摘要
利用多种方法和技术,从壁厚、腔径、壁腔比、结晶度和细胞壁层次等方面对毛竹茎秆纤维细胞壁的变化规律进行了研究。结果表明,一年之中纤维细胞壁的积累主要集中在3-6月份;随着年龄的增加,纤维细胞壁将逐渐加厚,在前3年其加厚趋势明显,以后细胞壁的厚度逐渐趋于稳定;纤维细胞壁多层结构的形成具有类似于树木年轮的生长规律;而结晶度的变化反映了纤维细胞次生壁形成过程中各种成分的沉积规律。
From the view of wall thickness, lumen radial, the ratio of wall thickness to lumen radial, and crystal degree and wall lamellae, the variation of fiber wall in Phyllostachys edulis culms was studied using several methods. The results were as follows： the growing season of bamboo fiber was mainly from March to June in a year, and fiber wall underwent continual thickening with aging. In the first 3 years, fiber wall bad a dominant thickening every year. Afterwards, the degree of thickening would decrease gradually. The multilamellate structure of fiber in alternate arrangement of narrow and broad lamellae could attribute to the regular change of climate in a year during secondary wall formation like the growth ring of dicotyledonous woody plants. The variation of crystal degree of fiber wall reflected the aggradation law of all kinds of chemical components during secondary wall formation of bamboo fiber.
出处
《林业科学研究》
CSCD
北大核心
2006年第4期457-462,共6页
Forest Research
关键词
毛竹
纤维
次生壁
结晶度
Phyllostachys edulis
fiber
secondary wall
crystal degree
