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Capillary Flow in Different Cells of Ginkgo Biloba, Diospyros Kaki and Ailanthus Altissima  

Chun, Su Kyoung (Department of Forest Biomaterials Engineering, Kangwon National University)
Publication Information
Journal of the Korea Furniture Society / v.26, no.2, 2015 , pp. 179-185 More about this Journal
Abstract
A study was carried out to observe the 1% aqueous safranine solution flow speed in longitudinal and radial directions of softwood G. biloba, ring-porous wood A. altissima, and diffuse- porouswood D. kaki. In radial direction, ray cells and in longitudinal direction tracheids, vessel and wood fiber were considered for the measurement of liquid penetration speed at less than 12% moisture contents (MC). The length, lumen diameter, pit diameter, end wall pit diameter and the numbers of end wall pits determined for the flow rate. The liquid flow in the those cells was captured via video and the capillary flow rate in the ones were measured. Vessel in hardwood species and tracheids in softwood was found to facilitate prime role in longitudinal penetration. Radial flow speed was found highest in ray parenchyma of G. biloba. Anatomical features like the length and diameter, end-wall pit numbers of ray parenchyma were found also responsible fluid flow differences. On the other hand, vessel and fiber structure affected the longitudinal flow of liquids. Therefore, the average liquid penetration depth in longitudinal tracheids of G. biloba was found the highest among all cells considered in D. kaki and A. altissima.
Keywords
Cappillary flow rate; Ginkgo biloba; Diospyros kaki and Ailanthus altissima; Tracheids; Vessel; Wood fiber; Ray prenchyma; Pit aperture; Numbers of endwall pits; Cell lumina diamter; Cell length;
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