3种华南商用藤材的解剖特性  

Anatomical Characteristics of Three Commercial Rattan Canes in South China

作　　者：江泽慧[1] 吕文华[1] 费本华[1] 任海青[1] 吴玉章[1] 王朝晖[1] 

机构地区：[1]中国林业科学研究院,北京100091

出　　处：《林业科学》2007年第1期121-126,共6页Scientia Silvae Sinicae

基　　金：国家"十五"攻关项目"棕榈藤种质资源培育及利用技术"(2001BA506B04-04)

摘　　要：Study on the basic anatomical characteristics of rattan canes will give great guidance to their classification, exploitation, utilization, processing and improvement. The basic anatomical characteristics and their variation in cane of three commercial rattans in South China, i.e. Calamus simplicifolius, Calamus tetradactylus and Daemonorops margaritae were investigated. Results show that: 1) The variation at the height of rattan canes is small, while the variation along the radius direction of rattan canes is significant. 2) The fiber length, fiber ratio and distributing density of vascular bundle in the cross section decrease from cortex to core, while the fiber width, vessel element length and width, parenchyma ratio, vessel ratio, vascular bundle size, metaxylem vessel diameter and fiber microfibrillar angle in the cross section increase from cortex to core. The cellulose crystallinity of stem core is bigger than that of the cortex. 3) All these three rattan possess the cane structure characteristics of good commercial rattan cane. As for the anatomical structure, C. simplicifolius is the best and C. tetradactylus is better than D. margaritae. 4) According to the anatomic study, the penetration approach of rattan cane is mainly the longitudinal axial passage around the core; it is an important research direction to improve the penetrability of rattan cane.Study on the basic anatomical characteristics of rattan canes will give great guidance to their classification, exploitation, utilization, processing and improvement. The basic anatomical characteristics and their variation in cane of three commercial rattans in South China, i.e. Calamus simplicifolius, Calamus tetradactylus and Daemonorops margaritae were investigated. Results show that： 1 ） The variation at the height of rattan canes is small, while the variation along the radius direction of rattan canes is significant. 2） The fiber length, fiber ratio and distributing density of vascular bundle in the cross section decrease from cortex to core, while the fiber width, vessel element length and width, porenchyma ratio, vessel ratio, vascular bundle size, metaxylem vessel diameter and fiber microfibrillar angle in the cross section increase from cortex to core. The cellulose crystallinity of stem core is bigger than that of the cortex. 3） All these three rattan possess the cane structure characteristics of good commercial rattan cane. As for the anatomical structure, C. simplicifolius is the best and C. tetradactylus is better than D. margarine. 4） According to the anatomic study, the penetration approach of rattan cane is mainly the longitudinal axial passage around the core; it is an important research direction to improve the penetrability of rattan cane.

关 键 词：棕榈藤 解剖特性 变异 材质 利用 

分 类 号：S781.1[农业科学—木材科学与技术]