早材 meaning in English
early wood; springwood
Examples
- Taxodioxylon cunninghamioides watari : growth rings distinct , transition from early wood to late wood more or less abrupt
杉木型木( taxodioxyloncunninghamioideswatari ) ：生长轮明显，早材至晚材渐变。 - Tsuga dumosa richer : the regular presence of ray tracheids . axial parenchyma cells rare and distribute in the boundaries of growth rings
云南铁杉( tsugadumosaeicher ) ：生长轮明显，早材至晚材略急变至渐变。 - Tori extensions present on pit membrane . taxodioxylon cryptomeripsoides schonfeld : growth rings distinct , transition from early wood to late wood more or less abrupt
柳杉型木( taxodioxyloncryptomeripsoidesschonfeld ) ：生长轮明显，早材至晚材略急变。 - Identified taxa and their characters as follows : pinus armandii franchet : normal vertical and horizontal resin canals with thin - walled epithelial cells present . cross - fields pitting window - like
木材种类的特征如下：华山松( pinusarmandiifranchet ) ：生长轮明显，早材至晚材渐变。 - Thickness of upper and lower epidermis of leaves , width of xylem and phloem of annual and biennial branches , ratio of late wood to early wood , periderm thickness of biennial branches , and length of xylem ray present decreasing trends with latitude ascending ; while ratio of palisade tissue to spongy tissue , epidermis thickness of annual branches , and cortex thickness of biennial branches show unobvious variations with latitude increasing
叶的上下表皮厚度、 1和2年生枝木质部及韧皮部宽度、晚材早材比值、 2年生枝的周皮厚度、木射线长等均随纬度升高而呈下降趋势；而叶的栅栏组织和海绵组织比值、 1年生枝表皮厚度、 2年生皮层厚度等解剖结构随纬度变化没有明显规律。