Texture of the Four Typical Thick-Growing Woody Bamboos in Yunnan

By means of measuring the vascular bundle density and fiber coverage and analyzing their distributions, it was recognized that the texture of the four typical thick-growing woody bamboos in Yunnan, Dendrocalamus giganteus, D. brandisii, D. membranaceus and Bambusa lapidea, was quite different from each other. The texture is in homogeneous along both radial and longitudinal directions within a stem. The inhomogeneity along radial direction is greater than that along the longitudinal direction, while the homogeneous degree at the root part of a stem is better than that at the top part. Meanwhile, although the vascular bundle density and fiber distribute in a similar way, there is no positive relevance between them. These results supplied the fundamental background for the industrial utilization of the bamboos in Yunnan.