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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。

The effects of the ratio of water and the sample, extracting temperature, extracting time, and the sample particle size on water-soluble active ingredients of Ampelopsis grossedentata were investigated with single factor and orthogonal experiments as a measure of total flavones and water extraction ratio.

以水溶性活性成分总黄酮和水浸提率作为衡量浸提效果的评价指标,分别采用单因素和正交实验L9(34)确定了茶水比、浸提温度、浸提时间和样叶粒度对显齿蛇葡萄总黄酮和水浸提率的影响,得出了影响的主次顺序为茶水比、浸提温度、样叶粒度和浸提时间。

The permanence of its inks relies in part on dyes that react with the surface of the paper's cellulose fibres. Once written, they resist a variety of solvents known to be used by forgers, as well as more mundane solvents like water.

Noodler's Ink 的&防弹&原理在于他的染料分子能与纸面纤维发生反应,一旦书写,笔迹能抵抗几乎所有已知的文件伪造方法,例如最简单的浸水

In three immersions, then, and with three invocations, the great mystery of baptism is performed.

洗礼的伟大奥迹,以三次浸水和三次呼名而完成。

My next Care was for some Ammunition and Arms; there were two very good Fowling-pieces in the great Cabbin, and two Pistols, these I secur'd first, with some Powder-horns, and a small Bag of Shot, and two old rusty Swords; I knew there were three Barrels of Powder in the Ship, but knew not where our Gunner had stow'd them, but with much search I found them, two of them dry and good, the third had taken Water, those two I got to my Raft, with the Arms, and now I thought my self pretty well freighted, and began to think how I should get to Shore with them, having neither Sail, Oar, or Rudder, and the least Cap full of Wind would have overset all my Navigation.

其次,我必须搞到枪枝和弹药。大舱里原来存放着两支很好的鸟枪和两支手枪,我都拿了来,又拿了几只装火药的角筒,一小包子弹和两把生锈的旧刀。我知道船上还有三桶火药,只是不知道炮手们把它们放在什么地方了。我找了半天,终于找到了。有两桶仍干燥可用,另一桶已浸水了。我就把两桶干燥的火药连同枪支一起放到木排上。这时我发现木排上装的东西已不少了,就开始动脑筋如何运上岸,因为一没帆、二没桨、三没舵,只要有点风,就会把木排打翻在海里。

During the rain, there are muddy spot and pool of water collected on the road surface, and even severe flooding at places.

每逢下雨时,路面更是充满泥泞及严重的浸水

On the 10th, 30th and 60th day after the tobacco stems were soaked in water, COD of water is 13.82 gL^(-1), 8.73 gL^(-1) and 5.43 gL^(-1) respectively.

试验样品浸水至第10 d、30 d、60 d时,水体COD含量分别为13.82 gL^(-1)、8.73 gL^(-1)、5.43 gL^(-1)。

The reasons of the silty mudstone disintegration are the expansion of water, the dissolution of cement, the tension stress and the tensile stress caused by dry-wet cycle of the rock.

粉砂质泥岩的崩解是由岩石浸水膨胀、胶结物溶解和干湿循环产生的拉应力与张应力共同引起的。

Using 305ester and other additives,instead of some TOTM to produce 105 ℃ PVC cable material for ship s,the electrical properties of the cable material and after immersed-in-water were tested.

用305酯增塑剂与其他添加剂配合使用,部分取代TOTM生产船用105℃PVC电线电缆料,并对其电性能、浸水后电性能等进行测试分析。

Every year, this inland delta system, among the largest on Earth, floods, turning a 10,000-square-mile (25,900-square-kilometer) swath at the edge of the Kalahari Desert into a soggy alluvial fan that hosts a mind-boggling diversity of animal life.

每年,这个内陆三角洲系统,其中最大的三角洲在地球上,洪水,转向把1.0万平方英里( 2.59万平方公里)在长列的边缘的喀拉哈里沙漠变成浸水的冲积扇形许多记忆惊人的多样性动物的生活。

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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。

Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.

有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。