Effect of Vascular Bundles and Fiber Sheaths in Nodes and Internodes of Gigantochloa apus Bamboo Strips on Tensile Strength

Bamboo culm is in the form of a tube/pipe, composed internodes which are bounded by partition/diaphragm (node). Anatomically, bamboo vascular bundles and parenchyma ground tissue. One constituents fibers that grouped to fiber sheath. The anatomical structure nodes thought influence strength strips, including tensile strength. This study aimed determine characteristics (distribution percentage) their effects on density Gigantochloa apus strips with without nodes. culms were divided into three parts (outer, middle, inner) along radial direction. results showed distribution percentage sheaths decreased significantly from outer inner layer. also had Furthermore, number (in transverse plane) was greater than orientation at irregular observed tangential planes, where direction not only axial direction, but directions. caused G. be lower internodes.