降低

The plant growth and absorption of Zn and Cd by plants in the co-crop were studied in pot experiment with two ecotypes of Sedum alfredii Hance and a low-accumulating crop on heavy metals contaminated-soil.

本论文取得的主要研究成果如下：（1）土壤淋溶液测定结果表明，玉米和超富集东南景天套种能显著降低污染土壤Zn、Cd的淋溶。土壤水溶性Zn、Cd含量在种植植物后显著降低。

You exault whom you will, and abase whom You will.

你提升你愿意提升的人，你降低你想降低的人。

If the system voltage starts to rise above the desired value, the control circuit will automatically decrease the field excitation and reduce this high voltage by absorbing reactive power.

若系统电压开始升高超过要求值，控制电路就自动降低励磁电流，通过吸收无功来降低电压

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现"低促高抑"的规律，且茎叶浸提液作用效应大于根系浸提液。

The immunoregulation activity of SPG-1 mainly existed in the part of sugar chain, but keeping its molecular structure intact had some effects on its immunoregulation activity; SPG sulphation had reducing effects on the immunoregulation of SPG-1, whereas, after medium and low acetification of SPG, the immunoregulation of SPG was enhanced. Conversely after high acetification, the immunoregulation of SPG-1 decreased, that is, after introducing sulfuric and acetic acid base in SPG-1, its immunoregulation changed. All of these indicated the structure of SPG-1 was closely connected with its immune activity.⑤.

甘薯糖蛋白SPG-1的免疫调节活性主要在其糖链部分，但保持分子结构的完整性对其免疫调节的活性有一定的作用；甘薯糖蛋白硫酸化对甘薯糖蛋白SPG-1的免疫调节有降低作用，而中、低度乙酰化后，可提高甘薯糖蛋白的免疫调节作用，高度乙酰化后则降低其免疫调节作用，即甘薯糖蛋白引入乙酰基和硫酸基团后，其免疫调节活性发生了改变，这些均表明了甘薯糖蛋白的结构与其免疫调节活性有密切的关系。

There is increasing effect of hundred-pod weight employed only in legumen forming stage and with the level of 30kg/hm2, and the level of 30kg/hm2 also have increasing effect for hundred-seed weight in acicula forming and legumen forming stage. Foundation fertilizer with 30kg/hm2 level increasing the quantity of per plant; employing silicon has no significant effect on fat concentration, so silicon is applicable to edible species. Employing silicon make significant descend of plant nitrogen, significant increasing of plant phosphorus only with level of 90kg/hm2 applying before planting, decreasing of that only with level of 150kg/hm2 employing in legumen forming period, and no distinct effect with others levels. Comprehensive effect of plant potassium, and that should do better in future.

仅在结荚期施用30kg/hm2硅提高花生的百仁重；在下针期和结荚期施用30kg/hm2可提高百果重；基施（30kg/hm2）提高产量的主要原因是增加了单株结荚数；花生施用硅肥后对花生仁的脂肪含量没有明显的影响，花生施硅适宜于食用型品种；花生施用硅肥能明显降低花生成熟期植株的全氮含量；对磷的影响则表现为，基施硅肥90kg/hm2可提高植株中磷的含量，而结荚期追施150kg/hm2的处理降低植株中磷的含量；对钾的影响则表现为复杂的规律，其机理需进一步研究。

The activation energy of pyrolysis reaction decreases with the increase of catalyst polypropylene ratio from 0 to 30%.

当剂塑比从0增加到30％时，聚丙烯裂解的活化能呈现降低的趋势，特别当剂塑比为30％时，其活化能降低约50％。

Results Astragaloside significantly lowered the mortality of DCM (35% vs 56%, P.05); PICP and PICP/PINP ratio were decreased in mice treated with astragaloside. Increase of CVF and Collagen I deposition in DCM was degraded in group Astr.

结果黄芪甲甙明显降低小鼠死亡率(35%vs 56%，P.05)；降低血清中胶原前肽PICP含量及PICP/PINP比率；组织病理学检测结果表明黄芪甲甙显著降低心肌组织中CVF及Ⅰ型胶原纤维的堆积。

Studied on the changes of pH and enzyme activities in soils in different years of panax Ginseng C.A.

通过对人参、西洋参不同栽培年限土壤的pH和酶活性变化的研究，结果表明：随着人参栽培年限的延长，土壤pH先升高后降低，2年生时土壤pH达最高5.94，随后降低；西洋参床土pH先升高，到3年时达最高5.53，随后降低。

The PPO activity of genotype 2AL/2DL,2AL/2DH,2AH/2DL,2AH/2DH get higher one by one for one degree40-60AU/min·gand their activity level is low medium,medium,medium high,high medium,respectively;and they make activity decrease 30.1%,decrease 7.8%, increase 8.3%,increase 30.0%,respectively.8.2AL and 2DL gene make kernel PPO activity decrease 25%and 10%, respectively.2AH and 2DH gene make kernel PPO activity increase around 17%.2AL, 2DL,2AH,2DH keep PPO activity at low,medium,medium high,medium high level, respectively.

四种基因型2AL/2DL、2AL/2DH、2AH/2DL、2AH/2DH的籽粒PPO活性逐渐升高一个档次(40-60AU/min·g)，且其活性分别处于低偏中、中等、中偏高、高偏中水平，可分别使活性降低30.1%、降低7.8%、升高8.3%、升高30.0%。8.2AL和2DL基因分别使籽粒PPO活性降低25%和10%。2AH和2DH基因均可使籽粒PPO活性增加17%左右。2AL、2DL、2AH、2DH基因分别使籽粒PPO活性维持在低、中等、中高、中高水平。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。