【摘要】 本文报道了中林— 4 6一杨龄苗木纤维形态测定的结果。其结果表明 ,纤维长度与其着生部位呈近似正态分布规律 ,与其含率呈反相关规律 ;木纤维含率 6 6 5 7% ,其长度平均 833 6 5 μm ,宽度平均 2 0 2 6 μm ,长宽比 4 8 5 5 ,可作造纸原料。同时 ,还表明 ,Ⅰ级苗 (苗高 >3 5m)木纤维长度比Ⅱ级苗 (苗高 2 0～ 3 0m)的木纤维长 174 13μm ,比Ⅲ级苗 (苗高 <2 0m)木纤维长 2 0 3 6 2 μm。由此可见 ,采用集约栽培措施 ,不仅提高苗木质量 ,还可提高其木纤维长度。更多还原

【Abstract】 Tes paper reported the results of the testing on fiber length of one-year old seedling of poplar`Zhonglin 46’.Results show that the length of fiber was nearly normal distribution with their site and reversed correlated with its content,the content of fiber was 66.5%,the average length of fiber was 833.65μm and width 20.26μm,the ratio of length and width was 48.55,which are good resources for paper making.Meanwhile,the fiber length of Ⅰ level seedling(seedling height>3.5m) is 174.13μm longer than that of Ⅱ level seedling(seedling height 2.0-3.0m),and 203.62μm longer then that of Ⅲ level seedling(seedling height<20.m).So,intensive cultivation not only increase the yield and increase the fiber length.更多还原