Comparative strength and related properties of yemane (Gmelina arborea Roxb.) coppice and planted stand
2011
Alipon, M.A. | Bondad, E.O.
The strength and related properties of 7- and 3-year-old first and second coppice and 3-year-old planted stand yemane (Gmelina Arborea Roxb.) were studied to generate information that could help tree farmers properly grow, harvest, and utilize yemane timber from a coppice stand. The properties were also compared to secondary data from previously tested yemane stands of various ages and localities Based on FPRDI's Guidelines for the Improved utilization and Marketing of Tropical Species, the strength properties of the 7-year-old yemane coppice were generally moderately low (C4) to low (C5) while relative density and shrinkage were moderately low, and moisture content above 100%. The strength properties were lower than those of 5-, 10-, and 15-year old yemane planted stands. The wood of 7- and 3-year-old yemane first and second coppice, respectively, is recommended for furniture and other moderately light to light construction purposes. The diameter and stem form of the coppice might warrant applications for the recommended end-uses. Hence, finger jointing or gluing may be advisable if wider boards are needed. The strength properties of 3-year-old coppice were comparable to 3-year-old planted stand but the former had higher compression-perpendicular-to-grain shear than the latter.
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