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当前位置: 首页 > 文章 > 人工兴安落叶松次生木质部的解剖学研究 吉林林业科技 2014 (1) 40-44
Position: Home > Articles > Anatomical studies about the secondary xylem of artificial Larix gmeini Journal of Jilin Forestry Science and Technology 2014 (1) 40-44

人工兴安落叶松次生木质部的解剖学研究

作  者：
赵西平;秦丽丽;杨利梅;王大帅;郑权;张磊
单  位：
河南科技大学林学院
关键词：
兴安落叶松;次生木质部;管胞;木射线;具缘纹孔;树脂道
摘  要：
运用木材解剖图像分析系统和显微照相的方法对人工兴安落叶松次生木质部的解剖结构进行研究,结果表明:落叶松具正常树脂道和受伤树脂道两种类型,前者常见于晚材。落叶松生长轮内的早晚材在干和枝内急变,在根内缓变。早材管胞呈六边形至多边形,胞壁常见单列具缘纹孔,偶见对列具缘纹孔;晚材管胞多呈矩形,胞壁鲜见具缘纹孔,通常为单列具缘纹孔。落叶松木射线同时具有单列木射线和纺锤形木射线两种类型,纺锤形木射线中仅含一枚纵行树脂道。纵行管胞与木射线交叉形成的纹孔场为云杉型。从根到干再到枝,管胞逐渐细化,管胞长度逐渐减小,木射线分布由密到疏。
译  名：
Anatomical studies about the secondary xylem of artificial Larix gmeini
作  者：
ZHAO Xi-ping;Qin Li-li;Yang Li-mei;Wang Da-shuai;Zheng Quan;Zhang Lei;Forestry College,Henan University of Science and Technology;
关键词：
Larix gmeini;;secondary xylem;;tracheid;;wood ray;;bordered pit;;resin canal
摘  要：
With wood anatomy image analysis system and micrography,anatomical structure of secondary xylem was observed and measured in artificial Larix gmeini. The results showed that Larix gmeini contained normal and injured resin canal. The normal resin canal was commonly in latewood. From the earlywood to the latewood,the change was sharp in stem or branch,but was mild in the root. The shape of earlywood tracheid was hexagon or polygon. The single bordered pit was common in cell wall of earlywood tracheid,while the double bordered pit was unusual in them. The shape of Latewood tracheid was rectangular. The bordered pits were found seldom in the cell walls of latewood tracheid. It must be single bordered pit if the pits are found. There were single wood ray and spindle wood ray in Larix gmeini. Spindle wood rays only contained one longitudinal resin canal. The pit field formed by longitudinal tracheids and xylem rays is spruce type. From the root to the stem and branch,the size of tracheid was progressive elaboration,the length of xylem decreased,and distribution of rays were by the close to the sparse.

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