| 苏云金芽胞杆菌油剂增效因子的筛选 |
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| 引用本文： | 刘明秋,戴经元.苏云金芽胞杆菌油剂增效因子的筛选[J].华中农业大学学报,2000,19(2):134-137. |
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| 作者姓名： | 刘明秋 戴经元 |
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| 作者单位： | 华中农业大学农业部微生物重点开放实验室,华中农业大学生命科学技术学院,武汉,430070 |
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| 摘 要： | 以小菜蛾、棉铃虫为生物测定昆虫 ,通过测定 5种无机盐 (Na2 CO3,K2 CO3,CaCl2 ,MgSO4 ,和MgCl2 )对苏云金芽胞杆菌油剂的增效作用进行增效因子的筛选。结果表明 ,以小菜蛾为供试昆虫 ,除CaCl2 外 ,其余 4种无机盐对苏云金芽胞杆菌油剂均表现增效作用 ,0 .0 10 %MgCl2 效果最好 ,增效比为 1.5 6。以棉铃虫为供试昆虫 ,5种无机盐对苏云金芽胞杆菌油剂均表现增效作用 ,0 .0 12 5 %MgSO4 效果最好 ,增效比为 1.6 9,0 .0 2 5 %的Na2 CO3 次之 ,增效比为 1.5 9
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| 关 键 词： | 苏云金芽胞杆菌 油剂 增效作用 增效因子 |
| 修稿时间： | 1999-12-06 |
Screening on chemical synergistic factors to Bt ( Bacillus thuringiensis ) oil formulation |
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| Liu Mingqiu,Dai Jingyuan,Yu Ziniu.Screening on chemical synergistic factors to Bt ( Bacillus thuringiensis ) oil formulation[J].Journal of Huazhong Agricultural University,2000,19(2):134-137. |
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| Authors: | Liu Mingqiu Dai Jingyuan Yu Ziniu |
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| Abstract: | Effects of five chemical synergistic factors (inorganic salts) on the toxicity of Bt oil formulation to Plutella xylostella and Heliothis armigera were tested. The results showed that four inorganic salts (CaCl 2 excluded) had synergistic effect on Bt oil for mation agaist P. xylostella and a marked increase in the potency of Bt oil formulation against Plutella xylostella was obtained in the presence of 0.01% MgCl 2 with 1.56 synergistic ratio. All five inorganic salts had synergistic effect on Bt oil formation against Heliothis armigera and 0.0125% MgSO 4 and 0.025% Na 2CO 3 had obvious synergism to Bt oil formulation against H. armigera with 1.69 and 1.59 synergistic ratio,respectively. |
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| Keywords: | Bacillus thuringiensis oil formulation Plutella xylostella Heliothis armigera synergism |
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