In this paper, 1554 strains of bacteria were isolated from the soybean rhizophere in the different continuous systems. Those biocontrol bacteria were screened in vitro and in vivo. 6 strains of them had the better control efficacy. They exhibited the different antagonism to the pathogens of soybean root in vitro. The strains 18BR2-2 and 18BR9-1 showed a wide range of antagonism against Fusarium oxysporum, F. avenaoeum, F. solani and Rhizoctonia solani in vitro. The 6 strains exhibited different control efficacy to soybean root rot in greenhouse and in field. In greenhouse, they could decrease the degree of soybean disease significantly, and the control efficacy of 18BR2-2 was the best and can reach 45.90%. In theory, soybean treated by 18BR2-2 may postpone the days of outbreaking of disease for 6 days. The strain 18BR2-2 also promoted the growth of soybean seedling and, raising the soybean height for 11.24%, increasing dry weight for 40.91% and fresh weight for 35.27%.

本研究從長(zhǎng)期連作田種植的大豆及其根際土壤中分離細(xì)菌1554株，采用平板測(cè)試国产欧美日韩A片、溫室盆栽及田間試驗(yàn)等方法，篩選了對(duì)大豆根腐病菌(主要是尖孢鐮孢菌Fusarium oxysporum)有很好作用效果的生防細(xì)菌6株，在離體的條件下均表現(xiàn)出不同程度的拮抗作用欧美精品一一色哟哟，其中生防細(xì)菌18BR2-2和18BR9-1表現(xiàn)出很廣的殺菌譜，對(duì)大豆根腐病菌尖孢鐮孢菌(F.oxysporum)、燕麥鐮孢菌(F.avenaoeum)国产h片免费、茄腐鐮孢菌和立枯絲核菌都有很好的離體拮抗作用99久久精神视频，并且這6株生防細(xì)菌在盆栽和田間的情況下均表現(xiàn)出對(duì)大豆根腐病一定的防治效果。

The possible reason is that doped Zr〓 ion enters the interstitial sites for its small ionic radius and no dipole complexes were formed. Monovalent ion F〓 has been reported to improve the scintillating performance greatly. Our results show that Agrand diagrams of F〓: PWO crystals obey an modified Cole-Cole equation. The crystals present similar dielectric relaxation phenomena to but have much higher activation energy than that of RE〓: PWO crystals, which originate from the 〓 dipole complexes. The co-doping of trivalent Y〓 and pentavalent ion Nb〓 does not always show a better scintillation performance than that of solely doped samples, which could be attributed to the existence of the 〓 dipole complexes, which counteract the solely doping effect.

而Zr〓由于離子半徑太小日韩精品一区二区AV免费，可能進(jìn)入間隙位置公婬荡乱婬视频，不形成類(lèi)似的偶極缺陷；一價(jià)負(fù)離子F〓的摻入提高了晶體閃爍性能人人操人人在线，阻抗譜測(cè)試結(jié)果表明F〓：PWO晶體Argand圖符合修正的Cole—Cole方程中文字幕人成乱码熟女免费，晶體同樣表現(xiàn)出介電弛豫現(xiàn)象，并具有比RE〓：PWO晶體中高得多的弛豫激活能a毛片免费全部播放完整网站，可能起源于形成的〓偶極缺陷国产盗摄一区二区三区厕所视频；Y〓和Nb〓雙摻的PWO晶體并沒(méi)有顯示出兩種離子單摻優(yōu)點(diǎn)的疊加，阻抗譜測(cè)量結(jié)果表明日本中文字幕系列网站，在雙摻晶體中可能形成〓偶極缺陷www..com欧美一级大片，使兩者摻雜作用相互抵消。

In 1959 Sauerbrey developed an empirical equation to describe the mass sensitivity of gas phase mass deposition on a piezoelectric quartz crystal——Sauerbrey equation:ΔF=〓=-CΔm, where ΔF is measured frequency shift, in Hz; F〓 is the fundamental resonant frequency, in Hz;Δm is mass change, in g; A is piezoelectrically active area , in cm〓;μ〓 is shear modulus of quartz, 2. 947×10〓g· cm〓;ρ〓 is density of quartz, 2. 648g·cm〓; C is mass sensitivity constant , in 〓.

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The amount of radiopacity promoted by rDBM/f and rhFGF-1/f at 8 weeks was equivalent and was greater than antecedent times.

