西南林业大学学报2012，Vol.32Issue(6)：88-91,97,5.DOI:10.3969/j.issn.2095-1914.2012.06.018
大青杨树干内导管的变异规律
Variation in Trunk Vessel of Populus ussuriensis
摘要
Abstract
Taking Populus ussuriensis sample trees as objects, the cross-sectional and longitudinal variation of the vessels in the mature (18 -48 years old) tree stems was studied from the microstructure point of view by means of quantitative anatomic methodology with timber anatomy and measurement system. The results showed that the cross-sectional vessel size of P. ussuriensis timber increased along with the age increment. But there was large deviation of correlation between the vessel size indexes and the tree age, the complex correlation coefficient R2 was from 0. 85 to 0. 31. The longitudinal variation of the vessel size of P. ussuriensis timber was that the vessel length both of the early wood and late wood increased along with the tree height increment before the tree reached 4 m tall, then decreased a-bove 4 m tall of the truck. The vessel diameter of the late wood decreased with the tree height increment.关键词
大青杨/树干/导管/变异Key words
Populus ussuriensis/ trunk/ vessel/ variation分类
农业科技引用本文复制引用
赵西平,郭明辉,王莹,郭平平..大青杨树干内导管的变异规律[J].西南林业大学学报,2012,32(6):88-91,97,5.基金项目
国家自然科学基金项目(31000265,30871969)资助. （31000265,30871969）
