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| 几种杀菌剂及其复配剂对烟草黑胫病菌的毒力测定 | |
| 引用本文： | 刘铭,尹福强,张文友,赵云飞,刘朝科.几种杀菌剂及其复配剂对烟草黑胫病菌的毒力测定[J].现代农业科技,2012(17):107-108,110. |
| 作者姓名： | 刘铭 尹福强 张文友 赵云飞 刘朝科 |
| 作者单位： | 1. 西昌学院农业科学院,四川西昌,615013 2. 凉山州烟草公司普格分公司 3. 川渝中烟有限责任公司 |
| 基金项目： | 四川省教育厅重点项目“凉山州烟草黑胫病病原菌群体结构研究及四川烟草种质资源的抗性评价” |
| 摘 要： | 在室内培养条件下,采用生长速率法测定了3种杀菌剂及其复配剂对烟草黑胫病的抑菌效果。结果表明:药剂浓度与抑制作用呈显著的正相关关系,毒力回归方程的相关系数均在0.940 0以上;不同杀菌剂对烟草黑胫病菌的菌丝生长均表现出抑制作用,敌克松、银法利、烯酰吗啉的EC50分别为162.67、113.19、67.84 mg/L;银发利与烯酰吗啉1∶1比例复配增效作用明显,按1∶3比例复配略有增效,按3∶1比例为相加作用。 |
| 关 键 词： | 烟草黑胫病菌 杀菌剂 复配剂 毒力测定 生长速率法 |
Toxicity Determination of Fungicides and Compounds to Phytophthora nicotianae |
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| Authors: | LIU Ming YIN Fu-qiang ZHANG Wen-you ZHAO Yun-fei LIU Chao-ke |
| Institution: | 1 School of Agricultural Sciences of Xichang College,Xichang Sichuan 615013;2 Puge County Tobacco Company of Sichuan Province; 3 China Tobacco Chuanyu Industrial Co.,Ltd.) |
| Abstract: | Under the laboratory incubation conditions,using the growth rate method,the inhibitory effect of three fungicides and their compound on Phytophthora nicotianae was determined.The results showed that the pharmaceutical concentration and inhibition presnted a significant positive correlation.All the concentration coefficients of the virulence of the regression equation were above 0.940 0;Different fungicides all showed inhibition of mycelial growth of Phytophthora nicotianae.The EC50 of fenaminosulf,Silver-haired Lee and enoyl morpholin were 162.67 mg/L,113.19 mg/L and 67.84 mg/L respectively;The Silver-haired Lee and enoyl morpholine ratio of 1∶1 compound synergic effect was obvious,and the ratio of 1∶3 compound had slight efficiency and ratio of 3∶1 had an additive effect. |
| Keywords: | Phytophthora parasitica fungicide compound toxicity test growth rate method |
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