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seed morphology
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  种子形态
     SEED MORPHOLOGY OF GERANIACEAE IN NORTHEASTERN CHINA AND ITS TAXONOMIC SIGNIFICANCE
     中国东北牻牛儿苗科(Geraniaceae)种子形态特征及其分类学意义
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     Seed Morphology of the Genus Schisandra and Its Taxonomic Significance
     五味子属种子形态及其分类学意义
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     This study was conducted in order to investigate the relationship between seed production, seed morphology, and life form of 75 different plant species found in the Horqin sandy land.
     研究了科尔沁沙地75种植物的结种量、种子形态、植物生活型关系。
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     Seed morphology and effects of water extracts of pulp, seed and decoated seed on germination of cabbage and wheat seeds were studied.
     对花楸树种子形态及果肉、种子、去皮种子不同浸泡时间下的浸泡液对小麦和白菜种子发芽率及幼苗生长的抑制作用进行了研究。
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     In this paper,importantly scientific significance and applicable value for study on seed morphology from China are emphasized.
     强调了研究中国植物种子形态的重要科学意义和应用价值。
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  种子形态学
     THE SEED MORPHOLOGY IN HAMAMELIDACEAE AND ITS SYSTEMATIC EVALUATION
     金缕梅科的种子形态学及其系统学评价
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     Methods and terminology of study on seed morphology from China
     中国植物种子形态学研究方法和术语
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     Studies on the seed morphology of Rorippa in Shandong and its systematic taxonomy significance
     山东蔊菜属种子形态学研究及其系统分类学意义
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     The aim of this work is to have a better understanding of the structure,differentiation and phylogenetic relationship of the tribe Hyoscyameae in the Solanaceae using evidence from leaf epidermis,seed morphology,palynology,embryology,floral organogenesis,trnL-F and ITS sequences,and plant geography.
     本文研究了茄科天仙子族7属以及有亲缘关系的颠茄属、茄参属和枸杞属的形态学、解剖学、孢粉学、种子形态学、胚胎学、花器官发生、分子系统学和分支系统学; 论述了它们的结构、分化和系统关系。
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     Evidences from the cladistic analysis of Saxifragaceae Sensu Lato and Hydrangeacea based on rbcL sequence data, and studies on seed morphology of Hydrangeaceae, as well as the studies on leaf venation and pollen morphology of Hydrangeoideae (Hydrangeaceae) indicate that the genus Hydrangea is closely linked to other genera and it may be at the central position in Hydrangeoideae.
     据广义虎耳草科的rbcL序列资料的分支分析、绣球花科的rbcL序列资料的分支分析、绣球花科种子形态学特征、绣球亚科的脉序研究以及绣球花亚科花粉形态特征 ,推测绣球属可能在绣球花亚科演化上处于一个中心位置 ,与其它各属有着十分亲缘的关系 .
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  “seed morphology”译为未确定词的双语例句
     Comparison of Seed Morphology in Schisandra
     五味子药材的扫描电镜形态比较
短句来源
     Canonical correlation analysis of growing period, plant morphology, pod and seed morphology, yield and quality characters was conducted in 9 spring vegetable soybean varieties.
     对 9个春播菜用大豆品种的生育期、植株形态、荚粒形态、产量性状、品质性状 5组变量进行典范相关分析.
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     Based on analysis on seed morphology and seed dyeing with phenol and wound phenol, classification and identification of Parakmeria lotungensis, P. yunnanensis and P. nitida seeds showed that there are a little difference of morphology of three seeds, but unstable.
     采用种子外观形态观察、苯酚染色法和愈伤木酚染色法对木兰科拟单性木兰属的乐东拟单性木兰、云南拟单性木兰、光叶拟单性木兰的种子作了区别鉴定,结果表明:3个种的种子外观形态有一定差别,但差异表现不稳定。
短句来源
     Study on Seed Morphology of Lindera aggregata from 14 areas
     乌药种子性状产地表型变异研究
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     Seed morphology and germination, seedling morphology and biomass of 24 treespecies in the lower subtropical forest of China were studied comparatively in light anddark conditions on expanded perlite as germination and growth medium.
     以膨胀珍珠岩为基质,在光和暗的条件下,对24种南亚热带森林乔木的种子萌发和幼苗生长进行了研究。
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  seed morphology
Comparative seed morphology and character evolution in the genus Lysimachia (Myrsinaceae) and related taxa
      
