This study aims to understand how genetics and environment affect these wood properties. - Methods Stem cores were taken from 16 open-pollinated blackwood families from the island of Tasmania, Australia, which were planted across three 18-year-old progeny trials. -Results Significant effects of genetics, environment and their interaction (GxE) were found for many of the wood properties examined. Both broad-scale and local environmental effects were apparent, with local effects associated with competition and/or allelopathy from a Eucalyptus globulus nurse crop present in one trial. No significant correlation of growth rate (i.e. stem diameter) with wood properties was detected at the family level apart from a positive relationship with heartwood width. At the phenotypic level, there were many significant correlations including growth rate with heartwood width, but not with basic density, or wood stiffness measured as standing tree time of flight. Faster growing trees had yellower heartwood while trees with higher basic and green densities tended to have darker, redder and less yellow heartwood. - Conclusion Both genetic and environment factors affect key wood properties of Australian blackwood, but in most cases these effects were independent of growth rate.

Item Type: Article
Keywords: Blackwood, Genetics, Wood colour, Tonewood
Journal or Publication Title: Annals of Forest Science
Page Range: pp. 1363-1373
ISSN: 1286-4560
Identification Number - DOI: 10.1007/s13595-011-0115-x
Additional Information: The final publication is available at http://www.springerlink.com.
Date Deposited: 02 Dec 2011 01:17
Last Modified: 02 Dec 2011 01:17
URI: http://eprints.utas.edu.au/id/eprint/12315
Item Statistics: View statistics for this item

Available Versions of this Item

Repository Staff Only (login required)

Item Control Page Item Control Page