查询词典 native plants

Vascular plants, related to modern seed plants and ferns, left the first comprehensive megafossil record.

与现代种子植物和蕨类植物有种属相关的微管植物，留下了一批巨化石记录。

Silicon A MICRONUTRIENT found in many animals and plants, although not essential for growth in most plants.

硅：许多动植物体内含有的一种微量营养素，但在大多数植物中并不是对生长必须的物质。

Using three different types of living aquatic plants Rhizome of Oldworld Arrowhead, water lettuce, and Brazilian milfoil as test materials,we study a single planting of that three aquatic plants' impact on eutrophicated water DO, BOD, COD.

中文摘要：选择三种不同生活型水生植物慈姑（Sagittaria sagittifolia 、大薸、穗状狐尾藻为试验材料，研究了单一种植这三种水生植物对富营养化水体中的DO、BOD5、COD的影响。

Several U.S. flooring plants have stepped up production and lumber purchases, as have various end-users in China and Vietnam, but most domestic millwork, cabinet, furniture and wood component plants have not joined them.

一些美国地板工厂已经增加生产和采购木板，因为有中国和越南的各类终端用户，但是多数的国内木制品，橱柜，家具和木制组件工厂不会加人他们的行列。

Here, we inserted the RRD3 fragment into the plant promoter-capture vector, pCAMBIA1391Z, and examined whether the RRD3 fragment has promoter activity in plants. Transgenic tobacco and rice calli both showed β-glucuronidase activity, indicating that RRD3 can act as a promoter in both monocot and dicot plants.

我们将RRD3片段插入到植物启动子捕获载体pCAMBIA1391Z中，检测RRD3片段是否在植物中也有启动子活性，转基因烟草再生植株和水稻愈伤组织均显示了gusA基因的表达，表明其在单子叶和双子叶植物中均可行使启动子功能。

The cloned cDNA fragment in sugarcane had the same conserved amino acid sequences for GA20-oxidase as those in other monocotyledon plants, and shared respective homologies of more than 80% and more than 75% in the nucleotide and amino acid sequences with many other monocotyledon plants.

通过RT-PCR扩增得出1条约740 bp大小的DNA片段，将其克隆至pMD18-T载体上，而后对重组克隆进行测序，结果表明所获得的甘蔗GA20氧化酶基因片段由740碱基组成，编码246个氨基酸。

These individual characters are similar to those of most aquatic plants in monocotyledonous Helodiales and dicotyledonous Nymphaeales, which reflects the phylogenetic relationships of Iris from aquatic plants to xerophil.

这些个体性状与单子叶沼生目和双子叶睡莲目多数水生植物相似，从一定程度上可以反映鸢尾属植物从水生到旱生的系统发生上的关系。

The effects of applying potassium fertilizer at peak boiling stage (28, July) on cotton photosynthetic characteristics and its yield and quality under normal density (3.75×10^4 plants/ha) removing monopodium and low density (2.25×10^4 plants/ha) retaining monopodium were studied under filed condition with random block design. The K application rate was 75 kg/ha.

在大田条件下，采用随机区组设计，研究了中期（7月28日）补施75 kg/hm^2钾肥对去叶枝常规密度群体和留叶枝稀植大棵群体后期棉花叶片光合特性和产量品质的影响。

The effects of applying potassium fertilizer at peak bolling stage(28,July) on cotton photosynthetic characteristics and its yield and quality under normal density(3.75×104 plants/ha) removing monopodium and low density(2.25×104 plants/ha) retaining monopodium were studied under filed condition with random block design.

在大田条件下，采用随机区组设计，研究了中期(7月28日)补施75.kg/hm2钾肥对去叶枝常规密度群体和留叶枝稀植大棵群体后期棉花叶片光合特性和产量品质的影响。

The tetraploid plants and the diploid plants were also compared morphologically and cytologically.

对诱变的四倍体和二倍体进行了形态学、细胞学的比较。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。