文献类型：期刊文献

英文题名：VARIATION OF MICROFIBRIL ANGLE AND DENSITY IN MOSO BAMBOO (PHYLLOSTACHYS PUBESCENS)

作者：Wang, X. Q.[1] Li, X. Z.[1] Ren, H. Q.[1]

第一作者：王小青

通信作者：Ren, HQ[1]|[a0005812e0f3d391949bb]任海青;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2010

卷号：22

期号：1

起止页码：88-96

外文期刊名：JOURNAL OF TROPICAL FOREST SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000274444600011)】；

基金：This work was funded by the National Natural Science Foundation of China (No. 30940056) and the subproject of the National Science and Technology Support Program of China (No. 2006BAD19B04, 2008BADA9B0302). The authors thank GL Tian from the International Center for Bamboo and Rattan, Beijing, China for technical support in carrying out the experiment of X-ray diffraction for MFA determination.

语种：英文

外文关键词：Air-dry density; vertical position; horizontal position

摘要：WANG XQ, LI XZ & REN HQ. 2010. Variation of microfibril angle and density in moso bamboo (Phyllostachys pubescens). The variation patterns of microfibril angle (MFA) and air-dry density with respect to age as well as to different vertical and horizontal positions within the culm were investigated in moso bamboo (Phyllostachys pubescens) of different ages grown in south-eastern China. X-ray diffraction was used to determine the MFA of the culms. Although the analysis of variance indicated that age, height location as well as horizontal layer had significant effects on MFA, the mean MFA varied slightly from 8.17 degrees to 10.51 degrees, regardless of age or positions within the culm, With a coefficient of variation of only 6.7%. The air-dry density varied considerably with age and also within the culm, with the mean values ranging from 0.41 to 1.14 g cm(-3). The air-dry density increased substantially during the initial four years of growth but was almost constant at older ages. The outer layers of the culm had significantly higher density than the inner layers and the top portion of the culm showed generally higher density than the lower portions.