Within-Tree and Tree-Age Variation of Selected Anatomical Properties of the Wood of Ugandan-GrownEucalyptus grandis
| Autor: | A. Y. Banana, O. E. Sseremba, P. Mugabi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
040101 forestry
0106 biological sciences Fiber diameter Forestry 04 agricultural and veterinary sciences Plant Science Biology 01 natural sciences Eucalyptus Vessel diameter Horticulture Tree (data structure) Botany 0401 agriculture forestry and fisheries General Materials Science Fiber Axial pattern 010606 plant biology & botany |
| Zdroj: | Forest Products Journal. 66:433-442 |
| ISSN: | 0015-7473 |
| Popis: | The challenges of utilizing Eucalyptus grandis thinnings prompted a study into its anatomical properties with the aim of identifying its potential based on the within-tree axial and tree-age variation. Fiber length, fiber diameter, vessel length, vessel diameter, vessel average, ray height, and ray frequency at 3, 6, 9, and 12 years were studied. Axial sample portions at 25, 50, and 75 percent of tree height were collected from western Uganda and prepared for maceration, microtomy, and microscopy. Analysis of variance and Tukey's test were used to obtain axial and tree-age variation. Fiber length (819 to 1,077 μm) decreased axially in higher tree ages of 6, 9, and 12 years and increased with tree age. Fiber diameter (10 to 13.4 μm) varied inconsistently axially and decreased with tree age. Vessel length had no consistent axial pattern but decreased with tree age (338 to 548 μm). Vessel diameter showed higher values at 75 percent and increased with tree age (93 to 138 μm). Vessel average did not v... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |