Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis

Vochysia guatemalensis has been planted over large tropical areas to obtain lumber products. However, compared with naturally-grown material variations in wood color have been noted. In the current research, trees from two 8-year-old fast-grown plantations were sampled from different climatic condit...

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Autores principales:	Aguilar-Tova,Diana, Moya,Róger, Tenorio,Carolina
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2009
Materias:	Fast growth plantations tropical species CIElab color systems wood quality
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000300004
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spelling	oai:scielo:S0718-221X20090003000042010-09-13Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensisAguilar-Tova,DianaMoya,RógerTenorio,Carolina Fast growth plantations tropical species CIElab color systems wood quality Vochysia guatemalensis has been planted over large tropical areas to obtain lumber products. However, compared with naturally-grown material variations in wood color have been noted. In the current research, trees from two 8-year-old fast-grown plantations were sampled from different climatic conditions in order to identify the causes of color variation. The study evaluated the heartwood presence, grain pattern, distance from pith, height within the tree, and effect of drying schedules. The wood color was measured by CIELab* systems.Wood color of Vochysia guatemalensis is a combination of different tonalities of lightness (L), redness (a), and yellowness (b), however, the lightness and yellowness components were the dominant tones. The color of heartwood and sapwood were different before and after drying. A negative relationship was found between a and L, and a and b* in the undried state, but no relationship was found between L* and b. The L index is only correlated with heartwood presence in undried wood. In dried wood, only a relationship between a* and L* is maintained, while other color parameters were affected by climate, drying schedule and heartwood presence, the L* parameter being the most affected. The dried wood displays a lighter surface than the wood before drying. The variations in the dried wood suggest that it is useful to establish dried lots of lumber according to the drying schedule, source and presence of sapwood and heartwood.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.11 n.3 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000300004en10.4067/S0718-221X2009000300004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fast growth plantations tropical species CIElab color systems wood quality
spellingShingle	Fast growth plantations tropical species CIElab color systems wood quality Aguilar-Tova,Diana Moya,Róger Tenorio,Carolina Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
description	Vochysia guatemalensis has been planted over large tropical areas to obtain lumber products. However, compared with naturally-grown material variations in wood color have been noted. In the current research, trees from two 8-year-old fast-grown plantations were sampled from different climatic conditions in order to identify the causes of color variation. The study evaluated the heartwood presence, grain pattern, distance from pith, height within the tree, and effect of drying schedules. The wood color was measured by CIELab* systems.Wood color of Vochysia guatemalensis is a combination of different tonalities of lightness (L), redness (a), and yellowness (b), however, the lightness and yellowness components were the dominant tones. The color of heartwood and sapwood were different before and after drying. A negative relationship was found between a and L, and a and b* in the undried state, but no relationship was found between L* and b. The L index is only correlated with heartwood presence in undried wood. In dried wood, only a relationship between a* and L* is maintained, while other color parameters were affected by climate, drying schedule and heartwood presence, the L* parameter being the most affected. The dried wood displays a lighter surface than the wood before drying. The variations in the dried wood suggest that it is useful to establish dried lots of lumber according to the drying schedule, source and presence of sapwood and heartwood.
author	Aguilar-Tova,Diana Moya,Róger Tenorio,Carolina
author_facet	Aguilar-Tova,Diana Moya,Róger Tenorio,Carolina
author_sort	Aguilar-Tova,Diana
title	Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
title_short	Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
title_full	Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
title_fullStr	Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
title_full_unstemmed	Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis
title_sort	wood color variation in undried and kiln-dried plantation-grown lumber of vochysia guatemalensis
publisher	Universidad del Bío-Bío
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000300004
work_keys_str_mv	AT aguilartovadiana woodcolorvariationinundriedandkilndriedplantationgrownlumberofvochysiaguatemalensis AT moyaroger woodcolorvariationinundriedandkilndriedplantationgrownlumberofvochysiaguatemalensis AT tenoriocarolina woodcolorvariationinundriedandkilndriedplantationgrownlumberofvochysiaguatemalensis
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Wood color variation in undried and kiln-dried plantation-grown lumber of Vochysia guatemalensis

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