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Acoustic wave velocity as a selection trait in Eucalyptus nitens
Citation
Blackburn, D and Hamilton, M and Williams, D and Harwood, C and Potts, B, Acoustic wave velocity as a selection trait in Eucalyptus nitens, Forests, 5, (4) pp. 744-762. ISSN 1999-4907 (2014) [Refereed Article]
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Copyright Statement
Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/
DOI: doi:10.3390/f5040744
Abstract
Previous studies in Eucalyptus nitens have revealed favourable genetic correlations exist between acoustic wave velocity (AWV) in standing trees and modulus of elasticity (MOE), which can determine the suitability of trees for structural timber and/or engineered wood products. This study investigates the strength and stability of genetic variation in standing tree AWV across a range of environments in Tasmania, where there are a number of large plantation estates and breeding trials. Trees under study were from open-pollinated progeny trials established in 1993. Across sites, for standing tree AWV the ranking of E. nitens races did not change and within-race additive genetic correlations were strong (0.61 to 0.99). Heritabilities (0.16 to 0.74) and coefficients of additive genetic variation (2.6 to 4.8) were moderate for this trait. Correlations between standing tree AWV and both basic density and diameter at breast height (DBH) were favourable. Results indicate that there is potential to improve MOE in E. nitens through the exploitation of genetic variation in AWV among and within races, the expression of genetic variation in AWV is relatively stable across different growing environments, and past selection for basic density and growth in pulpwood breeding programs is unlikely to have adversely affected MOE.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Eucalyptus nitens, acoustic wave velocity, wood density, growth, heritability, genotype by environment interaction |
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Forestry sciences |
| Research Field: | Forestry product quality assessment |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Forestry |
| Objective Field: | Forestry not elsewhere classified |
| UTAS Author: | Blackburn, D (Dr David Blackburn) |
| UTAS Author: | Hamilton, M (Dr Matthew Hamilton) |
| UTAS Author: | Potts, B (Professor Brad Potts) |
| ID Code: | 98277 |
| Year Published: | 2014 |
| Web of Science® Times Cited: | 22 |
| Deposited By: | Plant Science |
| Deposited On: | 2015-02-10 |
| Last Modified: | 2017-11-09 |
| Downloads: | 295 View Download Statistics |
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