[ Objective] The primary aim of this work was to investigate the synergistic effect of four organosilicone adjuvants to Avermectin against diamondback moth. [ Method] The combination method of laboratory toxicity dete...[ Objective] The primary aim of this work was to investigate the synergistic effect of four organosilicone adjuvants to Avermectin against diamondback moth. [ Method] The combination method of laboratory toxicity determination and field test was adopted to study the synergistic effects of four adjuvants to Aver- mectin against diamondback moth. [ Result] Laboratory test showed that the indoor toxicity of Abamectin added with adjuvants of RUNJIE, JIEXIAOLI, SIL- WET408 and SILWET312 was higher than that of Abamectin without adjuvants, indicating that the tested adjuvants had obvious synergistic effect on Avermectin. The synergistic effects of four adjuvants were basically the same, without significant difference with each other. Field test showed that when dosage of Avermectin was reduced by 1/4, the addition of 20g adjuvants per 666.7 m2 could reach the same control effect as the routinely recommended dose. It had no adverse effect on cabbage crops, and could be promoted in production. [Condusion] The study provided technology support for reduced dosage of pesticide in vegetable production.展开更多
本文用动态法测定averm ectin在甲醇、乙醇、正丙醇、正丁醇和正戊醇中的溶解度曲线,并分别用理想溶液模型、A pe l-b lat溶解度模型和多项式经验方程对实验测定溶解度数据进行关联。结果显示理想溶液模型的误差较大,多项式经验方程的...本文用动态法测定averm ectin在甲醇、乙醇、正丙醇、正丁醇和正戊醇中的溶解度曲线,并分别用理想溶液模型、A pe l-b lat溶解度模型和多项式经验方程对实验测定溶解度数据进行关联。结果显示理想溶液模型的误差较大,多项式经验方程的误差最小。实验得到的溶解度曲线及关联结果对averm ectin结晶工艺的研究具有较大的指导意义。展开更多
[Objective] Strain Biok Av-023 used as the control was employed on screening of high-avermectin yield mutants by rational screening.[Method] With Biok Av-023 as the original strain,the positive mutation strain was fir...[Objective] Strain Biok Av-023 used as the control was employed on screening of high-avermectin yield mutants by rational screening.[Method] With Biok Av-023 as the original strain,the positive mutation strain was firstly screened by routine UV mutagenesis,and then the high-yield avermectin producing strain was selected by the breeding way inferred by L-Ile induction.[Result] UV mutation and L-Ile directional screening had showed that the best L-Ile screening concentration was 0.5%,and the high-yield mutation strain AV60s-32 after re-screening reached the highest titer of 4520 IU/ml,which increased by 23.4% compared with the original strain.[Conclusion] The production of avermectin can be effectively enhanced by the combined way of UV mutation and L-Ile rational breeding.展开更多
基金Supported by Key Technologies of R&D Program of Shanxi Province ( 20120311019-1)Research Project Supported by Shanxi Scholarship Council of China ( 2012-110)+1 种基金Doctoral Research Fund of Shanxi Academy of Agricultural Sciences ( YBSJJ1006 )Key Technologies of R&D Program of Shanxi Academy of Agricultural Sciences ( 2012ygg16)
文摘[ Objective] The primary aim of this work was to investigate the synergistic effect of four organosilicone adjuvants to Avermectin against diamondback moth. [ Method] The combination method of laboratory toxicity determination and field test was adopted to study the synergistic effects of four adjuvants to Aver- mectin against diamondback moth. [ Result] Laboratory test showed that the indoor toxicity of Abamectin added with adjuvants of RUNJIE, JIEXIAOLI, SIL- WET408 and SILWET312 was higher than that of Abamectin without adjuvants, indicating that the tested adjuvants had obvious synergistic effect on Avermectin. The synergistic effects of four adjuvants were basically the same, without significant difference with each other. Field test showed that when dosage of Avermectin was reduced by 1/4, the addition of 20g adjuvants per 666.7 m2 could reach the same control effect as the routinely recommended dose. It had no adverse effect on cabbage crops, and could be promoted in production. [Condusion] The study provided technology support for reduced dosage of pesticide in vegetable production.
基金Supported by 863 Project (2009AA032904 )Scientific ResearchStarting-up Project for Young Teachers in Changshu Institute oTechnology" Hundreds of Entrepreneurs into Campus" Project inChangshu Institute of Technology~~
文摘[Objective] Strain Biok Av-023 used as the control was employed on screening of high-avermectin yield mutants by rational screening.[Method] With Biok Av-023 as the original strain,the positive mutation strain was firstly screened by routine UV mutagenesis,and then the high-yield avermectin producing strain was selected by the breeding way inferred by L-Ile induction.[Result] UV mutation and L-Ile directional screening had showed that the best L-Ile screening concentration was 0.5%,and the high-yield mutation strain AV60s-32 after re-screening reached the highest titer of 4520 IU/ml,which increased by 23.4% compared with the original strain.[Conclusion] The production of avermectin can be effectively enhanced by the combined way of UV mutation and L-Ile rational breeding.
