Permeability of Tectona grandis L. as affected by wood structure

초록

This experiment describes some anatomical features of Tectona grandis L. relating to the variation of liquid permeability in radial and longitudinal directions. Safranine aqueous solution was used to measure the permeability for its brilliant color and staining properties. Even in presence of abundant rays, penetration depth of liquid in radial direction was found very low in comparison with axial flow. Herein ray length and perimeter of cross-sectional area, interparenchymatous pit number and diameter determined the radial permeability. On the other hand, vessel length and diameter, intervessel pit size, and fiber length affected the longitudinal flow of liquids. Following a go-stop-go cycle, penetration speed of liquid decreased over time.

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