查询词典 seed plants

The floristic components have character as following: geographic -al elements of species is relatively simple;there are more species of world distributi -on and tropical genera,and there have world blazon predestined relationship and tropical predestined relationship.Composite,standing grain,legumina have absolutely predominance make of the backbone of floristic.Seed plants are mainly made up of herbage plants.

种子植物区系成分具有以下特点：种的地理成分相对简单；表现出明显的亚热带特征，并具有热带向温带过渡的特点；菊科、禾本科、豆科占有绝对优势，构成植物区系的骨干；种子植物主要由草本植物组成，草本植物占绝对优势。

The population size depended on the three sources, i. e., plants growing across seedlings from seed, plants growing across seedlings from tillering buds and survival individuals in terms of life cycle of Cycas fairylakea.

根据仙湖苏铁生活周期，仙湖苏铁种群数量大小变化取决于三个方面：种子萌发长成的新个体、萌蘖芽长成的新个体、存活的个体。

Other courses like dendrology for gardening, taxonomy of seed plants, plant classification or plant systematics may be similar or overlap in some degrees. However, dendrology focuses on woody plants, especially on trees from gymnosperms and dicotylerdons of angiosperms. Dendrology for gardening is more suitable for students from specialties relating to gardening.

类似并可以在一定程度上起替代的课程为园林树木学、种子植物分类学、植物分类学或植物系统学，但树木学主要侧重于木本植物的分类，而且主要集中在裸子植物和被子植物的双子叶植物纲上中；园林树木学则主要适用于园林相关专业的学生。

A minute structure in seed plants,containing the embryo sac and surrounded by the nucellus,that develops into a seed after fertilization .

胚珠种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子受精的产物是杂合子。

We highlight our results as follows:(1) the proportion of wild seed plants found on the Red List to total seed plant species was lower in China than in Japan, but the degree of threat for gymnosperms was higher in China than in Japan;(2) several hydrophyte families were not listed on the Red List of China, but have been severely threatened in Japan;(3) the number of cosmopolitan genera endangered in China was fewer than in Japan; and (4) among species threatened in both China and Japan, there was a large proportion of common species, sister species, and closely related species.

研究发现：(1)中国红色名录中濒危植物的种类占其所有野生种子植物的比例显著低于日本，但裸子植物的濒危程度却极其显著地高于日本；(2)部分水生植物科未列入中国红色名录，但在日本已受到严重威胁；(3)中国红色名录中出现的世界分布属显著少于日本；(4)两国濒危植物中有大量共有种、姊妹种或近缘种。

A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization.

胚珠种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子

Seed plants; comprises the Angiospermae and Gymnospermae; in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots).

种子植物；包含被子植物部和裸子植物部；在一些分类中，种子植物等同于蕨类植物（其孢子能生成有维管组织和根的植物）和苔藓植物（其孢子生成的植物没有维管组织和根）。

Seed dispersal by frugivorous birds and their effects on regeneration and distribution of seed plants in Nanjing ...

应用植物学和鸟类学综合交叉研究的方法，研究了南京中山植物园及其周围地区鸟类传播种子对于种子植物自然更新与分布的影响。

As a concentration of seed plants diversity, NBG can produce a large quantity of various kinds of seeds, and the seeds may arrive at diversified habitats with the assistance of dispersal by frugivorous birds, Avian seed dispersal have spread the distribution of seed plants cultivated in NBG and have promoted their natural regeneration, furthermore, it has exerted a positive influence on development and succession of plant communities around the botanical garden.

南京中山植物园作为本地区种子植物多样性中心，提供了丰富多样的种子来源，鸟类传播种子有利于种子到达多样化的生境类型中，促进了植物园内植物的自然更新，扩大了植物的分布范围，丰富了植物园周围马尾松群落，以及虎山森林植物群落中的植物种类，对植物群落的发展和演替产生了积极的影响。

Therefore, this experiment that 75 mg / L concentration of the most appropriate for future experiments in the screening of the large concentration of rye grass seed, can be eliminated with this concentration of poor resistance to many of the seeds and improve the quality of ryegrass seed plants can enhance fertility.

所以，本实验的认为75mg/L的浓度最适宜作为今后实验中筛选黑麦草种子大的浓度，用此浓度即可淘汰许多抗性差的种子，提高黑麦草种子的质量增强植株可育性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。