您要查找的是不是：
- Observation and Study of Vessel Elements of Secondary Xylem in. 次生木质部导管分子观察研究。
- Secondary xylem consists of pitted vessels, parenchyma fibers and rays. 次生木质部由孔纹导管、薄壁组织及射线所组成。
- The secondary xylem of trees and shrubs,lying beneath the bark and consisting largely of cellulose and lignin. 木质位于树皮下的树和灌木的次木质部，主要由纤维质和木质构成
- The vessel elements of secondary xylem in Litchi chinensis are observed and studied by bio-microscope image analysis system and micrography. 摘要运用细胞图像分析系统及显微照相的方法，对荔枝次生木质部导管分子进行了观察研究。
- Video Cytological Image Analysis System and micrography were adopted to examine vessel elements in secondary xylem of Phyllanthus emblica. 摘要运用细胞图象分析系统及显微照相的方法，对余甘子次生木质部导管分子进行观察研究。
- More secondary phloem than secondary xylem in carrot Parenchyma predominates in vascular tissues. 在胡萝卜根,薄壁细胞在维管组织中占主导地位,次生韧皮部比次生木质部更发达。
- The secondary xylem of trees and shrubs, lying beneath the bark and consisting largely of cellulose and lignin. 木质位于树皮下的树和灌木的次木质部，主要由纤维质和木质构成
- Development and Histochemistry of Resin Ducts of Secondary Xylem in the Stem of Pinus tabulaeformis Carr. 油松茎次生木质部中树脂道的发育过程和组织化学研究。
- The Effect of Latitudes on the Structure of Secondary Xylem in Liriodendron chinense Sarg. 不同纬度对鹅掌楸次生木质部结构的影响。
- Effect of peroxidase location in cell wall on lignification progress of secondary xylem cell of Populus tomentosa Carr. 细胞壁中过氧化物酶的分布对杨树木质化过程的影响。
- A detailed description is given of the characteristics of the secondary xylem in L. chinense Sarg. ）的次生木质部进行了比较解剖学研究。
- The study on the stem secondary xylem of Symplocos paniculata,reveals the wood belongs to diffuse-porous wood. 研究白檀茎次生木质部结构研究,其为散孔材。
- Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. 木材为树干和树根中坚硬的纤维状物质。
- The secondary xylem of tuberous root is well developed,and there is supernumerary cambium around the vessels. 块根的次生木质部发达，导管周围存在额外形成层。
- The study on the stem secondary xylem of Lonicera maximowiczii, reveals the wood belongs to ring porous wood. 摘要研究紫枝忍冬茎次生木质部结构，其为环孔材。
- The study on the stem secondary xylem of Symplocos paniculata, reveals the wood belongs to diffuse-porous wood. 研究白檀茎次生木质部结构研究，其为散孔材。
- The study of the stem's secondary xylem of Rhus chinensis Mill reveals that perforation plate is simple perforation plate. 对盐肤木茎进行木材解剖学研究,发现其导管分子穿孔板为单穿孔板。
- In nonwoody plants the primary xylem is the only water-conducting tissue, but in mature plants with secondary growth this function is mostly taken over by the secondary xylem. 在尚未木质化的植物中，初生木质部是唯一的输水组织，但在具有次生生长的成熟植物中，该功能大多由次生木质部行使。
- This paper deals with the morphological and quantitative characters of secondary xylem of Ceriops tagal and Avicennia manna. 对红树科 Rhizophoraceae的角果木（Ceriops tagal）和马鞭草科Verbenaceae的白骨壤（Avicennia marina）次生木质部的组织结构和数量特征进行了研究；
