Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina
The goal of this paper was to characterize fibers and vessel elements in the wood of Nothofagusnervosa (Phil.) Dim. et Mil., Nothofagaceae, (raulí), determining the variation of their lengths in the treein radial and axial orientations and evaluating their variability between trees. Four trees with...
| Những tác giả chính: | , , , , |
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| Định dạng: | Online |
| Ngôn ngữ: | spa |
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Instituto de Ecología, A.C.
2013
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| Truy cập trực tuyến: | https://myb.ojs.inecol.mx/index.php/myb/article/view/330 |
| _version_ | 1799769185107050496 |
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| author | Medina, Andrea A. Dionisio, Natalia M. Laffitte, Lorena N. Andía, Ismael R. Rivera, Stella M. |
| author_facet | Medina, Andrea A. Dionisio, Natalia M. Laffitte, Lorena N. Andía, Ismael R. Rivera, Stella M. |
| author_sort | Medina, Andrea A. |
| collection | MYB |
| description | The goal of this paper was to characterize fibers and vessel elements in the wood of Nothofagusnervosa (Phil.) Dim. et Mil., Nothofagaceae, (raulí), determining the variation of their lengths in the treein radial and axial orientations and evaluating their variability between trees. Four trees with DBH (diameterat breast height) above 40 cm were used from Quilanlahue site, Neuquén, Argentina, from whichsections were removed at three different heights. The north radius of each section was used and microscopicpreparations and macerations were produced every ten years from pith to bark. The characteristicsof fibers and vessel elements were described. The length of both cells was significantly greater inradial orientation from pith to bark. In axial orientation the length of the fiber is variable, while the lengthof vessel elements does not show significant changes. The greatest source of variation was observedin the tree related to the different ages at which wood was formed. A diminishing in the variation coefficientwas observed for the length of fibers and vascular elements from twenty years of age of the tree.Variability among trees was not significant. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-330 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2013 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-3302017-07-08T06:15:20Z Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina Variación radial y axial de longitud de fibras y elementos de vaso en Nothofagus nervosa (Nothofagaceae) de la Patagonia Argentina Medina, Andrea A. Dionisio, Natalia M. Laffitte, Lorena N. Andía, Ismael R. Rivera, Stella M. Wood anatomy wood quality tree age Neuquén wood variability. Anatomía de la madera calidad de madera edad del árbol Neuquén variabilidad de la madera. The goal of this paper was to characterize fibers and vessel elements in the wood of Nothofagusnervosa (Phil.) Dim. et Mil., Nothofagaceae, (raulí), determining the variation of their lengths in the treein radial and axial orientations and evaluating their variability between trees. Four trees with DBH (diameterat breast height) above 40 cm were used from Quilanlahue site, Neuquén, Argentina, from whichsections were removed at three different heights. The north radius of each section was used and microscopicpreparations and macerations were produced every ten years from pith to bark. The characteristicsof fibers and vessel elements were described. The length of both cells was significantly greater inradial orientation from pith to bark. In axial orientation the length of the fiber is variable, while the lengthof vessel elements does not show significant changes. The greatest source of variation was observedin the tree related to the different ages at which wood was formed. A diminishing in the variation coefficientwas observed for the length of fibers and vascular elements from twenty years of age of the tree.Variability among trees was not significant. El objetivo del presente trabajo fue caracterizar las fibras y los elementos de vaso en madera deNothofagus nervosa (Phil.) Dim. et Mil., Nothofagaceae, (raulí), determinando la variación de sus longitudesdentro del árbol, en sentido radial y axial, y evaluando la variabilidad entre árboles. Se trabajó concuatro árboles de DAP superior a 40 cm, del sitio Quilanlahue, Neuquén, Argentina, de los cuales seextrajeron rodajas a tres alturas distintas. Se utilizó el radio de orientación norte de cada una de ellas,realizándose preparados microscópicos y macerados cada diez años desde la médula a la corteza. Sedescribieron las características de fibras y elementos de vaso. La longitud de ambos tipos celularesaumentó de manera significativa en sentido radial de médula a corteza. En sentido axial la longitud defibras aumenta, mientras que la longitud de elementos de vaso no evidencia cambios significativos. Lamayor fuente de variación se presentó dentro del árbol, relacionada con las diferentes edades formativasdel leño. Se observó una disminución del coeficiente de variación para la longitud de fibras y elementosde vaso a partir de los veinte años de edad del árbol. La variabilidad entre árboles no fue significativa. Instituto de Ecología, A.C. 2013-08-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/330 10.21829/myb.2013.192330 Madera y Bosques; Vol. 19 No. 2 (2013): Verano 2013 Madera y Bosques; Vol. 19 Núm. 2 (2013): Verano 2013 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/330/511 Derechos de autor 2015 Madera y Bosques |
| spellingShingle | Medina, Andrea A. Dionisio, Natalia M. Laffitte, Lorena N. Andía, Ismael R. Rivera, Stella M. Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title | Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title_full | Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title_fullStr | Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title_full_unstemmed | Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title_short | Radial and axial variation of fiber and vessel element length in Nothofagus nervosa (Nothofagaceae) of Patagonia Argentina |
| title_sort | radial and axial variation of fiber and vessel element length in nothofagus nervosa (nothofagaceae) of patagonia argentina |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/330 |
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