In the present paper we study seed morphology and leaf epidermal features of 22 species of Schisandraceae in order to provide additional data for a morphological data matrix.
      
We selected 50 species for ITS nrDNA sequencing, to include all biogeographic areas and all infrageneric groupings, which are currently based on seed morphology.
      
Seed morphology and its systematic significance in some Veronica species (Scrophulariaceae) mainly from the Western Mediterranea
      
Genetic differentiation among populations is extremely high (GST= 0.71), indicating that the gene flow among populations is highly impeded, and pollen and seed dispersal is limited due to the pollinators and the seed morphology.
      
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The injurious character of darnel, at least from its weedy side, has been known since early times. The grains of darnel, when ground up with wheat and made into flour, show their poisonous effects in producing headaches, drowsiness, giddiness, uncertain gait, and stupefaction and in animals, convulsions, loss of sensation and even death. Darnel has become a serious pest in wheat field in some localities after it was introduced. It is of nearly the same shape, size and weight as normal grains of wheat and it...

The injurious character of darnel, at least from its weedy side, has been known since early times. The grains of darnel, when ground up with wheat and made into flour, show their poisonous effects in producing headaches, drowsiness, giddiness, uncertain gait, and stupefaction and in animals, convulsions, loss of sensation and even death. Darnel has become a serious pest in wheat field in some localities after it was introduced. It is of nearly the same shape, size and weight as normal grains of wheat and it is exceedingly difficult to separate it by machinery. Darnel and its varieties are not indigeneous to China. They have been disseminated in seed. It is difficult for the average person to identify them with any degree of accuracy. Available literature on the subjects of "seeds" classification and morphology of darnel and its varieties is surprisingly limited. It is quite important to make the seed examination of darnel and its varieties and other weed seeds that are declared noxious for this country. General characteristics of seeds (grains or caryopsis) of the species and its varieties, together with the external characteristics and associated structures are given in this paper. Seed morphology is closely allied with seed taxonomy furnishing the groundwork of information by which seed are distinguished and classified. The principal taxonomic criteria used for classification of darnel and its varieties have much to do with the number and arrangement of florets in the spikelets and the arrangement of spikelets in the inflorescences. Since the darnel "seed" consists of the matured floret, with associated glumes, characters exhibited by these structures are applied as basis of seed classification. On the basis of these and other existent variations in structure and colour of darnel seeds, a relative dependable separation of the samples is made.

关于毒麦的为害,很早就有記述。人与牲畜吃了毒麦都会中毒。毒麦传入我国繁生麦田,在一些地区已造成損害。毒麦的籽实同麦粒的大小和重量相近,很不容易进行机械清除。毒麦及其变种依靠籽实传布,常混杂麦粒难以鑑別。因此,毒麦及其变种籽实的鑑定与分类,对于检疫工作,显得很重要。本文就1950—1964年間,对我国已发生的毒麦,进行鑑定与分类。根据毒麦的穗、小穗,带稃籽实(颖果)及脫粒籽实的基本特征,主要是与种子分类有关的形态学上的特征,进行分析比较与描述。按鑑定的毒麦及其变种,編制籽实分类检索表,并附实物照片与插图。

Seed proteins of two cultivars of common bean ( Phaseolus vulgaris) which share same seed morphology but different habit of shoot ( one is erect, another is voluble ) were analysed by using non-denaturating gradient polyacrylamide gel electrophoresis, SDS gradient polyacrylamide gel electrophoresis, polyacrylamide and agarose gel electric focusing. A considerable difference of both electric charge and molecular weight of seed proteins between two cultivars has leea found, especially, in protomers...

