A review of heartwood properties of Tectona grandis trees from fast-growth plantations |
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Authors: | Róger Moya Brian Bond Henry Quesada |
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Institution: | 1. Escuela de Ingeniería Forestal, Instituto Tecnológico de Costa Rica, 159-7050, Apartado, Cartago, Costa Rica 2. Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, VA, USA
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Abstract: | Teak (Tectona grandis L. f) has been introduced to reforestation programs in many tropical countries for timber production. The use of teak plantations has changed the supply from large-diameter logs to small-diameter logs featuring a higher proportion of juvenile wood and more knots. Generally, the teak from fast-growth plantation is harvested after 15–30 years of growth, with logs ranging from 12 to 30 cm in diameter. The goal of this work was to review the factors that influence the heartwood formation, variation, quality, color, and durability in teak and to understand which factors should be controlled in fast-growth plantations. Important factors in the heartwood properties of teak trees from fast-growth plantations are as follows: the tree age, longitudinal variation, geographic location, environmental conditions, and silvicultural activities. These factors influence heartwood extractive content, color variation, and durability. |
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