Selecting hybrid pine clones for deployment - The pointy end of wood quality improvement

Harding, Kevin J., Copley, Terry R., Peters, Rogers F., Dieters, Mark J., Nester, Marks R., Keys, Murray G. and Toon, Paul G. (2008). Selecting hybrid pine clones for deployment - The pointy end of wood quality improvement. In: The inaugural australasian Forest genetics Conference “Breeding for Wood Quality”, Hobart, TAS, Australia, (120-131). 11 - 14 April 2007.

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Author Harding, Kevin J.
Copley, Terry R.
Peters, Rogers F.
Dieters, Mark J.
Nester, Marks R.
Keys, Murray G.
Toon, Paul G.
Title of paper Selecting hybrid pine clones for deployment - The pointy end of wood quality improvement
Conference name The inaugural australasian Forest genetics Conference “Breeding for Wood Quality”
Conference location Hobart, TAS, Australia
Conference dates 11 - 14 April 2007
Journal name New Zealand Journal of Forestry Science   Check publisher's open access policy
Place of Publication Heidelberg, Germany
Publisher SpringerOpen
Publication Year 2008
Year available 2008
Sub-type Fully published paper
Open Access Status File (Publisher version)
ISSN 0048-0134
Volume 38
Issue 1
Start page 120
End page 131
Total pages 12
Collection year 2009
Language eng
Formatted Abstract/Summary
 A clonal forestry research programme on Pinus elliottii Engelm. (slash pine) x P. caribaea Morelet var. hondurensis Barrett & Golfari (Caribbean pine) hybrids commenced in Queensland in 1986. Each cycle of clonal tests covered about 5 calendar years from field planting, and studies of wood quality variation have so far been used in selecting superior clones from the first three series of tests for commercial plantation deployment. Experience from the Series III clonal selection round is used to highlight the difficulties of ranking elite clones given a large number of growth, form, and wood property traits. Three to six ramets were felled from the best 32 clones in the Series III trials at age 6.8 years and a 3-m butt log from each was sawn into 70 ž 35-mm structural boards. The clones sawn were ranked for routine deployment using data on growth, form, and wood traits. All recovered boards were assessed for distortion and tested for modulus of elasticity and modulus of rupture. Various non-destructive wood evaluation methods were used to estimate modulus of elasticity (wood stiffness) in these trees. Standing tree acoustic velocity assessed with an ST300 tool was slightly less strongly correlated phenotypically with the average modulus of elasticity of the recovered boards (r = 0.88**) than with predictions of modulus of elasticity from resonance vibration test samples and SilviScan estimates (both r = 0.89**). Moderate phenotypic relationships were found for individual tree means between average twist of the sawn boards and the average spiral grain angle of growth rings 2, 3, and 4 (r = 0.70**) assessed using a breast-height 12-mm increment core, and between average bow in the boards and average microfibril angle (r = 0.64**) from SilviScan assessments of core samples
Subjects 1107 Immunology
1110 Nursing
1500 Chemical Engineering
2303 Ecology
Keyword Clones
Non destructive sampling
Pine hybrids
Wood quality
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: Queensland Alliance for Agriculture and Food Innovation
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