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世界竹藤通讯  2017, Vol. 15 Issue (4): 9-12,58     https://doi.org/10.13640/j.cnki.wbr.2017.04.002
  学术园地 本期目录 | 过刊浏览 | 高级检索 |
青皮竹和慈竹不同发育期竹材解剖特征研究
李兴会, 罗蓓, 何蕊
西南林业大学材料工程学院 昆明 650224
Anatomical Characteristics of Bambusa texlilis McClure and Bambusa emeiensis in Different Growth Periods
Li Xinghui, Luo Bei, He Rui
College of Material Engineering, Southwest Forestry University, Kunming 650224, China
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摘要 实验观测了青皮竹(Bambusa textilis McClure)和慈竹(B.emeiensis)不同发育期(竹笋、幼竹和成年竹)的解剖特征,包括组织比量、基本组织、维管束及纤维形态的变化。结果表明,随着发育成熟,2个竹种的基本组织比量都呈现下降趋势,而输导组织和纤维组织则呈现不同程度的增长趋势。基本组织的减小量基本上等于纤维组织和输导组织的增加量。在同一发育期慈竹的维管束密度大于青皮竹。纤维长度随着竹龄的增加而变长和增宽,在同一发育期,纤维细胞的直径中部大于基部和顶部。竹子发育期间,纤维直径、双壁厚、长宽比及腔径比都随竹龄增加而增大,壁腔比则呈现下降趋势。2种竹材维管束的径向宽度均大于其弦向宽度。
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李兴会
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关键词 青皮竹慈竹解剖特征组织比量纤维维管束    
Abstract:The anatomical characteristics of Bambusa textilis McClure and B. emeiensis, including tissue proportion, fundamentalist tissue, vascular bundles and fiber morphology, were observed and studied through experiments for their different growth periods, i. e., shoot, young bamboo and mature bamboo. The results indicated that the fundamental tissue proportion of the two bamboo species decreased with increasing culm age, while the vascular tissue and fiber tissue increased in amount with increasing culm age; the decreased amount of fundamental tissue was basically compensated by the increased amount of fiber tissue and vascular tissue. The density of vascular bundle was greater in B. texlilis than in B. emeiensis when they were in the same growth period. Fiber length grew longer and wider with the culm age increasing, and fiber cell diameter was larger at middle height than at the culm base and top. In the culm growth, the fiber diameter, fiber wall thickness, aspect ratio, and the ratio between lumen diameter and fiber width increased with the increasing culm age, while the ratio between the double wall thickness and lumen diameter decreased with the increasing age. The vascular bundles of the both species have the larger radial width than the tangential width.
Key wordsBambusa textilis McClure    Bambusa emeiensis    anatomical characteristics    tissue proportion    fiber    vascular bundle
     出版日期: 2018-05-21
基金资助:西南林业大学科技创新基金(编号:Z16007)。
通讯作者: 罗蓓(1979-),女,博士,讲师,研究方向为木材解剖学。E-mail:49346467@qq.com     E-mail: 49346467@qq.com
作者简介: 李兴会(1995-),女,本科在读学生,研究方向为木材科学。E-mail:2466469755@qq.com。
引用本文:   
李兴会, 罗蓓, 何蕊. 青皮竹和慈竹不同发育期竹材解剖特征研究[J]. 世界竹藤通讯, 2017, 15(4): 9-12,58.
Li Xinghui, Luo Bei, He Rui. Anatomical Characteristics of Bambusa texlilis McClure and Bambusa emeiensis in Different Growth Periods. World Bamboo and Rattan, 2017, 15(4): 9-12,58.
链接本文:  
http://www.cafwbr.net/CN/10.13640/j.cnki.wbr.2017.04.002      或      http://www.cafwbr.net/CN/Y2017/V15/I4/9
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