| 不同杀菌剂对火龙果茎枯病病菌的室内毒力测定 |
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| 引用本文： | 郑伟,蔡永强,王彬. 不同杀菌剂对火龙果茎枯病病菌的室内毒力测定[J]. 贵州农业科学, 2009, 37(8) |
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| 作者姓名： | 郑伟 蔡永强 王彬 |
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| 作者单位： | 贵州省果树科学研究所,贵州,罗甸,550100;贵州省果树科学研究所,贵州,罗甸,550100;贵州省果树科学研究所,贵州,罗甸,550100 |
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| 基金项目： | 贵州省农业科技攻关项目贵州南部低热河谷地区火龙果产业化技术研究 |
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| 摘 要： | 为筛选高效、安全的杀菌剂用于生产,采用生长速率法,在室内测定了6种杀菌剂对火龙果茎桔病病菌的毒力作用.结果表明:6种杀菌剂在试验浓度下对火龙果茎枯病菌菌丝的生长均有不同程度的抑制作用,其抑制率随浓度的增加而增加,同时药剂间抑制率也有明显差异,按照EC50值比较不同杀菌剂的毒力大小依次为50%福美双WP、50%多菌灵·硫WP、70%代森锰锌WP、70%川东甲托WP、42%克菌净WP争75%百菌清WP.其中.抑制效果最好的是50%福美双WP,其次是50%多菌灵·硫WP,75%百菌清WP效果最差.
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| 关 键 词： | 火龙果 茎枯病 杀菌剂 毒力测定 |
Toxicity Measurement of Different Fungicides on Pathogen of Pitaya Stem Blight |
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| ZHENG Wei,CAI Yong-qiang,WANG Bin. Toxicity Measurement of Different Fungicides on Pathogen of Pitaya Stem Blight[J]. Guizhou Agricultural Sciences, 2009, 37(8) |
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| Authors: | ZHENG Wei CAI Yong-qiang WANG Bin |
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| Affiliation: | ZHENG Wei,CAI Yong-qiang,WANG Bin(Guizhou Fruit Institute,Luodian,Guizhou 550100) |
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| Abstract: | In order to select effective and safe fungicide for pitaya production,indoor toxicity measurement of six fungicides on pathogen of pitaya stem blight was carried by growth-rate method.The results showed that the six fungicides can inhibit pathogen mycelium growth of pitaya stem blight at different levels and the inhibition rate increase along with fungicide concentration's increase.The inhibition rate of different fungicides varies significantly.Toxicity of different fungicides in term of EC50 value drops i... |
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| Keywords: | pitaya stem blight fungicide toxicity measurement |
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