Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens
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 investigate...
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| Format: | Article |
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MDPI AG
2014-04-01
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| Series: | Forests |
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| Online Access: | http://www.mdpi.com/1999-4907/5/4/744 |
| _version_ | 1811338563119218688 |
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| author | David Blackburn Matthew Hamilton Dean Williams Chris Harwood Brad Potts |
| author_facet | David Blackburn Matthew Hamilton Dean Williams Chris Harwood Brad Potts |
| author_sort | David Blackburn |
| collection | DOAJ |
| description | 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. |
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| format | Article |
| id | doaj.art-feea1f064efb4d6993c934b731ac7461 |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-04-13T18:12:40Z |
| publishDate | 2014-04-01 |
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| spelling | doaj.art-feea1f064efb4d6993c934b731ac74612022-12-22T02:35:49ZengMDPI AGForests1999-49072014-04-015474476210.3390/f5040744f5040744Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitensDavid Blackburn0Matthew Hamilton1Dean Williams2Chris Harwood3Brad Potts4School of Biological Sciences and the National Centre for Future Forest Industries (NCFFI), University of Tasmania, Private Bag 55, Hobart, Tasmania 7000, AustraliaSchool of Biological Sciences and the National Centre for Future Forest Industries (NCFFI), University of Tasmania, Private Bag 55, Hobart, Tasmania 7000, AustraliaForestry Tasmania, 79 Melville Street, Hobart, Tasmania 7000, AustraliaCSIRO Ecosystem Sciences and Sustainable Agriculture Flagship, Private Bag 12, Hobart, Tasmania 7001, AustraliaSchool of Biological Sciences and the National Centre for Future Forest Industries (NCFFI), University of Tasmania, Private Bag 55, Hobart, Tasmania 7000, AustraliaPrevious 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.http://www.mdpi.com/1999-4907/5/4/744Eucalyptus nitensacoustic wave velocitywood densitygrowthheritabilitygenotype by environment interaction |
| spellingShingle | David Blackburn Matthew Hamilton Dean Williams Chris Harwood Brad Potts Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens Forests Eucalyptus nitens acoustic wave velocity wood density growth heritability genotype by environment interaction |
| title | Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens |
| title_full | Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens |
| title_fullStr | Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens |
| title_full_unstemmed | Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens |
| title_short | Acoustic Wave Velocity as a Selection Trait in Eucalyptus nitens |
| title_sort | acoustic wave velocity as a selection trait in eucalyptus nitens |
| topic | Eucalyptus nitens acoustic wave velocity wood density growth heritability genotype by environment interaction |
| url | http://www.mdpi.com/1999-4907/5/4/744 |
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