文献类型：期刊文献

中文题名：毛白杨无性系纤维特性及微纤丝角的遗传分析

英文题名：Genetic Analysis of Fiber Traits and Microfibrillar Angles on Clones of Populus tomentosa

作者：张冬梅[1] 张志毅[2] 黄荣凤[3]

第一作者：张冬梅

机构：[1]上海市园林科学研究所;[2]北京林业大学林木花卉遗传育种教育部重点实验室;[3]中国林业科学研究院木材工业研究所

年份：2007

卷号：43

期号：4

起止页码：129-133

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金项目"纸浆材毛白杨无性系材质性状的遗传分析"(30200216);国家863项目(2002AA241071)资助

语种：中文

中文关键词：毛白杨;纸浆材;纤维特性;微纤丝角;遗传分析

外文关键词：Populus tomentosa ; pulpwood; fiber forms ; microfibrillar angles ; genetic analysis

分类号：S781.1

摘要：25 clones(6 trees from each clone) were sampled (aged 15 years) from clone test stand of Populus tomentosa. The fiber forms (fiber length, fiber width, ratio of fiber length and fiber width, fiber wall thinckness, fiber lumen diameter, ratio of 2 fiber wall thinckness and fiber lumen diameter, ratio of fiber lumen diameter and cell diameter) were analysed. Variance analysis showed that these 7 traits were significantly different among clones at 0.05 level. 2 characters, Fiber width and fiber lumen diameter, were strongly inherited, and others 5 traits were under moderate genetic control. The selection could be conducted effectively among clones. The variation analysis of microfibrillar angles showed that there was significantly difference among clones at 0.05 level. The clones repeatability (0.961) and single repeatability (0.651) of microfibrillar angles indicated that the character was under genetic control. And selection could be conducted effectively among clones and within clones. The variance analysis of transverse section tissue percentage include vessel percentage, fiber percentage and wood ray percentage of Populus tomentosa were perfected. All traits except vessel percentage were observed significant clonal differences at 0.05 level. The values of clone repeatability of vessel percentage and fiber percentage were 0.437 and 0.336 separately, and the values of clone repeatability of wood ray percentage was 0.711. This showed that genetic control for wood ray percentage is feasible.
25 clones（6 trees from each clone） were sampled （aged 15 years） from clone test stand of Populus to mentosa. The fiber forms （fiber length, fiber width, ratio of fiber length and fiber width, fiber wall thinckness, fiber lumen diameter, ratio of 2 fiber wall thinckness and fiber lumen diameter, ratio of fiber lumen diameter and cell diameter） were analysed. Variance analysis showed that these 7 traits were significantly different among clones at 0.05 level. 2 characters, Fiber width and fiber lumen diameter, were strongly inherited, and others 5 traits were under moderate genetic control. The selection could be conducted effectively among clones. The variation analysis of microfibrillar angles showed that there was significantly difference among clones at 0.05 level. The clones repeatability （0.961 ） and single repeatability （0.651 ） of microfibrillar angles indicated that the character was under genetic control. And selection could be conducted effectively among clones and within clones. The variance analysis of transverse section tissue percentage include vessel percentage, fiber percentage and wood ray percentage of Populus tomentosa were perfected. All traits except vessel percentage were observed significant clonal differences at 0.05 level. The values of clone repeatability of vessel percentage and fiber percentage were 0. 437 and 0. 336 separately, and the values of clone repeatability of wood ray percentage was 0.711. This showed that genetic control for wood ray percentage is feasible.