慈竹不同变异类型的纤维形态研究  

Fiber morphology of different variation types of Neosinocalamus affinis(Rendle) Keng f.

作　　者：甘小洪[1,2] 陈凤[1,2] 林树燕[3] 丁雨龙[3] 谢海[4] 

机构地区：[1]西华师范大学生命科学学院,四川南充637009 [2]西华师范大学,西南野生动植物资源保护教育部重点实验室,四川南充637009 [3]南京林业大学竹类研究所,江苏南京210037 [4]攀枝花学院生物与化学工程学院,四川攀枝花617000

出　　处：《南京林业大学学报（自然科学版）》2013年第4期99-104,共6页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业公益性行业科研专项项目(201004005);“十一五”国家科技支撑计划(2006BAD19B02)

摘　　要：通过对四川省青神县慈竹不同变异类型的纤维形态指标进行观测,比较分析了不同变异类型纤维形态特征的差异及变异规律,并对其利用价值进行了探讨。结果表明:慈竹6种类型的平均纤维长度都大于1.6 mm,除罗汉慈外均大于毛竹;慈竹、琴丝慈和蛇头慈纤维长度分布的最大频率出现在2.0～3.0 mm之间,其余慈竹类型的纤维长度分布最大频率出现在1.0～2.0 mm之间。除罗汉慈外,其余慈竹类型的纤维长宽比平均值均大于100,且大于毛竹。慈竹6种类型纤维平均壁腔比在1.77～3.96之间,均小于毛竹。在轴向上,慈竹不同类型纤维的长度、宽度、长宽比和腔径的变异规律随变异类型的不同而不同,其纤维壁厚和壁腔比则具有相似的变异规律;在径向上,慈竹不同类型竹壁内侧的纤维长度、腔径均大于外侧纤维,其竹壁内侧的纤维宽度、长宽比、壁厚和壁腔比大多小于外侧。说明除罗汉慈外慈竹其余变异类型的竹材纤维质量均优于毛竹,琴丝慈的竹材纤维质量优于慈竹,其造纸性能最佳。The fiber morphologies of six variation types of Neosinocalamus affinis （Rendle） Keng f. at Qingshen county of Sichuan province were investigated and compared each other , and their utilization value were also examined. The av- erage length of fibers of six variation types was all longer than 1.6 mm, and longer than that of Moso except ＇ Luo- hanci＇. The maximum frequency of fiber length distribution of N. affinis, Neosinocalamus affinis cv. flavidorivens and ＇ Shetouci＇, was within 2. 0 - 3.0 mm, and that of other variations was within 1.0 - 2. 0 mm. The average length/width ratio of different variations except for ＇ Luohanci＇ was bigger than 100, and bigger than that of Moso. The average wall/ lumen ratio of all fiber type was from 1.77 to 3.96, and smaller than that of Moso. Longitudinally, the variation rules of fiber length, width, and length/width ratio and lumen of all variation types, were different among different variation types, but that of fiber wall thickness and wall/lumen ratio were similar. Radically, the variation rules of all fiber mor- phological indexes of all variation types were similar, and the length and lumen of fibers in the inner part of culm wall were all bigger than that in the outer, but the fiber width, length/width ratio, and wall thickness and wall/lumen ratio in inner part were all smaller than that in the outer. The results showed that they are good for paper-making except for ＇ Luohanci＇ , and the property for making the pulp and paper of N. affinis cv. flavidorivens is the best.

关 键 词：慈竹 变异类型 纤维形态 利用价值 

分 类 号：S795.5[农业科学—林木遗传育种]