Anatomy and properties of woods in the family fagaceae in Thailand

Name: Phutsadee Phromprasit

LCSH: Kasetsart University -- Dissertations. Ph.D. (Botany) 2017

Classification :.LCCS: QK647

LCSH: Kasetsart University. Department of Botany -- Dissertations

LCSH: Wood -- Anatomy -- Thailand

LCSH: Trees -- Thailand

Abstract: The wood anatomical characteristics and properties of some Fagaceae in Thailand were investigated. The specimens were sectioned using a sliding microtome. Tissue maceration was also performed using Franklin’s solution. Permanent slides of wood samples were prepared. The samples of wood sections and macerated cells were observed under a light microscope and under scanning electron microscope. Hardness, density and specific gravity of woods were also investigated. The results showed that the general characters of wood are fine to very fine textures without lustre and ordor. Growth ring boundaries are indistinct or distinct. Woods are diffuse porous. Vessels are mostly solitary and arranged in a diagonal, radial pattern or dendritic pattern. Perforation plates are simple in all species. Tyloses are commonly present in vessel but absent in some species. Vasicentric tracheids are observed in all species. Gelatinous fibre occurs in some species of genus Castanopsis and Quercus. Axial parenchyma is paratracheal and apotracheal. Rays have two distinct sizes. The narrow rays are uniseriate, sometimes biseriate. The larger rays are aggregate rays and were found in all genera except in some Castanopsis species, their rays are only uniseriate and biseriate. Prismatic crystals occur in chambered rays and axial parenchyma cells or only axial parenchyma cells. Druse crystals occur in axial parenchyma cells of some species in genera Lithocarpus and Quercus. Wood densities are 0.32 – 1.17 g/cm3 at 12% moisture content. Specific gravities are 0.41 – 0.98. The hardness values are 1,797.69 – 9,665.31 N. Wood density positively correlates to fibre wall thickness. Fibre wall thickness and fibre length showed positive correlation to specific gravity. Conversely, fibre diameter showed negative correlation to specific gravity. Moreover, there are significantly relationships between fibre length and wood density. The result of this study revealed that anatomical characteristics relate to wood properties.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Prasart Kermanee

Role: Thesis Advisor

Name: Srunya Vajrodaya

Role: Thesis Co-Advisor

Created: 2017

Modified: 2023-06-23

Issued: 2023-06-23

วิทยานิพนธ์/Thesis

application/pdf

URL: https://kasetsart.idm.oclc.org/login?url=https://www.lib.ku.ac.th/KUthesis/2560/phutsadee-phr-all.pdf

CallNumber: QK647.P48

eng

Spatial: Thailand

DegreeName: Doctor of Philosophy

Level: Doctoral Degree

Descipline: Botany

Grantor: Kasetsart University

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