南方红豆杉木材解剖特征研究

The research on anatomical characteristics of Taxus chinensis var.mairei wood

通过对南方红豆杉木材宏观、显微构造及管胞长度分布频率的研究,并与国产红豆杉属其他种木材进行对比。结果表明,南方红豆杉木材构造特征与红豆杉属其它种的木材十分近似,但在早晚材变化缓急、木射线细胞组成及早材交叉场纹孔类型与紫杉明显不同;南方红豆杉管胞弦向宽度与红豆杉和云南红豆杉相近,但长度较短,紫杉管胞则比南方红豆杉粗短;南方红豆杉管胞长度分布频率早晚材均呈正态分布;天然林的南方红豆杉管胞长度比人工林的明显要短。

Taxus chinensis var. mairei wood is studied by the macro and micro structure and the frequency of tracheids length distribution, and is compared with homebred Taxus of other kinds. The results show that： the Taxus chinensis var. mairei wood has very similar tectonic characteristics with other kinds of wood of taxus, but Taxus chinensis var. mairei is different in changes priorities of early and later wood, ray ceils composition, and early wood cross type from Taxus cuspidate; the Taxus chinensis var. mairei has similar tracheids string Taxus wallichiana var. chinensis and Taxus wallichiana, but with shorter length, and cuspidata tracheids are relatively thick and short compared with Taxus chinensis var. frequency of Taxus chinensis var. mairei tracheids length length of natural Taxus chinensis var. mairei is obviously sh distribution is normal; orter than planted forest. field hole width with the Taxus mairei; the the tracheids