Comparative culms anatomical and properties of 4 bamboos from Kanchanaburi Province
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Abstract
The aim of this study was to investigate wood anatomy and wood properties. The collection of four bamboo culms including Dendrocalamus brandisii (Munro) Kurz, Dendrocalamus copelandii (Gamble ex Brandis) N.H. Xia & Stapleton, Gigantochloa auriculata Kurz and Schizostachyum pergracile (Munro) R.B. Majumdar was made from Plant Genetic Protection Area of RSPG, Vajiralongkorn Dam, Thong Pha Phum district, Kanchanaburi province. The specimens were prepared by sliding microtome and were examined under light microscope. Wood density and modulus of rupture were determined on conditioned at 11 % relative humidity following as ISO standards. The results show that the vascular bundles of D. brandisii , D. copelandii and G. auriculata were classified under Type III (broken-waist type) but the bundle size were different depending on the species while S. pergracile was Type II (tight-waist type). The highest density was found in G. auriculata and followed by S. pergracile, D. brandisii and D. copelandii, (0.8367, 0.7533, 0.6533, 0.4833 g/cm3) respectively. The modulus of rupture of S. pergracile was the highest followed by G. auriculata, D. brandisii and D. copelandii, (212.333, 192.550, 164.083, 102.570 MPa) respectively. However, multiple comparison test found that S. pergracile and G. auriculata with excellent density followed by D. brandisii. This results indicated that S. pergracile and G. auriculata are more suitable for many construction applications such as plywood, laminated wood or oriented strand board
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References
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