查询词典 Potamogeton

Removal of hydrophytes system composed by potamogeton crispus for contamination is studied.

利用冬春季沉水植物菹草构建的阶梯式水生植物系统研究了其对水体悬浮泥沙及氮、磷污染物的净化效果。

The lethal concentration scope of Hg(superscript 2+) to Potamogeton crispus was 1~3 mg/L based on the experiment results.

Hg(上标 2+)对菹草的致死浓度菹围应在1~3mg/L。

Based on the above results, the dynamic growth model with parameters of water depth and transparency was finally developed to predict the dynamic process of Potamogeton crispus growth under the external factors.

综合考虑水体透明度对菹草生长的影响，建立考虑水深和透明度因素的菹草生长动力学模型，该模型可预测出在外部水环境因素作用下菹草的动态生长过程。

Effects of Acetic Acid on Germination and Bud Growth of Elodea nuttallii and Potamogeton crispus

篇名 富营养底质对沉水植物的胁迫研究Ⅰ。乙酸对伊乐藻和菹草萌发与幼芽生长的影响

The results indicae that the dominant species is Potamogeton malaianus Miq in the six aquatic plants with maximum fresh unit biomass of 6131 g/m^2, accounting for 61.59% of the total sample; The sub-dominant species is Egeria densa Pianch with maximum fresh unit biomass 3716 g/m^2, accounting for 24.78% of the total sample.

测定结果表明：在采集到的6种水草中竹叶眼子菜为优势种群，单位生物量最高为6131 g/平方公尺，占全部样本总量的61.59%；水蕴草为次优势种群，单位生物量最高为3716 g/平方公尺，占全部样本总量的24.78%。

Propagules and buds of Elodea nuttallii and Potamogeton crispus were exposed to acetic acid concentrations from 1 to 16 mmol/L for 3 or 6 days, and then they were subsequently cultured in absence of acetic acid. Results showed P. crispus was more tolerant to acetic acid than E. nuttallii. At acetic acid concentration of 1 mmol/L, E.

研究了暴露于不同浓度的乙酸溶液后伊乐藻和菹草无性繁殖体的萌发和幼芽的生长状况。1mmol/L的乙酸能显著抑制伊乐藻幼芽的生长(P.05)，但对其繁殖体的萌发无明显影响。

We also evaluate the effects of treatment by acetosalicylic acid to physiological indexes of Potamogeton crispus Linn.

本文以高等水生沉水植物菹草Potamogeton crispus Linn。

The results of the 60 days experiment showed that both submersed macrophytes(Hydrilla verticillata,Potamogeton malaianus and Vallisneria natans) and floating-leaved macrophytes(Nymphoides indica and Trapa quadrispinosa)had very high removal rates for TN,TP,NO_3~——N and PO_4~——P,and the values exceeded 60%,but Potamogeton malaianus and Vallisneria natans were most effective at removing nutr...

结果表明，沉水植物马来眼子菜、苦草、轮叶黑藻和浮叶植物荇菜、菱等5种水生植物对水体的总氮、总磷、硝态氮和正磷酸盐都有较好的去除效果，去除率在60%以上，且以马来眼子菜和苦草的效果最好，去除率在80%以上。

Scallops are two embroidery, a minimum of three Potamogeton large has four or five of Potamogeton.

带子两头都绣花，一头最小的为三个眼子，大的有四个、五个眼子的。

This paper studies the quality of nutrition of three nutrition; That poor nutrition, nutrition, Eutrophication in constant temperature of 25 ° C under the conditions right to Potamogeton perfoliatus L germination of seeds and germination rate used, germination index and other indicators to Potamogeton perfoliatus L seed germination results were evaluated.

本文主要研究了三种营养化；即贫营养化、中营养化、富营养化在恒温25℃的条件下对穿叶眼子菜（Potamogeton perfoliatus L。）种子萌发的影响。

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。