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不同杀菌剂拌种对小麦全蚀病的防治作用研究
刘金晶,陈莉,王丽梅,丁克坚
0
(安徽农业大学植物保护学院,合肥 230036)
摘要:
为筛选防治小麦全蚀病的安全、高效药剂,测定8种杀菌剂对全蚀病菌的毒力,并通过盆栽试验研究其防效及对小麦的安全性。结果表明,咪鲜胺和丙环唑对菌株菌丝生长的抑制作用较强,EC50分别为0.11 μg·mL-1和0.13 μg·mL-1;多菌灵和丙环唑在标准浓度下对小麦全蚀病有较好的防治作用,防效分别为71.13%和64.74%;参试药剂对小麦出苗、苗高和根系发育均有一定的影响。综合考虑防治效果和对小麦安全性,防治小麦全蚀病可以将多菌灵和丙环唑等三唑类药剂复配使用。
关键词:  小麦全蚀病  杀菌剂  毒力  防效  安全性
DOI:10.13610/j.cnki.1672-352x.20141225.007
投稿时间:2014-08-05
基金项目:国家科技支撑项目(2012BAD04B09)资助。
Wheat take-all control by seed treatment with different fungicides
LIU Jinjing,CHEN Li,WANG Limei,DING Kejian
(School of Plant Protection, Anhui Agricultural University, Hefei 230036)
Abstract:
To screen effective and safe fungicides for control wheat take-all, the toxicity, control efficiency and safety of eight fungicides, were investigated in pot experiment. The results indicated that the inhibitory effect of prochloraz and propiconazole on hypha growth were both stronger than the other fungicides, and the value of EC50 were respectively 0.11 μg·mL-1 and 0.13 μg·mL-1.The control efficiencies of carbendazim and propiconazole on wheat take-all were better than the others at standard concentration, 71.13% and 64.74%, respectively. All the tested fungicides had some impact on wheat emergence, height and root development. By considering the control effect and safety, the mixture of carbendazim and propiconazole are used to prevent wheat take-all disease.
Key words:  Gaeumannomyces graminis var. tritici  fungicides  toxicity  control effect  safety

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