Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood
An anatomical, physical and physiological study of the heartwood and sapwood of Gliricidia sepium ( Jacq.) Steud. was carried out using six trees collected during the rainy and dry seasons in a dry forest from Veracruz, México. Stem segments were cut at 1,30 m above the ground for obtaining wood sam...
| Principais autores: | , , |
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| Formato: | Online |
| Idioma: | spa |
| Publicado em: |
Instituto de Ecología, A.C.
2016
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| Acesso em linha: | https://myb.ojs.inecol.mx/index.php/myb/article/view/1192 |
| _version_ | 1799769240376442880 |
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| author | Quintanar-Isaías, Alejandra Ángeles, Guillermo Zavala-Hurtado, José Alejandro |
| author_facet | Quintanar-Isaías, Alejandra Ángeles, Guillermo Zavala-Hurtado, José Alejandro |
| author_sort | Quintanar-Isaías, Alejandra |
| collection | MYB |
| description | An anatomical, physical and physiological study of the heartwood and sapwood of Gliricidia sepium ( Jacq.) Steud. was carried out using six trees collected during the rainy and dry seasons in a dry forest from Veracruz, México. Stem segments were cut at 1,30 m above the ground for obtaining wood samples for macroscopic and microscopic observations, and for the water content and specific gravity analyses. Following classical microtechnique procedures and international classifications and nomenclatures for describing microscopic features, wood samples and permanent slides of wood sections and dissociated material were made. Estimations of vulnerability and collapse indexes, and K h-theoretical were made from vessel diameter, vessel number and effective vessel area. Analysis of variance and principal components analysis showed that some fiber, vessels, rays and pit features influenced differences among trees, sites and seasons. Although variability of those features is relatively low, it would explain the sapwood and heartwood stability during changes in the hydric regime caused by dryness and rain. Collapse and mvulnerability indexes, as well as K esomorphic xylem quite vulnerable h show ato embolisms, but with high success to develop in disturbed environments. This could be explained by the presence of tyloses, abundant axial parenchyma and high values of specific gravity that assure resistance of fiber and vessel cell walls to collapse. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1192 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-11922022-11-30T00:24:14Z Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood Anatomía, índices físicos e hidráulicos de la madera de Gliricidia sepium (Jacq.) Steud. Quintanar-Isaías, Alejandra Ángeles, Guillermo Zavala-Hurtado, José Alejandro Wood anatomy moisture content specific gravity vulnerability and collapse indices y Kh-teorethical. Anatomía de la madera contenido de humedad densidad relativa índices de vulnerabilidad y colapso y Kh-teórica. An anatomical, physical and physiological study of the heartwood and sapwood of Gliricidia sepium ( Jacq.) Steud. was carried out using six trees collected during the rainy and dry seasons in a dry forest from Veracruz, México. Stem segments were cut at 1,30 m above the ground for obtaining wood samples for macroscopic and microscopic observations, and for the water content and specific gravity analyses. Following classical microtechnique procedures and international classifications and nomenclatures for describing microscopic features, wood samples and permanent slides of wood sections and dissociated material were made. Estimations of vulnerability and collapse indexes, and K h-theoretical were made from vessel diameter, vessel number and effective vessel area. Analysis of variance and principal components analysis showed that some fiber, vessels, rays and pit features influenced differences among trees, sites and seasons. Although variability of those features is relatively low, it would explain the sapwood and heartwood stability during changes in the hydric regime caused by dryness and rain. Collapse and mvulnerability indexes, as well as K esomorphic xylem quite vulnerable h show ato embolisms, but with high success to develop in disturbed environments. This could be explained by the presence of tyloses, abundant axial parenchyma and high values of specific gravity that assure resistance of fiber and vessel cell walls to collapse. Se presentan los resultados de un estudio de la variación anatómica y de los índices físicos e hidráulicos de la madera de albura y duramen de seis árboles de Gliricidia sepium ( Jacq.) Steud. colectados en épocas de secas y lluvias de una selva baja de Veracruz, México. De rodajas cortadas a 1 ,30 m del suelo, se hicieron probetas de diversos tamaños para estudiar el contenido de humedad, la densidad relativa y la anatomía macroscópica y microscópica. Se usaron cubos con los que se elaboraron preparaciones fijas de cortes y material disociado, siguiendo los protocolos clásicos de laboratorio, así como las clasificaciones y nomenclaturas internacionales para los elementos celuusando el diámetro, la densidad y el área efectiva de vasos. Los análisis de varianza y de compolares. Los cálculos de índices de vulnerabilidad, de resistencia al colapso y K h-teórica se hicieron nentes principales mostraron que las diferencias entre árboles, zonas y estaciones están dadas por algunas características de las fibras, los vasos, los radios y las punteaduras. Aunque la variación en estas características es baja, explicaría la estabilidad dimensional de la albura y el duramen a los cambios de régimen hídrico ocasionados por la sequía y la lluvia. Los índices de resistencia al colapso pero con mucho éxito para desarrollarse en ambientes perturbados, lo que podría estar explicado por y de vulnerabilidad, así como la K h muestran un xilema mesomórfico muy vulnerable a embolismos, la presencia de tílides, abundante parénquima axial y valores altos de la densidad relativa que aseguran resistencia de las paredes de los vasos y fibras al colapso. Instituto de Ecología, A.C. 2016-08-30 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/1192 10.21829/myb.2009.1521192 Madera y Bosques; Vol. 15 No. 2 (2009): Otoño 2009; 71-91 Madera y Bosques; Vol. 15 Núm. 2 (2009): Otoño 2009; 71-91 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/1192/1371 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Quintanar-Isaías, Alejandra Ángeles, Guillermo Zavala-Hurtado, José Alejandro Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title | Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title_full | Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title_fullStr | Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title_full_unstemmed | Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title_short | Anatomy, hydraulic and physical indexes of Gliricidia sepium (Jacq.) Steud. wood |
| title_sort | anatomy, hydraulic and physical indexes of gliricidia sepium (jacq.) steud. wood |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/1192 |
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