杨树

The distribution of cell ergastic substance was closely related to the developmental inherent rhythm of secondary vascular tissue.

杨树维管组织发育过程的内在节律性与细胞内含物的动态变化密切相关。

Percutaneous revascularization of femoropopliteal artery disease: PTA and PTA plus stent.

作者： 阳建萍，肖运平，肖恩华，罗建光，伍玉枝，朱晖，杨树仁，周顺科［摘要］目的探讨介入治疗在下肢动脉闭塞性疾

But, poplar is damaged by fungal diaeases all the time, such as Melampsora spp., Botryosphaeria ribis, and so on, which lead to huge loss for the country economy every year. For ecology, the unremedi-ed loss is much bigger.

但一直以来，杨树受到真菌病害如杨叶锈病、溃疡病等的威胁，每年给国民经济造成巨大的经济损失，而给生态环境造成的巨大破坏更是无法弥补的。

The results indicated that sclerotia was an important sign and a necessary stage in the formation of the fruit body;light,temperature and humidity were the key factors;"Beiqi"residue can stimulate the forming of the sclerotia and the fruit body;the most suitable culture areas for Morchella were poplar forest land and apple orchard;and woodash and poplar-root soil can promote the forming of the fruit body.

结果表明，菌核是羊肚菌子实体产生的重要标志和重要阶段；光照、温度和湿度是子实体形成的关键因子；北芪渣对菌核和子实体的形成有刺激作用；人工栽培适宜在杨树林地和苹果园进行；草木灰和杨树根土可促进羊肚菌子实体的产生。

The poplars inoculated by overwinter urediniospores could result in diseases.

杨树锈病在我国广泛分布于东北、华北、西北、西南和华东等地区。

The results showed that Pb, Cd and Cu in the leaves of plants were positively related to their concentration in air significantly. The content of heavy metal in plant leaves was obviously associated with the heavy metal properties, pollution conditions and tree species. Platanus hispanica had a higher accumulation in Pb, While Populus deltoides in Cd and Cu.

研究表明，植物叶片中重金属Pb、Cd和Cu的累积量与大气中Pb、Cd和Cu的相对含量呈显著正相关；所调查绿化树种叶片的重金属含量因重金属种类、采样区和树种的不同具有明显差异，悬铃木叶片累积Pb的能力最强，而杨树叶片对Cd和Cu的累积能力最强。

In conclusion, Populus could be used for remedying the environment polluted by Cd.

因此我们初步认为杨树是较好的植物修复候选植物。

The Populus survey will reinforce the ...

该杨树的调查将加强。。。

And the result showed that Populus SSR markers can be used for population genetic analysis and diversity analysis in salix.

同时研究结果也表明，杨树SSR标记完全可以用于柳树群体或品种间的群传多样性分析。

A preliminary application of isozymes in the study of Populus.

标题 同功酶法在杨树研究上的初步应用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。