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Annals of Forest Science

, Volume 68, Issue 2, pp 407–414 | Cite as

Characterization of mechanically perturbed young stems: can it be used for wood quality screening?

  • Luis A. Apiolaza
  • Brian Butterfield
  • Shakti S. Chauhan
  • John C. F. Walker
Original Paper

Abstract

Introduction

Genetic testing is the slowest part of a breeding cycle. There is a growing interest in early wood quality screening methodologies. We hypothesized that subjecting 8-month-old radiata pine trees to mechanical perturbance induces reaction wood that permits isolating their likely corewood features.

Methods

Four clones were grown straight, tied at 45° from the vertical, or rocked on a purpose-built frame. Trees were assessed for growth, basic density, compression wood, number of resin canals, and three acoustic stiffness (MoE) measures with an ultrasonic timer.

Results

There were no significant differences between stem postures for growth. Both rocked and straight trees developed similar levels of compression wood (between 13% and 17%). Rocked trees had a significantly larger number of resin canals than straight trees. Rocked trees produced the lowest MoE for all acoustic assessments. Clonal rankings for MoE were consistent between standing tree and green stemwood MoE. There were small ranking differences for dry stemwood MoE. Clone F, which expresses low MoE as an adult tree, had consistently the lowest MoE assessments but also the highest basic density.

Conclusion

The observed differences in wood properties between clones make feasible their use for screening purposes at an early age.

Keywords

Clones Compression wood Early selection Wood stiffness Acoustic assessments 

Notes

Acknowledgments

The authors thank Nigel Pink, Lachland Kirk, and Michael Weavers (University of Canterbury) for the design and construction of the rocking machine. This project was funded with contributions from FRST Compromised Wood (P2080) Programme and the New Zealand Wood Quality Initiative. We also thank the associate editor and anonymous referees for comments that contributed to improve the quality of the paper.

