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Tree Genetics & Genomes

, Volume 6, Issue 5, pp 757–765 | Cite as

Stiffness and checking of Eucalyptus nitens sawn boards: genetic variation and potential for genetic improvement

  • David BlackburnEmail author
  • Matthew Hamilton
  • Chris Harwood
  • Trevor Innes
  • Brad Potts
  • Dean Williams
Original Paper

Abstract

A trial was undertaken to assess the extent to which variation in sawn-board quality traits of plantation-grown Eucalyptus nitens is under genetic control and amenable to genetic improvement. Five hundred and sixty trees from 129 families and three central Victorian races were sampled from an open-pollinated progeny trial in Tasmania, Australia. Acoustic wave velocity (AWV) was assessed on standing trees and sawlogs. Wedges from disks extracted from sawlogs were assessed for basic density and checking. Processed boards from 496 of the trees were assessed for board stiffness (static modulus of elasticity, MOE), and internal and surface checking. Genetic differences among races were significant for AWV and MOE traits. The Southern race had the highest mean values for these traits. Significant additive genetic variation within races was observed in all traits, demonstrating that the quality of plantation-grown E. nitens boards could be improved through breeding. Estimated narrow-sense heritabilities were 0.85 for standing-tree AWV, 0.71 for log AWV, 0.37 for board MOE, and ranged from 0.20 to 0.52 for checking traits. A strongly positive genetic correlation (r g = 1.05) was observed between standing-tree AWV and board MOE, indicating that AWV could be used as a selection trait to improve E. nitens board stiffness. The genetic correlation between basic density and board MOE was also positive (r g = 0.62). However, a significant and adverse genetic correlation (r g = 0.61) was identified between basic density and surface check length. Wood stiffness and checking traits were more-or-less genetically independent, and genetic correlations between surface and internal checking were positive but only moderate (r g = 0.48–0.52).

Keywords

Eucalyptus nitens Checking Density Heritability Stiffness Sawn timber 

Notes

Acknowledgments

The study was funded and carried out by the Cooperative Research Center for Forestry. We acknowledge substantial in-kind assistance from Forest Enterprises Australia Ltd (FEA) and Forestry Tasmania. We thank Keith Churchill, David Page, and Maria Ottenschlaeger (CSIRO Sustainable Ecosystems) for their assistance and technical support.

Ethical standards

The authors declare that the experiments outlined in this paper comply with the current laws of Australia, the country in which they were performed.

Conflict of interest

The authors declare that they have no conflict of interest.

