Annals of Forest Science

, Volume 68, Issue 8, pp 1363–1373

Genetic and environmental variation in wood properties of Acacia melanoxylon

  • Gordon J. Bradbury
  • Brad M. Potts
  • Chris L. Beadle
Original Paper

DOI: 10.1007/s13595-011-0115-x

Cite this article as:
Bradbury, G.J., Potts, B.M. & Beadle, C.L. Annals of Forest Science (2011) 68: 1363. doi:10.1007/s13595-011-0115-x

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.

Keywords

BlackwoodGeneticsWood colourTonewood

Copyright information

© INRA and Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Gordon J. Bradbury
    • 1
  • Brad M. Potts
    • 1
  • Chris L. Beadle
    • 2
    • 3
  1. 1.School of Plant ScienceUniversity of TasmaniaHobartAustralia
  2. 2.CSIRO Ecosystem Sciences and Cooperative Research Centre for ForestryHobartAustralia
  3. 3.Tasmanian Institute for Agricultural ResearchHobartAustralia