Abstract
Introduction
Wood quality is an important criterion in the selection of superior genotypes when breeding for solid wood.
Methods
Fourteen clones of Eucalyptus tereticornis Sm. were assessed for wood quality namely basic density, acoustic velocity, longitudinal growth strain and volumetric shrinkage. The effectiveness of the pilodyn in screening trees according to wood density was also evaluated. The relationship between the various wood quality variables was studied across the clones.
Results
A significant variation was observed in the wood quality between clones, but the variations within clones were not significant. The pilodyn penetration in the standing tree exhibited a strong negative correlation (r = −0.74) with basic density. A moderate but significant positive relationship (r = 0.61) was observed between the acoustic velocity and basic density. The standing tree’s acoustic velocity was strongly associated with log velocity (r = 0.88). These results suggest that the standing tree measurements namely pilodyn penetration, acoustic velocity and longitudinal growth strain can efficiently be used as fast mass screening methods for wood quality in E. tereticornis.
Conclusions
The absence of any association of longitudinal growth strain with any of the measured wood quality parameters suggests that superior clones having low growth strains can be selected for solid wood production without compromising other important wood properties. Four clones were identified with superior wood properties suitable for solid wood products.
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Acknowledgements
The authors express their gratitude to the director and group coordinator of the Institute of Wood Science and Technology, Bangalore for their support in carrying out the study. The authors are also thankful to Prof. John Walker, School of Forestry, University of Canterbury, Christchurch for his valuable comments and improving the language of this paper.
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Chauhan, S.S., Aggarwal, P. Segregation of Eucalyptus tereticornis Sm. clones for properties relevant to solid wood products. Annals of Forest Science 68, 511–521 (2011). https://doi.org/10.1007/s13595-011-0053-7
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DOI: https://doi.org/10.1007/s13595-011-0053-7