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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。

Had high absorptive capacity in high concentrations of TN, while Eichhornia crassipes system had high absorptive capacity in high concentrations of TP.

比较而言，水芹系统对高浓度氮的吸收能力强，水葫芦系统对高浓度磷的吸收能力强。

The results showed that the total mercury concentrations of Elops machnata was up to 3.26±0.70ppm. The concentrations of total mercury for Mugil cephalus was only 0.30±0.06ppm. However, biomagnification is not obvious.

在鱼体样品分析结果中总汞浓度以海鲢最高达3.26±0.70ppm，鲻最低为0.30±0.06ppm，甲基汞浓度以海鲢最高达3.08±0.72ppm，鲻最低为0.25±0.05ppm，显示该区鱼体遭受污染，其生物对於底泥之累积因子为0.1297。

Methods The concentrations of serum PCⅢand angiotensinⅡ were measured by radioimmunoassay in 43 patients with AMI, the serum concentrations of creatine kinase isoenzymes MB also were measured by enzym immounoassay at the same time.

采用放免法检测 4 3例AMI患者血清PCⅢ、血管紧张素Ⅱ(angiotensinⅡ，AngⅡ)水平，酶免疫测定法检测肌酸磷酸激酶同工酶MB水平。

Don.methodswith the stem of sterile seedling and fresh plants as exophyte, ms as a basic medium, 6-ba and naa hormone were adopted as the experimental variables.resultsms +1.0 mg / l 6-ba +1.0 mg / l naa induced the best effect of callus; higher concentrations of 6-ba with high concentrations of naa made callus densification and higher rate.conclusion different plant hormones and their different concentration ratios have different effects on the callus of halenia elliptica d.

方法以椭圆叶花锚种子培养的无菌苗的茎和新鲜植株的茎段为外殖体，ms为基本培养基，分别以6-ba和naa两种植物激素为变量进行实验研究。结果ms培养基+1.0 mg/l 6-ba+1.0 mg/l naa对诱导椭圆叶花锚愈伤组织的形成效果最佳；高浓度的6-ba配合较高浓度的naa诱导的愈伤组织致密，出愈率高。

Using meteorological data and horal pollutant concentrations data from 1 August 2001 to 31 July 2002, the temporal and spatial distribution characteristics of air pollutant concentration s and the influence of meteorological and non meteorological conditions on pollutant concentrations are analyzed.

利用 2 0 0 1年 8月 1日至 2 0 0 2年 7月 31日的气象资料和逐时污染物浓度数据，分析福州市污染物的时空分布特征，气象条件和非气象条件对污染物浓度的影响。

Membrane permeability, malondialdehyde contents and activities of antioxidant enzymes in Kochia prostrata seedlings were studied under different concentrations of salt stress. The result showed that the membrane permeability and MDA contents increased with the increasing of salt concentrations.

通过不同浓度的盐胁迫对木地肤Kochia prostrata幼苗细胞膜透性、丙二醛和3种保护酶活性的测定，获得以下结果：随着盐浓度的增加和胁迫时间的延长，幼苗叶片的细胞膜透性呈递增趋势，且浓度≥150mmol/L时，细胞膜透性与对照有极显著差异(P.01)。

The concentrations of TN in all the treatments decreased to lower levels at the middle and latter periods of the experiment, and those of TP also decreased at larger extents. Compared with the control, DDT at 200μg·L-1 inhibited growth and reproduction of the dominant macrophyte Lemna minor, but the reverse was found for DDT at other concentrations.

和对照组相比，200.0μg·L-1的DDT对大型水生植物优势种类浮萍的生长繁殖具有抑制作用，而其它浓度的DDT具有促进作用；DDT对菹草的生长影响不明显。

METHODS: The different concentrations of natural monoclonal antikeratin antibody IgM 3B4 were incubated with Candida albicans yeast phase suspension on condition that profited germ tube formation of Candida albicans to observe the action of natural monoclonal antikeratin antibody IgM 3B4 to Candida albicans germ tube formation.And the different concentrations of natural monoclonal antikeratin antibody IgM 3B4 were incubated with the mixed suspenions of Candida albicans yeast phase with malpighian cells, human buccal epithelial cells, endothelial cells of fetal umbilical vein, respectively, to observe the action of natural monoclonal antikeratin antibody IgM 3B4 to the adhesion of Candida albicans to malpighian cells, human buccal epithelial cells and endothelial cells of fetal umbilical vein.

将不同浓度的单克隆天然抗角蛋白抗体IgM 3B4分别与白念珠菌酵母相悬液在有利于芽管形成的条件下共同孵育，倒置显微镜下计数白念珠菌总数以及白念珠菌芽管数；将不同浓度的单克隆天然抗角蛋白抗体IgM 3B4与白念珠菌酵母相和人角质形成细胞混悬液、白念珠菌酵母相和人口腔黏膜上皮细胞混悬液、白念珠菌酵母相和胎儿脐静脉内皮细胞混悬液共同孵育，分别计数人角质形成细胞、人口腔黏膜上皮细胞、胎儿脐静脉内皮细胞上粘附的白念珠菌数。

Keratin antibody IgM 3B4 specifically against Candida albicans in vitro. METHODS: The different concentrations of natural monoclonal anti??keratin antibody IgM 3B4 were incubated with Candida albicans yeast phase suspension on condition that profited germ tube formation of Candida albicans to observe the action of natural monoclonal anti??keratin antibody IgM 3B4 to Candida albicans germ tube formation.And the different concentrations of natural monoclonal anti??keratin antibody IgM 3B4 were incubated with the mixed suspenions of Candida albicans yeast phase with malpighian cells, human buccal epithelial cells, endothelial cells of fetal umbilical vein, respectively, to observe the action of natural monoclonal anti??

将不同浓度的单克隆天然抗角蛋白抗体IgM 3B4分别与白念珠菌酵母相悬液在有利于芽管形成的条件下共同孵育，倒置显微镜下计数白念珠菌总数以及白念珠菌芽管数；将不同浓度的单克隆天然抗角蛋白抗体IgM 3B4与白念珠菌酵母相和人角质形成细胞混悬液、白念珠菌酵母相和人口腔黏膜上皮细胞混悬液、白念珠菌酵母相和胎儿脐静脉内皮细胞混悬液共同孵育，分别计数人角质形成细胞、人口腔黏膜上皮细胞、胎儿脐静脉内皮细胞上粘附的白念珠菌数。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。