concentric vascular bundle是什么意思

网络释义

用法例句

Characteristics of the vascular bundles in the panicle and their relations to the grain-filling for the different panicle types of rice;

水稻不同穗型品种穗部枝梗维管束与籽粒充实特性的研究

The relations between panicle characters of intersubspecific heavy panicle hybrid rice and vascular bundles in neck panicle;

亚种间重穗型杂交稻穗颈维管束与穗部性状的关系

Correlation between the structure of vascular bundle and the content of aloin in Aloe;

芦荟维管束的结构与芦荟素积累的相关性

small bundles of spiral vessels

螺纹导管的小维管束

a small bundle of stipules

托叶的一个小维管束

It stretches from the leaf base to the vascular ring in the stem axis.

它由叶子基部的维管束延伸至茎轴的维管束。

It shows two well-developed sheaths around the vascular bundles.

它显示出两个发育完全之维管束鞘位于维管束周围。

It shows one sheath around the vascular bundles.

它显示出在维管束周围的鞘状构造。

Bundle sheath The ring of parenchymatous or sclerenchymatous tissue, usually one cell thick, that surrounds the vascular bundle in an angiosperm leaf.

维管束鞘：在被子植物叶中，围绕维管束的通常是一层薄壁或厚壁细胞。

The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.

维管形成层向两侧延伸直至形成一个茎内的分生组织环，各个维管束被束间形成层联系在一起。

Intrafascicular cambium (fascicular cambium) The part of the VASCULAR CAMBIUM within the vascular between the xylem and phloem.

束中形成层：是位于木质部和韧皮部构成的维管束内的一部分维管形成层。

Each lobe contains two pollen sacs that produce very large quantities of small pollen grains.

左右两侧花粉囊之间是薄壁细胞构成的药隔，药隔中的维管束与花丝维管束相连。

However, the number of vascular bundles and the development of sclerenchyma are not uniform with each other.

然而,维管束的数目及厚壁组织的发育各不相同。

Venation The distribution of veins (vascular strands) in a leaf.

脉序：是叶片中各叶脉(维管束)的排列分布状态。

It has been applied to attached algae and submerged vascular plants.

这已经用于附生藻类和沉水维管束植物中。

In BMR there are 1 056 species of vascular plants, belonging to 556 genera and 154 families.

据统计，该区有维管束植物154科，556属，1056种。

It does not show sheaths around the vascular bundles.

它并没有显示出在维管束周围的鞘状构造。

Chromosomal Localization of rDNA in Species of Subgenus Strobus (Pinus);

松属单维管束亚属植物rDNA的染色体定位研究

Preliminary Analysis of the Resources and Floras of Aquatic Plants in Lishui City,Zhejiang Province;

丽水市水生维管束植物资源及区系的初步分析

An analysis of the Vascular plants in Dayangshan of Jinyun, Zhejiang Province;

浙江缙云大洋山维管束植物的初步分析

The Influence of Plant Density on the Ear Vascular Bundle of Different Types of Maize;

密度对不同玉米品种果穗维管束结构的影响