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Genetic improvement for pulpwood and peeled veneer in Eucalyptus nitens


Blackburn, D and Farrell, R and Hamilton, M and Volker, P and Harwood, CE and Williams, D and Potts, B, Genetic improvement for pulpwood and peeled veneer in Eucalyptus nitens, Canadian Journal of Forest Research, 42, (9) pp. 1724-1732. ISSN 0045-5067 (2012) [Refereed Article]

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Copyright Statement

Copyright 2012 The Authors

DOI: doi:10.1139/X2012-105


Genetic improvement of wood properties affecting the quality of pulpwood and peeled veneer products is of general interest to tree breeders worldwide. If the wood properties of Eucalyptus nitens (H. Deane & Maiden) Maiden are under genetic control and the correlations between them are favourable, it may be possible to breed to simultaneously improve the plantation resource for both products. Acoustic wave velocity (AWV) measured in standing trees can predict wood stiffness, basic density, and kraft pulp yield (KPY) and therefore has the potential for use in tree breeding programs. From an E. nitens progeny trial in Tasmania, 540 trees were selected for rotary peeling. Of the wood properties assessed, there were significant differences among races in diameter, stem straightness, standing-tree, log, and billet AWV, and near infrared predicted cellulose content (CC). All traits displayed significant within-race genetic variation, and genetic correlations between AWV and veneer sheet modulus of elasticity (MOE) and between AWV and KPY and CC were strongly positive and highly significant. A similar relationship was found between veneer sheet MOE and KPY and between diameter at breast height and veneer sheet MOE. Basic density was genetically correlated with AWV and veneer sheet MOE. Results indicate that it should be possible for breeders to simultaneously improve properties in pulpwood and peeled veneer products and that AWV measured in the standing tree shows promise as a breeding selection criterion for both pulpwood and peeled veneer products.

Item Details

Item Type:Refereed Article
Keywords:eucalypt, genetics, breeding, veneer, timber
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Tree improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood plantations
UTAS Author:Blackburn, D (Dr David Blackburn)
UTAS Author:Farrell, R (Mr Ross Farrell)
UTAS Author:Hamilton, M (Dr Matthew Hamilton)
UTAS Author:Harwood, CE (Mr Christopher Harwood)
UTAS Author:Potts, B (Professor Brad Potts)
ID Code:82214
Year Published:2012
Web of Science® Times Cited:16
Deposited By:Plant Science
Deposited On:2013-01-21
Last Modified:2017-11-09

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