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primary vascular bundle 初生维管束
The primary vascular structure of a root. 根的初生维管结构。
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 characteristics of vascular bundle in the first internode and grain-filling of heavy panicle hybrid rice (HPHR) were studied. 摘要对重穗型杂交稻穗颈节间维管束特徵及其籽粒充实进行了研究。
The nectaries were composed of epidermis, nectariferous tissue and vascular bundle which only consisted of phome. 蜜腺由分泌表皮、产蜜组织和仅含韧皮部的维管束组成。
Vascular bundle have not cambium layer, vessel, and spiral tracheid as well.Only sieve element. 维管束无形成层，无导管，也不具有螺纹管胞，只有筛分子。
Ginkgo biloba leaf petiole, is actually composed of many vein from the collection of vascular bundle group. 银杏叶的叶柄，实际上是由许多叶脉集合而成的维管束群。
It shows one sheath around the vascular bundles. 它显示出在维管束周围的鞘状构造。
Vascular bundle equal distributed in circumfuse of two cotyledons, formed a circule. 摘要莲子叶组织中的维管束均等的分布于两瓣子叶里，形成1周。
The vascular bundle consists of vascular bundle sheath,xylem,phloem and big parenchymatous cells. 维管束由维管束鞘、木质部、韧皮部和大型薄壁细胞组成。
Male-sterility mainly results from the abnormality of mesospore,tapetum tissue and vascular bundle. 中层组织、绒毡层组织及药隔维管束异常均是雄性败育的因素。
The large vascular bundle number of panicle neck internode was higher in Indica cultivars than in Japonica cultivars. 结果显示，参试品种穗颈节间大维管束数目，籼稻品种比稉稻品种多。
The spongy cell arranged densely.The vascular bundle sheat and the phloem were colored more red. 维管束的导管口径变小，维管束鞘和韧皮部的细胞番红染色加重。
ANATOMICAL STUDIES ON THE PRIMARY VASCULAR SYSTEM OF THE SEEDLING OF ADONIS AESTIVALIS L. 夏侧金盏花幼苗初生维管系统的解剖学研究
The vascular bundle area in 2nd internode below the ear of cold type wheat is obvious smaller than warm type wheat's. 冷型小麦倒二节间中维管束面积明显小于暖型小麦；
The sieve element of the primary vascular system of the seedling of Nelumbo nucifera was sieve tube element. 莲幼苗初生维管系统中的筛分子为筛管分子。
Collateral or bicollateral vascular bundle, developmental pith and medullary ray are obvious. 髓部发达，髓射线明显。
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。
Primary vascular tissue, which is found in all vascular plants, is formed from the procambium. 初生维管组织由原形成层发育而来，在所有维管植物中都有存在。
The vascular bundle has a similar spikelet number load and sink load in the HPHR and Shanyou 63. 重穗型组合的维管束颖花负荷量、总库容负荷量均与汕优63相当。