毛竹来鞭的纤维形态特征及差异性  

Comparative study on morphological characters and differences of fiber in Phyllostachys pubescens coming parts of rhizomes among different growth ages

作　　者：刘帅[1] 徐斌[1] 王传贵[1] 朱涛 

机构地区：[1]安徽农业大学林学与园林学院 [2]福建省木雕古典家具产品质量监督检验中心

出　　处：《北京林业大学学报》2014年第3期121-124,共4页Journal of Beijing Forestry University

基　　金："十二五"国家科技支撑计划项目(2012BAD23B0204)

摘　　要：运用显微自动成像技术和双侧Z值检验显著性,对1年生、3年生、5年生毛竹来鞭的纤维形态特征及差异性进行了研究。结果表明:1)地下茎来鞭平均纤维长度698.555μm、纤维直径21.710μm、纤维腔径11.375μm、双壁厚5.167μm、壁腔比0.483、腔径比0.522、长宽比34.723。2)纤维长度与长宽比均有1年生与3年生差异极显著、1年生与5年生差异不显著、3年生与5年生差异极显著的特点,纤维直径与纤维腔径均差异不显著,双壁厚、壁腔比与腔径比均有1年生与3年生差异显著、1年生与5年生差异极显著、3年生与5年生差异不显著的特点。毛竹地下茎来鞭的纤维形态特征符合纸浆材要求,但与双子叶植物相比不是十分优质的原料。Fiber morphological features of Phyllostachys pubescens coming parts of rhizome at 1-, 3- and 5-year-old were examined by digital light microscopy, and the differences among them were analyzed by Z value two-sided test. The results indicated that the average values of fiber length, fiber diameter, fiber lumen diameter, double-wall thickness, ratio of wall thickness to lumen diameter, ratio of lumen diameter to fiber diameter, and ratio of fiber length to width collected from all P. pubescens rhizome samples were 698. 555 μm, 21. 710 μm, 11. 375 μm, 5. 167 μm, 0. 483, 0. 522 and 34. 723 respectively. Both fiber length and ratio of fiber length to width were significantly different between 1- and 3-year-old P. pubescens rhizomes, while the difference was insignificant between 1- and 5-year-old P. pubescens rhizomes. However, comparisons between 3- and 5-year-old rhizomes had showed that the differences were significant at 0. 01 level. No significant differences were found in fiber diameter and lumen diameter among three ages. When it came to double-cell-wall thickness, ratio of wall thickness to lumen diameter, ratio of lumen diameter to fiber diameter, the difference was significant at 0.05 level for 1- and 3-year- old, significant at 0.01 level for 1- and 5-year-old , and was insignificant for 3- and 5-year-old P. pubescens rhizome. Therefore, fiber morphological features of P. pubescens rhizome meet the qualification as resource of paper ＆ pulp, but it still inferior to dicotyledon plants in point view of paper ＆ pulp.

关 键 词：毛竹 地下茎 来鞭 纤维形态 竹龄 

分 类 号：S795[农业科学—林木遗传育种]