Compression wood in Pinus radiata II: Density and chemical composition
Ten 22 year old radiata pine trees growing in two stands in Chile, one in clay and the other in humid sand soils showing some lean, were assessed for chemical composition and wood density of compression wood. Significant differences in type of wood in density (33 kg/m³), lignin (1.944 %), alpha-cell...
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| Lenguaje: | English |
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Universidad del Bío-Bío
2009
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oai:scielo:S0718-221X20090002000052009-09-01Compression wood in Pinus radiata II: Density and chemical compositionDíaz-vaz,J. EAnanías,R.ARodríguez,STorres,MFernández,APoblete,H Compression wood radiata pine basic density lignin holocellulose alpha-cellulose pentose ethanol-toluene ash Ten 22 year old radiata pine trees growing in two stands in Chile, one in clay and the other in humid sand soils showing some lean, were assessed for chemical composition and wood density of compression wood. Significant differences in type of wood in density (33 kg/m³), lignin (1.944 %), alpha-cellulose (-2.634 %), ethanol toluene extractives (0.567 %) and pentose (0.742 %) were found between matched sample of compression and opposite woods. Differences in juvenile and mature wood were significant for both density (-4 kg/m³) and pentose (1.628 %), and site differences were found for wood density (28 kg/m³), extractives (0.978 %) and apparent for alpha cellulose (1.223%). In comparison with other studies, our results suggested that the compression wood formed from trees with light visible lean corresponded to a mild compression class.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.11 n.2 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000200005en10.4067/S0718-221X2009000200005 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Compression wood radiata pine basic density lignin holocellulose alpha-cellulose pentose ethanol-toluene ash |
| spellingShingle |
Compression wood radiata pine basic density lignin holocellulose alpha-cellulose pentose ethanol-toluene ash Díaz-vaz,J. E Ananías,R.A Rodríguez,S Torres,M Fernández,A Poblete,H Compression wood in Pinus radiata II: Density and chemical composition |
| description |
Ten 22 year old radiata pine trees growing in two stands in Chile, one in clay and the other in humid sand soils showing some lean, were assessed for chemical composition and wood density of compression wood. Significant differences in type of wood in density (33 kg/m³), lignin (1.944 %), alpha-cellulose (-2.634 %), ethanol toluene extractives (0.567 %) and pentose (0.742 %) were found between matched sample of compression and opposite woods. Differences in juvenile and mature wood were significant for both density (-4 kg/m³) and pentose (1.628 %), and site differences were found for wood density (28 kg/m³), extractives (0.978 %) and apparent for alpha cellulose (1.223%). In comparison with other studies, our results suggested that the compression wood formed from trees with light visible lean corresponded to a mild compression class. |
| author |
Díaz-vaz,J. E Ananías,R.A Rodríguez,S Torres,M Fernández,A Poblete,H |
| author_facet |
Díaz-vaz,J. E Ananías,R.A Rodríguez,S Torres,M Fernández,A Poblete,H |
| author_sort |
Díaz-vaz,J. E |
| title |
Compression wood in Pinus radiata II: Density and chemical composition |
| title_short |
Compression wood in Pinus radiata II: Density and chemical composition |
| title_full |
Compression wood in Pinus radiata II: Density and chemical composition |
| title_fullStr |
Compression wood in Pinus radiata II: Density and chemical composition |
| title_full_unstemmed |
Compression wood in Pinus radiata II: Density and chemical composition |
| title_sort |
compression wood in pinus radiata ii: density and chemical composition |
| publisher |
Universidad del Bío-Bío |
| publishDate |
2009 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000200005 |
| work_keys_str_mv |
AT diazvazje compressionwoodinpinusradiataiidensityandchemicalcomposition AT ananiasra compressionwoodinpinusradiataiidensityandchemicalcomposition AT rodriguezs compressionwoodinpinusradiataiidensityandchemicalcomposition AT torresm compressionwoodinpinusradiataiidensityandchemicalcomposition AT fernandeza compressionwoodinpinusradiataiidensityandchemicalcomposition AT pobleteh compressionwoodinpinusradiataiidensityandchemicalcomposition |
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