VARIATIONS IN GROWTH RING WIDTH AND WOOD DENSITY  OF Tectona grandis Linn PLANTED IN YEN CHAU, SON LA

Dương Văn Đoàn; Nguyễn Thế Trọng; Nguyễn Bá Đoàn

doi:10.34238/tnu-jst.8231

VARIATIONS IN GROWTH RING WIDTH AND WOOD DENSITY OF Tectona grandis Linn PLANTED IN YEN CHAU, SON LA

About this article

Received: 28/06/23 Revised: 04/08/23 Published: 04/08/23

Authors

1. Duong Van Doan , TNU - University of Agriculture and Forestry
2. Nguyen The Trong, TNU - University of Agriculture and Forestry
3. Nguyen Ba Doan, Chi Lang Administration of Forestry, Lang Son

Abstract

Variations in growth ring width and wood density were investigated in 22-year-olds Tectona grandis planted in Yen Chau, Son La. Five trees were selected and then the wood samples were cut at height of 0.3m (North – South) above the ground for experiments. In general, mean growth ring width near the pith was large and decreased grandually with cambial age up to 12 years before being less or more stable (2 – 3 mm) to the bark. The mean growth ring width of Tectona grandis was 4.34 mm. Meanwhile, wood density tended a nearly constant from the cambiage 2 to the bark and had an average value of 0.69 g/cm³. The tree growth rate does not affect on wood density when the correlation between these two values is very low and not statistically significant (r = 0.04; P > 0.05). The ANOVA results showed no significant diference (P > 0.05) was found in growth ring width betweeen sample trees. In constrast, there was a significant difference (P < 0.05) in wood density between trees. This suggested that in the tree brreeding program, it is possible to select the parents with good wood quality based on the wood density value.

Keywords

Growth ring width; Relationship; Son La; Tectona grandis; Wood density

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References

[1] E. Zahabu, T. Raphael, S. A. O. Chamshama et al., “Effect of spacing regimes on growth, yield, and wood properties of Tectona grandis at Longuza Forest Plantation, Tanzania,” International Journal of Forestry Research, vol. 2015, no. 3, pp. 1-6, 2015.

[2] C. H. Nguyen, T. H. Vu, and V. S. Nguyen, “Individual biomass of teak (Tectona grandis) and the relationship between biomass and investigated factors,” (in Vietnamese), TNU Journal of Science and Technology, vol. 111, no. 11, pp. 149-153, 2013.

[3] H. D. Vu and T. P. H. Ta (Eds.), Wood science curriculum. Agriculture Publisher, Hanoi, 2016.

[4] S. Raiskila, P. Saranpää, K. Fagerstedt et al., “Growth rate and wood properties of Norway spruce cutting clones on different sites,” Silva Fennica, vol. 40, no. 2, pp. 247-256, 2006.

[5] M. Kojima, H. Yamamoto, K. Okumura K et al., “Effect of the lateral growth rate on wood properties in fast-growing hardwood species,” Journal of Wood Science, vol. 55, no. 6, pp. 417-424, 2009.

[6] F. Ishiguri, H. Aiso, M. Hirano et al., “Effects of radial growth rate on anatomical characteristics and wood properties of 10-year-old Dysoxylum mollissimum trees planted in Bengkulu, Indonesia,” Tropics, vol. 25, no. 1, pp. 23-31, 2016.

[7] Electronic portal of Yen Chau district, “Natural condition,” 2018. [Online]. Available: https://yenchau.sonla.gov.vn/1297/31378/58877/416970/Dieu-kien-tu-nhien/Dieu-kien-tu-nhien.aspx. [Accessed June 28, 2023].

[8] C. H. Nguyen, “Study on growth and structure of plantation of Teak (Tectona grandis L. f.) in Son La province to create scientific basis for proposing silvicultural measures for its management,” PhD. Thesis, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen, 2014.

[9] I. Miranda, V. Sousa, and H. Pereira, “Wood properties of teak (Tectona grandis) from a mature unmanaged stand in East Timor,” Journal of Wood Science, vol. 57, no. 3, pp. 171-178, 2011.

[10] K. M. Bhat, P. B. Priya, and P. Rugmini, “Characterisation of juvenile wood in teak,” Wood Science and Technology, vol. 34, no. 6, pp. 517-532, 2001.

[11] A. N. A. Kumar, Y. B. Srinivasa, and S. S. Chauhan, “Growth rate convergence in teak (Tectona grandis L.),” Current Science, vol. 83, no. 7, pp. 808-809, 2002.

[12] M. C. Anish, E. V. Anoop, R. Vishnu et al., “Effect of growth rate on wood quality of teck (Tectona grandis L.f.): a comparative study of teck grown under differing site quality conditions,” Journal of the Indian Academy of Wood Science, vol. 12, no. 1, pp. 81-88, 2015.

[13] S. S. Kumar, V. Rao, T. S. Rathore, and H. P. Borgaonkar, “Effect of growth rate and latewood content on basic density of wood from 120-year-old natural-grown Teak (Tectona grandis L. f.),” International Research Journal of Biological Sciences, vol. 3, no. 4, pp. 66-72, 2014.

DOI: https://doi.org/10.34238/tnu-jst.8231

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