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Evaluation of wood properties of four ages of Cedrela odorata trees growing in agroforestry systems with Theobroma cacao in Costa Rica
- Source :
- Agroforestry Systems. 93:973-988
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- The present work studies the morphological, physical, mechanical and chemical properties, decay resistance, preservation and workability of Cedrela odorata wood from trees growing in agroforestry systems with Theobroma cacao at four ages (4-, 5-, 6- and 7-years-old) in Costa Rica. It was found that the morphological properties (heartwood, pith and bark), together with the physical properties (specific gravity, green density, shrinkage and green moisture content) presented few differences at the four ages. The wood from 4-years-old trees was the only exception, showing less resistance in compression, flexion and lateral hardness. The content of lignin, carbon, and extractives in hot water were not affected among the different ages, contrary to the rest of chemical properties. In relation to decay resistance in accelerated tests with the fungus Trametes versicolor, the wood is classified as highly resistant, while with the fungus Lencites acuta it is classified as moderately resistant. As concerns properties related to industrialization, it was found that the wood can be preserved through vacuum-pressure methods obtaining similar results as those from other plantation timbers. As for workability tests, the wood from the 4-years-old trees show acceptable to very poor performance, differing from trees from the other ages.
- Subjects :
- 0106 biological sciences
Agroforestry
Theobroma
Forestry
04 agricultural and veterinary sciences
Biology
biology.organism_classification
01 natural sciences
Cedrela odorata
chemistry.chemical_compound
chemistry
visual_art
040103 agronomy & agriculture
visual_art.visual_art_medium
0401 agriculture, forestry, and fisheries
Lignin
Bark
Pith
Agronomy and Crop Science
Water content
010606 plant biology & botany
Specific gravity
Trametes versicolor
Subjects
Details
- ISSN :
- 15729680 and 01674366
- Volume :
- 93
- Database :
- OpenAIRE
- Journal :
- Agroforestry Systems
- Accession number :
- edsair.doi...........4de1eda14540ad4b214f556c480a881c
- Full Text :
- https://doi.org/10.1007/s10457-018-0194-x