不同杀菌剂对水稻纹枯病菌的室内毒力测定 |
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引用本文: | 李珊琳,陈加宾,杜晓英. 不同杀菌剂对水稻纹枯病菌的室内毒力测定[J]. 商界.城乡致富, 2013, 0(9): 16-17,27 |
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作者姓名: | 李珊琳 陈加宾 杜晓英 |
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作者单位: | 长江大学农学院,湖北荆州434025 |
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摘 要: | 【目的】为筛选出可有效防治水稻纹枯病的药剂,给其田间防治提供依据。【方法】以室内生长速率法对4种杀菌剂进行室内毒力测定。【结果】中噻呋·戊唑醇、精甲·咯·嘧菌和苯甲‘醚茵酯对水稻纹枯病菌的抑菌效果较好,其EC50分别为0.0761、0.0798和0.0353mg/L,中生菌素效果次之。【结论】在供试的几种药剂中,中噻呋·戊唑醇、精甲·咯·嘧茵和苯甲·醚茵酯具有较好的抑茵效果,建议用于水稻纹枯病的田间防治。
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关 键 词: | 水稻纹枯病 杀菌剂 抑茵作用 毒力测定 |
Determination on Toxicity of Different Fungicides to Rhizoctonia solani in Laboratory |
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Affiliation: | LI Shan-lin et al (College of Agriculture, Yangtze University, Jingzhou, Hubei 434025 ) |
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Abstract: | [Objective]The aim was to select fungicides that could effectively con- trol rice sheath blight disease. [Method] Toxicity of several fungicides on Rhizoctonia solani were determined by measuring mycelium growth rate. [Result] The mycelium growth inhibition of tebuconazole, difenoconazole fludioxonil FS and difenoconazole kresoxim-methyl SC were higher than others, the EC50 values of three fungicides were 0.076 1 mg/L, 0.079 8 mg/L, 0.035 3 mg/L ,respectively. And zhongshengmycin was second. [Conclusion] In the several supplied fungicides, tebuconazole, difenoconazole fludioxonil FS and difenoconazole kresoxim-methyl SC were best and could be used as effective pesticides to control rice sheath blight disease in field. |
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Keywords: | Rice sheath blight disease Fungicides Inhibition of mycelium growth Toxicity test |
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