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高地钩叶藤节间与节部导管及维管束形态特征径向变异规律
汪佑宏,张菲菲,薛夏,季必超,李担,张利萍
0
(安徽农业大学林学与园林学院,合肥 230036)
摘要:
为了更好地了解棕榈藤材的性能、提高我国棕榈藤资源培育和高附加值加工利用水平,选用高地钩叶藤为研究对象,采用显微图像分析系统,对该藤2 m处的节间和节部的导管分子及维管束形态特征进行统计与分析。结果显示,节间与节部大导管分子长度、直径、密度的平均值分别为3 981.363和2 666.883 μm、198.235和202.402 μm、3.611和3.784个·mm-2;维管束径向直径、弦向直径、密度的平均值分别为523.466和534.794 μm、373.624和379.823 μm、3.078和3.202个·mm-2。经F检验,仅节间与节部的导管分子长度差异极显著(P<0.05)。
关键词:  高地钩叶藤  节间  节部  导管  维管束  变异规律
DOI:10.13610/j.cnki.1672-352x.20191122.009
投稿时间:2019-02-21
基金项目:国家自然科学基金(31570553)和“十二五”国家科技支撑计划研究任务项目(2015BAD04B0302)共同资助。
The variation rule of vessel and vascular bundle morphological characteristics of Plectocomia himalayana between internode and node
WANG Youhong,ZHANG Feifei,XUE Xia,JI Bichao,LI Dan,ZHANG Liping
(School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036)
Abstract:
In order to fully understand the performance of rattan, and to improve the levels of cultivating and high value-added processing and utilization of Chinese rattan resources, the vessel and vascular bundle morphological characteristics of internode and node at the height of 2 m of Plectocomia himalayana were counted and analyzed using microscopic image analysis system. The results showed that: the average length, diameter and frequency of the vessel at the internode and node were 3 981.363 and 2 666.883 μm, 198.235 and 202.402 μm, 3.611 and 3.784 mm-2, and the radial diameter, tangential diameter and frequency of vascular bundle were 523.466 and 534.794 μm, 373.624 and 379.823 μm, 3.078 and 3.202 mm-2, respectively. The vessel length was significant different between internode and node by the F-test at the 0.05 level.
Key words:  Plectocomia himalayana  internode  node  vessel  vascular bundle  variation rule

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