Application of fractometer for wood property evaluation in five Indonesian plantation species
2010
Matsumoto, K., Utsunomiya Univ. (Japan). Faculty of Agriculture | Ishiguri, F. | Wahyudi, I. | Takashima, Y. | Shimizu, K. | Iizuka, K. | Yokota, S. | Yoshizawa, N.
Five Indonesian plantation species, Agathis sp., Pinus merkusii, Acacia mangium, Swietenia sp., and Tectona grandis were selected for Fractometer evaluation test of wood properties without felling the trees. Core samples, 5 mm in diameter by increment borer, were collected at 1.3 m high from ground level and used for measuring the basic density and the compressive strength. The mean values of compressive strength measured by the Fractometer were similar to those of the parallel to grain small-clear specimens reported by other researchers. Significant variation among trees was found in the compressive strength mean values in each individual Agathis sp.,P. merkusii, and T. grandis. These results suggested that, in tree breeding programs, the values of compressive strength measured by Fractometer could be applied without felling in the selection of trees with high strength properties. A relatively high coefficient of determination was also recognized between Fractometer-measured compressive strength and basic density. Based on the results obtained in the present study, it can be said that the Fractometer is a powerful tool for evaluating the physical and mechanical properties of wood without tree felling.
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