References

  1. Apiolaza LA (2009) Very early selection for solid wood quality: screening for early winners. Ann For Sci 66:601CrossRefGoogle Scholar
  2. Apiolaza LA, Chauhan SS, Walker JCF (2011) Genetic control of very early compression and opposite wood in Pinus radiata and its implications for selection. Tree Genet & Genomes. doi: 10.1007/s11295-010-0356-0
  3. Apiolaza LA, Walker JCF, Nair H, Butterfield B (2008) Very early screening of wood quality for radiata pine: pushing the envelope. In: Proceedings of the 51st International Convention of the Society of Wood Science and Technology, Concepcion, Chile. WQ-1Google Scholar
  4. Bascuñán A (2004) The influence of wind on radiata pine tree shape and wood stiffness. Master of Science Thesis. School of Forestry, University of Canterbury, New Zealand, p 199Google Scholar
  5. Bascuñán A, Moore JR, Walker JCF (2006) Variations in the dynamic modulus of elasticity with proximity to the stand edge in radiata pine stands on the Canterbury Plains, New Zealand. NZ J For 51:4–8Google Scholar
  6. Bruchert F, Gardiner B (2006) The effect of wind exposure on the tree aerial architecture and biomechanics of Sitka spruce (Picea sitchensis, Pinaceae). Am J Bot 93:1512–1521CrossRefGoogle Scholar
  7. Burdon RD (1975) Compression wood in Pinus radiata clones on four different sites. NZ J For Sci 5:152–164Google Scholar
  8. Burdon RD, Kibblewhite RP, Walker JCF, Megraw RA, Evans R, Cown DJ (2004) Juvenile versus mature wood: a new concept, orthogonal to corewood versus outerwood, with special reference to Pinus radiata and P. taeda. For Sci 50:399–415Google Scholar
  9. Chauhan S, Walker JCF (2006) Variations in acoustic velocity and density with age, and their interrelationships in radiata pine. For Ecol Manag 229:388–394CrossRefGoogle Scholar
  10. Donaldson LA, Grace JC, Downes G (2003) Within tree variation in anatomical properties of compression wood in radiata pine. IAWA J 23:253–271Google Scholar
  11. Grabianowski M, Manley B, Walker JCF (2004) Impact of stocking and exposure on outerwood acoustic properties of Pinus radiata in Eyrewell Forest. NZ J For 49:13–17Google Scholar
  12. Jakevicius L, Butkus J, Vladisauskas A (2006) Measurement of thickness of layer and sound velocity in multilayered structure by the use of angular ultrasonic transducers. Ultragarsas 58:20–24Google Scholar
  13. Lachenbruch B, Droppelmann F, Balocchi C, Peredo M, Perez E (2010) Stem form and compression wood formation in young Pinus radiata trees. Can J For Res 40:26–36CrossRefGoogle Scholar
  14. Larson PR (1968) More on evolution. J For 66:450Google Scholar
  15. Larson PR (1969) Wood formation and the concept of wood quality. Yale Univ School For Bulletin 74:54pGoogle Scholar
  16. Lasserre JP, Mason EG, Watt M (2005) The effects of genotype and spacing on Pinus radiata (D. Don) corewood stiffness in an 11-year old experiment. For Ecol Manag 205:375–383CrossRefGoogle Scholar
  17. Lindström H, Harris P, Nakada R (2002) Methods for measuring stiffness of young trees. Holz Roh Werkst 60:165–170CrossRefGoogle Scholar
  18. Lindström H, Evans RA, Reale M (2005) Implications of selecting tree clones with high modulus of elasticity. NZ J For Sci 35:50–71Google Scholar
  19. Mickovski SB, Ennos AR (2003) The effect of unidirectional stem flexing on shoot and root morphology and architecture in young Pinus sylvestis trees. Can J For Res 33:2202–2209CrossRefGoogle Scholar
  20. Nakada R (2007) Within-tree variation of wood characteristics in conifers and the anatomical characteristics specific to very young trees. In: Walker JCF (ed), The compromised wood workshop, Christchurch, New Zealand, 51–67Google Scholar
  21. R Development Core Team (2009) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL http://www.R-project.org.
  22. Shelbourne CJA, Zobel BJ, Stonecypher RW (1969) The inheritance of compression wood and its genetic and phenotypic correlations with six others traits in five-year-old Loblolly pine. Silvae Genet 18:43–47Google Scholar
  23. Sierra de Grado R, Pando V, Martínez Surimendi P, Peñalvo A, Báscones E, Moulia B (2008) Biomechanical differences in the stem straightening process among Pinus pinaster provenances. A new approach for early selection of stem straightness. Tree Physiol 28:835–846PubMedGoogle Scholar
  24. Stokes A, Nicoll BC, Coutts MP, Fitter AH (1997) Responses of young Sitka spruce clones to mechanical perturbation and nutrition: effects on biomass allocation, root development, and resistance to bending. Can J For Res 27:1049–1057CrossRefGoogle Scholar
  25. Telewski FW (1989) Structure and function of flexure wood in Abies fraser. Tree Physiol 5:113–121PubMedGoogle Scholar
  26. Telewski FW, Pruyn ML (1998) Thigmomorphogenesis: a dose response to flexing in Ulmus Americana seedlings. Tree Physiol 18:65–68PubMedGoogle Scholar
  27. Timell TE (1986) Compression wood in gymnosperms. Springer, BerlinGoogle Scholar
  28. van Belle G (2003) Statistical rules of thumb. Wiley. 221 p.Google Scholar
  29. Warren E, Smith RGB, Apiolaza LA, Walker JCF (2009) Effect of stocking on juvenile wood stiffness for three Eucalyptus species. New For 37:241–250CrossRefGoogle Scholar
  30. Yamashita S, Yoshida M, Takayama S, Okuyama T (2007) Stem-righting mechanism in gymnosperm trees deduced from limitations in compression wood development. Ann Bot 99:487–493PubMedCrossRefGoogle Scholar

Copyright information

© INRA and Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Luis A. Apiolaza
    • 1
  • Brian Butterfield
    • 2
  • Shakti S. Chauhan
    • 1
  • John C. F. Walker
    • 1
  1. 1.School of ForestryUniversity of CanterburyChristchurchNew Zealand
  2. 2.School of Biological SciencesUniversity of CanterburyChristchurchNew Zealand

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