引用本文:[点击复制]
[点击复制]
【打印本页】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
杨树无性系木材纤维形态特征及其径向变异的研究
0
()
摘要:
以生长在安徽省天长市城西林场的5种不同的杨树无性系人工林木材H22、Z9、Z3、B3和107 为对象,对木材纤维形态特征进行了研究,并分析了其径向遗传变异规律.结果表明,5个无性系杨树的纤维长度、宽度以及长宽比在幼龄期较小,但随着生长轮的增加,呈增大的趋势,并在达到一定的年龄后保持稳定波动或略有减小;腔径、双壁厚以及壁腔比的径向变化规律总体上也是随着生长轮呈增大趋势,可能受到早晚材的影响,部分无性系的双壁厚和壁腔比变化波动较大.
关键词:  杨树无性系  纤维形态特征  径向变异  杨树无性系  人工林木材  纤维形态特征  径向变异  研究  Poplar Clones  Different  Fiber Morphology  Variation  变化规律  影响  晚材  壁腔比  壁厚  波动  稳定  年龄  趋势  生长轮  幼龄期
DOI:
修订日期:2005-02-02
基金项目:安徽省自然科学基金 , 安徽省优秀青年科技基金
Radial Variation of Fiber Morphology of Different Poplar Clones
()
Abstract:
In this paper,5 different poplar clones grown in the forest station in the suburb of Tianchang city of Anhui Province were selected as the materials to study the radial variation of fiber length, fiber width, lumen diameter, double cell wall thickness, the ratio of fiber length to width, the ratio of cell wall to cell cavity and microfibrillar angle. The results are as follows: 1) From pith outward, the fiber length, the fiber width and the ratio of fiber length to fiber width of 5 poplar clones all increase with the increase of growth rings,reach maximum in a certain year and then decrease or level off.The suitable clone to make paper is Z9 and H22 according to the paper making properties.2) The lumen diameter, double cell wall thickness and the ratio of cell wall to cell cavity all increase with the increase of growth rings. The ratio of cell wall to cell cavity ranged from 0.28 to 0.31, and the B3 clone is is suitable for paper material.
Key words:  poplar clones,fiber morphology,radial variation

用微信扫一扫

用微信扫一扫