在8個(gè)星期rDBM/f和rhFGF-1/f促進(jìn)了的防輻射的數(shù)量是等價(jià)物并且是偉大的與比先行的時(shí)間。

Compared to previous approaches on the same MEDLINE abstracts, the presented resolution was promising for its 92% F-Score in pronominal anaphora and 78% F-Score in sortal anaphora.

與其它方法在相同語(yǔ)料做比較久久婷婷国产综合日韩欧美，所提的方法處理指代詞指代現(xiàn)象可達(dá)到92% F-Scorec和名詞指代現(xiàn)象可達(dá)到78% F-Scorewww.cn222aaa天天视频。

METHODS: Rat mesenchymal stem cells at passage 3 were obtained under sterile condition, and divided into groups A-F. In group A, iodine ion was not added. In groups B-F, iodine ion at mass concentrations of 2, 55, 90, 125 and 2 500 mg/L was added respectively. An additional blank control group was established, and simultaneously the cells were induced into neuron-like cells with dimethyl sulphoxide.

無(wú)菌條件下取大鼠第3代間充質(zhì)干細(xì)胞，分為A~F組：A組不加碘離子不卡黄色视频在线观看，B~F組中分別加入質(zhì)量濃度為2人人插人人做，55，90国产精品sss在线观看AV，125和2 500 mg/L的碘離子日韩侵犯精品视频在线，另設(shè)空白對(duì)照組，同時(shí)加化學(xué)誘導(dǎo)劑二甲基亞砜向神經(jīng)元方向誘導(dǎo)分化性色网站污视频。

The results indicated as pH values in the range from 4.50 to 7.50, the volume and dry weight of root increased as pH values increased, as well as AAAR,TAAR. The relationship of nicotine and total nitrogen accumulation with pH values was parabola,the functions were Y=-61.429X2+391.17X-162.8 (F=l 8.45), Y=-24.3X2+154.88X+52.7 (F=14.40**) respectively. When pH value got rise to 7.50, the accumulation of nicotine and total nitrogen attained the highest .

主要研究結(jié)果如下： 1 不同pH值(4.50超碰a、5.50、6.50欧美性爱亚洲性爱一级、7.50女人16一毛片、8.50)對(duì)烤煙根系發(fā)育、根系吸收面積以及對(duì)煙葉煙堿国产欧美精品、總氮国产老女人操逼视频、蛋白質(zhì)和多酚物質(zhì)積累影響的研究結(jié)果表明pH值在4.50～7.50范圍內(nèi)，根系體積和干重都隨著pH值上升而增加，AAAR黄色国产一级片浪潮骚货、TAAR也隨著升高国产一级黄色无码，煙葉中煙堿、總氮累積量隨著pH值上升而增加真人自慰120秒免费观看，煙堿和總氮累積量與pH之間呈拋物線(xiàn)關(guān)系黄色网站A片多人插，關(guān)系式分別為Y=-61.429X~2+391.17X-162.8，F(xiàn)=18.45~91A片网站；Y=-24.3X~2+154.88X+52.7不卡a片免费在线观看，F(xiàn)=14.40~，pH值對(duì)煙堿和總氮累積量的影響存在極顯著差異www日韩网站，當(dāng)pH值升至7.50時(shí)一级a性色生活片毛片黄长官一，煙堿和總氮累積量達(dá)到最高值。

Based on the knowledge of real f -algebra, the important properties of semi and unital complex f -algebra are studied.

以實(shí)f-代數(shù)的理論作為基礎(chǔ)国产美女特级片免费视频播放器，主要討論了半素和有單位元的復(fù)f-代數(shù)的重要性質(zhì)可以直接看黄色视频的网站。。

This time, the weighted F-value is 4.898, unweighted F-value is 2.957, that shows the weighted gap between class are more obvious that unweighted one, that is, the accuracy of the clustering algorithm is significantly higher than unweighted fuzzy clustering algorithm.

此時(shí)，加權(quán)的F值為4.898国产v亚洲v日韩v欧美v天堂Ⅴ，未加權(quán)的F值為2.957欧美日韩精品二区在线，說(shuō)明加權(quán)的類(lèi)間的差距比未加權(quán)的明顯，即該算法聚類(lèi)準(zhǔn)確率要明顯高于未加權(quán)的模糊聚類(lèi)算法山外精品影院。

Given the definition, the statement "water is the waterish stuff" is contingent, but a priori, since if we replace "water" with its definition in this statement, the result will have the form the actual F = the F .

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