• 次生木质导管

    The secondary structure of root has large vessel diameter.

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  • 次生韧皮部有石细胞,次生木质射线发达

    Sclereids are found in secondary phloem, and rays are rather rich in secondary xylem.

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  • 研究紫枝忍冬次生木质结构,其孔材

    The study on the stem secondary xylem of Lonicera maximowiczii, reveals the wood belongs to ring porous wood.

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  • 杨树木材主要次生木质主要产品器官

    The poplar timber points the secondary xylem mainly, is a main products organ.

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  • 次生木质孔纹导管薄壁组织射线所组成。

    Secondary xylem consists of pitted vessels, parenchyma fibers and rays.

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  • 块根次生木质发达导管周围存在额外形成层。

    The secondary xylem of root is well developed, and there is supernumerary cambium around the vessels.

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  • 横切面上,次生韧皮部面积次生木质得多

    In the transection section, the area of secondary phloem is much larger than secondary xylem.

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  • 在领春木次生木质观察到了穿孔侧壁穿孔板。

    Multiple end wall and lateral-wall perforation plates were also observed in the secondary xylem.

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  • 处在酸性植物次生木质组织二氧化硅替换硅化木

    The secondary xylem of the original plants in local acidic environment was replaced by silica and turned into fossil woods.

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  • 原生木质次生木质形成过程可以看到这种类型的分化

    Basipetal differentiation is seen in the formation of proto-and metaxylem in the stem.

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  • 多重回归分析表明水分温度影响华中五味子次生木质解剖特征主导因子

    The result of stepwise multiple regressions indicated that the water and temperature may be the principle factors significantly affect secondary xylem anatomical characteristics of S. sphenanthera.

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  • 运用细胞图象分析系统显微照相方法对柚木次生木质部导管分子进行观察研究。

    The vessel elements of secondary xylem in Tectona grandis are observed and studied by cell image analysis system and micrography.

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  • 实验结果表明阳生环境生环境水蜡树叶片、幼茎、次生木质结构存在差异

    The results showed that there were differences in the structure of leaves, caulicle andsecondary xylem of L. obtusifolium Sieb. et Zucc. lived in shade and sun environment.

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  • 结果南方红豆杉次生结构由周皮维管系统组成,次生木质部由轴向系统和径向系统两部分构成

    Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder(stele). Axial and radial systems formed the secondary xylem of the roots.

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  • 结果:根横切面上栓内层石细胞环带次生木质导管的排列方式、初生木质部为四原型等为显微鉴别特征

    Results:The circular belt of sclereids in the phelloderm, secondary xylem vessel order of the transverse section, and tetrarch of the primary xylem were microscopic characters.

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  • 温室葡萄PP 333施后,生木质部导管细胞发育抑制作用的大小PP 333浓度呈正比。

    The inhibition of spraying PP333 on the new shoots of greenhouse grape to the development of secondary xylem cell correlated positively with the concentration of PP333.

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  • 木材次生木质部)树木形成层细胞分化产物形成层活动方式不仅影响木材的产量,而且影响木材的结构性质

    Wood is the product of cambial activity in trees, and the seasonal activity style of cambium directly influences wood biomass production, structures and properties.

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  • 维管形成层属于生分生组织,包括能够产生次生木质次生韧皮部的纺锤状形成层原始细胞产生射线的射线原始细胞。

    It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.

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  • 本文我国木兰39木兰属含笑属植物次生木质部的导管分子进行了初步分析。两属导管分子的长度宽度略有差异。

    This paper deals mainly with comparative studies on elements of secondary xylem in 39 species of Chinese Magnolia and Michelia.

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  • 结果表明随着细胞次生形成木质化,细胞壁结构发生较大变化

    The results indicated that along with the formation and lignification of the secondary wall, great changes had taken place in the cell walls.

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  • 木质化过程比较结果表明POD参与了细胞壁木质化过程,次生壁中木质沉积位置并不与POD活性位置一一对应。

    The present results indicated that POD had participated in the lignification. However, the distribution of POD was not same as the regions of lignin deposition completely.

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  • 结果表明不同直径大小走侧根均周皮、次生维管组织四原型的初生木质部构成。

    The results showed that all the cross branch roots of different sizes consisted of periderm, secondary vascular tissue and tetrarch primary xylem.

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  • 次生生长包括组织形成次生细胞壁形成、木质PCD以及心材形成过程

    The secondary growth includes several consecutive processes such as vascular tissue differentiation, secondary cell wall deposition, lignification, PCD and heart wood formation.

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  • 木质次生成份特征

    Lignin is a characteristic component of secondary walls.

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  • 次生结构发生于根毛管形成层由初生木质初生韧皮部之间薄壁细胞转化形成

    Secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem;

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  • 木质植物体中具重要生物功能次生代谢产物

    Lignin is one of the major secondary products in plants with important biological functions.

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  • 韧皮部中主要次生代谢物质含量差异显著木质单宁黄酮含量存在显著差异

    The secondary metabolites in the phloem of 6 poplar strains were also significantly different and tannin and flavone contents in the xylem showed significantly difference.

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  • 韧皮部中主要次生代谢物质含量差异显著木质单宁黄酮含量存在显著差异

    The secondary metabolites in the phloem of 6 poplar strains were also significantly different and tannin and flavone contents in the xylem showed significantly difference.

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