Seed proteins of two cultivars of common bean ( Phaseolus vulgaris) which share same seed morphology but different habit of shoot ( one is erect, another is voluble ) were analysed by using non-denaturating gradient polyacrylamide gel electrophoresis, SDS gradient polyacrylamide gel electrophoresis, polyacrylamide and agarose gel electric focusing. A considerable difference of both electric charge and molecular weight of seed proteins between two cultivars has leea found, especially, in protomers shown by SDS electrophoresis. Based on the fact that only 13 subunits are shared by two cultivars among total 33 bands, we suggested that SDS gradient polyacrylamide gel electrophoresis may be the most valuable in cultivar identification of common bean.Some new subunits which have their molecular weight higher than 100K and a variation occured in low molecular weight bands in bean proteins have been reported.

应用非变性的梯度聚丙烯酰胺凝胶电泳、SDS线性梯度聚丙烯酰胺凝胶电泳、聚丙烯酰胺和琼脂糖凝胶电聚焦分析了种子形态近似但茎生长习性不同(一个直立、一个缠绕)的两个菜豆品种的种子蛋白,结果表明它们的种子蛋白在电荷和分子量组成上都有显著差别.尤其以SDS电泳谱差别最大,种子系由北京市种子公司提供.总共33种亚基,两个品种共有的仅13个左右.因此我们提议进行菜豆品种鉴定,最好用SDS线性梯度聚丙烯酰胺凝胶电泳.本文首次报道菜豆种子蛋白有高分子量亚基存在.在较低分子量范围(10—25千道尔顿)存在变异,并可用在品种鉴定上.

The seed morphology and anatomy of obligate parasite-Cistanche deserticola Ma were studied by artifitial cultivation. The structure of the mature seeds is similar to that of the general root parasitic plants. The seed is tiny and contains a subglobose embryo that lacks differentiation into radicle, hypocotyl, cotyledons and plumule. Upon germination the morphological radicular pole of the embryo forms a "germ-tube-like organ". Its growing tip comes into contact with the root of the host and...

The seed morphology and anatomy of obligate parasite-Cistanche deserticola Ma were studied by artifitial cultivation. The structure of the mature seeds is similar to that of the general root parasitic plants. The seed is tiny and contains a subglobose embryo that lacks differentiation into radicle, hypocotyl, cotyledons and plumule. Upon germination the morphological radicular pole of the embryo forms a "germ-tube-like organ". Its growing tip comes into contact with the root of the host and then penetrates into it and organizes the primary haustorium. The part that remains outside the host forms the "tubercle", This morphogenesis was obtained in several parasitic plants by experimental morphogenesis. The germination is dependent on a stimulus from the root of the host and shoot initiation did not occut unless contacted the root hair region of host. The process of germination of seeds of Cistanche deserticola can be used as a experimental model system for study of morphogenesis, metabolism of development. Nowadays we are working on these studies.

在人工栽培条件下研究了专性寄生植物——肉苁蓉种子的形态解剖结构及其在寄主根上的萌发过程。肉苁蓉种子具有典型的列当科寄生植物种子的特征,种皮内仅有球形胚,外包以胚乳。根据观察发现,只有当寄主梭梭的根穿入肉苁蓉种子的种皮内且刺激其球形胚产生“芽管状器官”,并连接于寄主根上后种子才能萌发,与肉苁蓉种子连接的部位主要在根毛区。首先在与寄主根连接的“芽管状器官”的頂部膨大为瘤状物,以后在内部分化形成输导分子并与寄主的维管束相连通,进而在瘤状物远离寄主根的一端分化形成頂芽,由此长成肉苁蓉植株。

 
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