| 植物源杀菌剂奥麦丁锌对油菜菌核病菌的毒力及田间防效 |
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| 引用本文： | 杨红福,汪智渊,张世军.植物源杀菌剂奥麦丁锌对油菜菌核病菌的毒力及田间防效[J].中国油料作物学报,2007,29(4):487-499. |
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| 作者姓名： | 杨红福 汪智渊 张世军 |
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| 作者单位： | 1、江苏丘陵地区镇江农科所 句容 212400，2、江苏省句容市农业局 句容 212400 |
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| 摘 要： | 室内毒力测定结果表明，植物源化合物奥麦丁锌（ZPT）对油菜菌核病菌菌丝生长具有显著的抑制作用， EC50值为1.5 µg/mL。ZPT在离体油菜叶片上对油菜菌核病具有明显的防病效果。25%奥麦丁锌可湿性粉剂 200、500µg/mL对油菜叶片菌核病病斑扩展抑制率分别达到83.2%和100%。田间药效试验结果表明， 25%奥麦丁锌可湿性粉剂100克/666.7m2兑水喷雾，对油菜菌核病病具有80%左右的防治效果。
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| 关 键 词： | 奥麦丁锌，防治，油菜菌核病 文献标识码:A |
Toxicity of ZPT to Sclerotinia sclerotiorum and its control effect against the disease on oilseed rape |
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YANG hong-fu,WANG zhi-yuan,ZHANG shi-jun
.Toxicity of ZPT to Sclerotinia sclerotiorum and its control effect against the disease on oilseed rape[J].Chinese Journal of Oil Crop Sciences,2007,29(4):487-499. |
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| Authors: | YANG hong-fu WANG zhi-yuan ZHANG shi-jun
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| Abstract: | Objective of this study is to investigate effects of ZPT(2-mereaptopyridine-N-oxide zine ), a fungicide derived from plants, on Sclerotinia mycelial growth and the disease control. The results indicated that ZPT the fungicide could strongly inhibit on mycelial growth of sclerotiorum ,and its EC50 value was 1.5µg/mL. In the experiment of detached leaf inoculation with mycelial agar discs, disease lesions reduced 72% when ZPT suspension at 10 ug/mL was applied onto leaf surface and when ZPT concentration increased to 500 infection was completely inhibited. In field experiments, the control effect of 25%ZPT (wettable powder ) against sclerotinia disease in oilseed rape reached about 80% when foliar spray at the flowering stage. it was used as foliar spray at the flowering stage. |
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