| Revista: | Maderas : ciencia y tecnología |
| Base de datos: | |
| Número de sistema: | 000544702 |
| ISSN: | 0718-221X |
| Autores: | Kord, Behzad1 Hassankhani, Mehdi2 Pourpasha, Mohammad Mehdi2 |
| Instituciones: | 1Standard Research Institute, Faculty of Chemistry and Petrochemical Engineering, Karaj. Irán 2Islamic Azad University, Department of Mathematics Chalous Branch, Chalous. Irán |
| Año: | 2015 |
| Periodo: | Oct |
| Volumen: | 17 |
| Número: | 4 |
| Paginación: | 919-930 |
| País: | Chile |
| Idioma: | Inglés |
| Resumen en inglés | This paper describes the development of model to predict the within-tree variation of wood density, shrinkage, fiber length, fiber diameter and cell wall thickness from pith-to-bark and bottom-to-top, using data collected from a 13-year-old paulownia (Paulownia fortunie) stand where trees were planted in an experimental plantation in Iran. The sample disks were taken from each tree to examine the wood density, shrinkage, fiber length, fiber diameter and cell wall thickness variation from pith to bark at 5, 25, 50 and 75% of the total tree height. The study was laid out in a randomized complete block design. Linear prediction model were developed using longitudinal direction (bottom-to-top) and radial direction (pith-to-bark) indices as explanatory variables. The results indicated that, the wood density, shrinkage, fiber length, fiber diameter and cell wall thickness, considerably changes from pith to bark and from the base upwards. Based on the final model, it was found that the physical and biometrical properties were significantly influenced by longitudinal and radial directions. The model equation were based on the model used to describe the within-tree variation in the wood density, shrinkage, fiber length, fiber diameter and cell wall thickness of Paulownia, and is functions of radial and longitudinal directions. |
| Keyword: | Density, Fiber length, Paulownia fortunie, Shrinkage, Within-tree variation |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