References

  1. AS 2082 (2000) Timber—Hardwood—Visually stress graded for structural purposes. Standards Australia, Homebush, NSW, p 51Google Scholar
  2. AS/NZS 4063 (1992) Timber—Stress-graded—In-grade strength and stiffness evaluation. Joint publication of Standards Australia, Homebush, NSW and Standards New Zealand, Wellington, NZ, p 15Google Scholar
  3. AS/NZS 1748 (1997) Timber—Stress-graded—Product requirements for mechanically stress-graded timber. Joint publication of Standards Australia, Homebush, NSW and Standards New Zealand, Wellington, NZ, p 13Google Scholar
  4. Blakemore PA (2003) The use of hand-held electrical moisture meters with commercially important Australian hardwoods (Part 1—executive summary, methods, results, conclusion & recommendations). FWPRDC Project Number PN01.1306. Forest and Wood Products Research and Development Corporation, Melbourne, AustraliaGoogle Scholar
  5. Blakemore PA, Langrish TAG (2008) Effect of pre-drying schedule ramping on collapse recovery and internal checking with Victorian Ash eucalypts. Wood Sci Technol 42:473–492CrossRefGoogle Scholar
  6. Borralho NMG, Cotterill PP, Kanowski PJ (1993) Breeding objectives for pulp production of Eucalyptus globulus under different industrial cost structures. Can J For Res 23:648–656CrossRefGoogle Scholar
  7. Cannon T, Innes T (2008) Markets for the wood products from non-durable hardwood sawlog plantations. Proceedings from a Joint Venture Agroforestry Program Conference: Plantation Eucalypts for high-value timber: Enhancing investment through research and development. Rural Industries Research and Development Corporation, Moorabin, Victoria. Australia, pp 110–125Google Scholar
  8. Carter P, Chauhan S, Walker J (2006) Sorting logs and lumber for stiffness using Director HM200. Wood and Fibre Science 38:49–54Google Scholar
  9. Chafe SC, Barnacle JE, Hunter AJ, Ilic J, Northway RL, Rozsa AN (1992) Collapse: an introduction. CSIRO Australia, Division of Forest ProductsGoogle Scholar
  10. Cotterill PP, Dean CA (1990) successful tree breeding with index selection, 1st edn. CSIRO Publications, East Melbourne, VIC. 3002 AustraliaGoogle Scholar
  11. Dickson RL, Raymond CA, Joe W, Wilkinson CA (2003) Segregation of Eucalyptus dunnii logs using acoustics. For Ecol Manag 179:243–251CrossRefGoogle Scholar
  12. Dickson RL, Matheson AC, Joe B, Ilic J, Owen JV (2004) Acoustic segregation of Pinus radiata logs for sawmilling. NZ J For Sci 34:175–189Google Scholar
  13. Farrell R, Innes T, Nolan G (2008) Sorting plantation Eucalyptus nitens logs with acoustic wave velocity. Forest and Wood Products Australia Limited. Project No: PN07.3018, Victoria, AustraliaGoogle Scholar
  14. Gilmour AR, Cullis BR, Welham SJ, Thompson R (2006) ASREML 2.0. VSN International Ltd., Hemel Hempstead, UKGoogle Scholar
  15. Greaves BL, Raymond CA, Borralho NMG (1997) Breeding objective for plantation eucalypts grown for production of kraft Pulp. For Sci 43:465–472Google Scholar
  16. Griffin AR, Cotterill PP (1988) Genetic variation in growth of outcrossed, selfed and open-ollinated progenies of Eucalyptus regnans and some implications for breeding strategy. Silvae Genetica 37:124–131Google Scholar
  17. Hamilton MG, Potts BM (2008) Review of Eucalyptus nitens genetic parameters. N Z J For Sci 38:102–119Google Scholar
  18. Hamilton MG, Joyce K, Williams D, Dutkowski G, Potts BM (2008) Achievements in forest tree improvement in Australia and New Zealand 9, genetic improvement of Eucalyptus nitens in Australia. Australia Forestry 71:82–93Google Scholar
  19. Hamilton MG, Harwood CE, Potts BM (2009a) The effects of drying temperature and method of assessment on the expression of genetic variation in gross shrinkage of Eucalyptus globulus wood samples. Silvae Genetica 58:252–261Google Scholar
  20. Hamilton MG, Raymond CA, Harwood CE, Potts BM (2009b) Genetic variation in Eucalyptus nitens pulpwood and wood shrinkage traits. Tree Genetics and Genomes 5:307–316CrossRefGoogle Scholar
  21. Haslett AN (1988) Properties and utilisation of exotic speciality timbers grown in New Zealand. Part V: ash eucalypts and Eucalyptus nitens. Forest Research Institute, Rotorua, p 20Google Scholar
  22. INFOR (2004) Eucalyptus nitens en Chile: Primera monografía. Instituto Forestal (INFOR). Valdivia, Chile, p 143Google Scholar
  23. Ivković M, Wu HX, McRae TA, Powell MB (2006) Developing breeding objectives for radiata pine structural wood production I. Bioeconomic model and economic weights. Can J For Res 36:2920–2931CrossRefGoogle Scholar
  24. Kube PD (2005) Genetic Improvement of the Wood Properties of Eucalyptus nitens. PhD Thesis. University of TasmaniaGoogle Scholar
  25. Lausberg MJF, Gilchrist KF, Skipwith JH (1995) Wood properties of Eucalyptus nitens grown in New Zealand. N Z J For Res 25:147–163Google Scholar
  26. McKenzie HM, Shelbourne CJA, Kimberley MO, McKinley RB, Britton RAJ (2003) Processing young plantation-grown Eucalyptus nitens for solid-wood products. 2: predicting product quality from tree, increment core, disc, and 1-m billet properties. N Z J For Sci 33:79–113Google Scholar
  27. McKimm RJ (1985) Characteristics of wood of young fast-growing trees of Eucalyptus nitens Maiden with special reference to provenance variation. 3. Anatomical and physical characteristics. Aust For Res 17:19–28Google Scholar
  28. Nolan G, Greaves B, Washusen R, Parsons M, Jennings S (2005) Eucalypt plantations for solid wood products in Australia—a review 'If you don't prune it, we can't use it'. Forest & Wood Products Research & Development Corporation, Vic. AustraliaGoogle Scholar
  29. Pallett RN, Sale G (2004) The relative contributions of tree improvement and cultural practice toward productivity gains in Eucalyptus pulpwood stands. For Ecol Manage 193:33–43CrossRefGoogle Scholar
  30. Raymond C (2002) Genetics of Eucalyptus wood properties. Ann For Sci 59:525–531CrossRefGoogle Scholar
  31. Raymond CA, Henson M, Pelletier MC, Boyton S, Joe B, Thomas D, Smith H, Vanclay JK (2008) Improving dimensional stability in plantation-grown E. pilularis and E. dunnii. Project Number PN06: 3017. Forest and Wood Products Australia, Melbourne, AustraliaGoogle Scholar
  32. Reid R, Washusen R (2001) Sawn timber from 10-year-old pruned Eucalyptus nitens (Deane & Maiden) grown in an agricultural riparian buffer. In: Rutherford I, Sheldon F, Brierley G, Kenyon C (eds) Third Australian stream management conference proceedings: the value of healthy streams. Cooperative Research Centre for Catchment Hydrology, Brisbane, pp 545–550Google Scholar
  33. Shelbourne CJA, Nicholas ID, McKinley RB, Low CB, McConnochie RM, Lausberg MJF (2002) Wood density and internal checking of young Eucalyptus nitens in New Zealand as affected by site and height up the tree. N Z J For Sci 32:357–385Google Scholar
  34. Smith RGB, Palmer G, Davies M, Muneri A (2003) A method of enabling the reconstruction of internal features of logs from sawn lumber: the log end template. For Prod J 53:95–98Google Scholar
  35. Stackpole DJ, Vaillancourt RE, de Aguigar M, Potts B (2010) Age trends in genetic parameters for growth and wood density in Eucalyptus globulus. Tree Genetics and Genomes 6:179–193CrossRefGoogle Scholar
  36. Svensson S, Martensson A (1999) Simulation of drying stresses in wood. Part 1: comparison between one and two dimensional models. Holz Roh Werkst 60:72–80CrossRefGoogle Scholar
  37. TAPPI (1989) Basic density and moisture content of pulpwood. Technical Association of the Pulp and Paper Industries (TAPPI), South NorcrossGoogle Scholar
  38. Taylor JA, Warden P, Northway R, Ilic J, Langenberg VK (2003) Evaluation of remedial treatments for surface checks in appearance timber. FWPRDC Project Number: PN01.1303. Forest and Wood Products Research and Development Corporation, Melbourne, AustraliaGoogle Scholar
  39. Valencia B JC (2008) Application of non-destructive evaluation techniques to the prediction of solid-wood suitability of plantation-grown Eucalyptus nitens logs. MSc Thesis, School of Plant Science. University of Tasmania, HobartGoogle Scholar
  40. Washusen R, Innes T (2008) Processing plantation eucalypts for high-value timber. Proceedings from a Joint Venture Agroforestry Program Conference: Plantation Eucalypts for high-value timber: Enhancing investment through research and development. Rural Industries Research and Development Corporation, Moorabin, Victoria, Australia. pp 92–109Google Scholar
  41. Washusen R, Harwood CE, Morrow A, Northway R, Valencia JC, Volker P, Wood M, Farrell R (2009) Pruned plantation-grown Eucalyptus nitens: effects of thinning and conventional processing strategies on sawn board quality and recovery. N Z J For Sci 39:39–55Google Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • David Blackburn
    • 1
    • 6
    Email author
  • Matthew Hamilton
    • 5
  • Chris Harwood
    • 2
    • 6
  • Trevor Innes
    • 3
    • 6
  • Brad Potts
    • 1
    • 6
  • Dean Williams
    • 4
    • 6
  1. 1.School of Plant ScienceUniversity of TasmaniaHobartAustralia
  2. 2.CSIRO Sustainable EcosystemsHobartAustralia
  3. 3.Forest Enterprises AustraliaLauncestonAustralia
  4. 4.Forestry TasmaniaHobartAustralia
  5. 5.CSIRO Food Futures FlagshipHobartAustralia
  6. 6.CRC for ForestryHobartAustralia

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