大麦与谷类科学2018，Vol.35Issue(6)：40-45,57,7.
不同小麦品种和杀菌剂对赤霉病菌的抗性与防效
Scab Resistance in Different Wheat Varieties and Control Efficacy of Fungicides Against Fusarium graminearum
摘要
Abstract
In recent years, many wheat varieties have been planted in Sheyang area of Jiangsu Province; unfortunately, their disease resistance is weak and their seedsthemselves harbor a large number of pathogens. Besides, these wheat varieties are planted in a high sowing density, the management of fertilizers and water is ineffective, the effect of chemical control is insignificant, and the climate is unstable, resulting in severe occurrence of wheat scab. During the years with severe occurrence of scab, wheat yield declined by 50％ or even 100％. When the disease occurs, improper use of chemical agents further leads to an increase in the disease severity. In this study, the main wheat varieties planted in Sheyang area were evaluated in laboratory conditions for resistance to the pathogen causing scab;seven agents and seven drug combinations were assessed for their in vitro inhibition rate for the pathogen; and seven agents were sprayed onto wheat in the field to determine their field efficacy in controlling scab. The results showed that the wheat varieties Huaimai29, Jimai 22, and Lianmai 7 are highly resistant to scab in Sheyang area. The fungicides effective in inhibiting the pathogen of scab in laboratory conditions were 5％ Jinggangmycin suspension, 12.5％ diniconazole wettable powder, and 15％ triazolone wettable powder.The fungicide combinations with a strong inhibitory effect on the pathogen were 50％ carbendazim WP plus 15％ triazolone wettablepowder, and 12.5％ diniconol wettable powder plus 25％ cymene emulsifiable concentrate. Moreover, 5％ Jinggangmycin suspension and 25％ cymene emulsifiable concentrate were shown to be effective in controlling scab in the field.关键词
射阳地区/小麦赤霉病/杀菌剂/化学防治Key words
Sheyang area/Scab/Fungicide/Chemical control分类
农业科技引用本文复制引用
赵绍路,孙雪辉,严国红,万林生,孙红芹,孙明法,王爱民,朱国永,唐红生,施伟,刘凯..不同小麦品种和杀菌剂对赤霉病菌的抗性与防效[J].大麦与谷类科学,2018,35(6):40-45,57,7.基金项目
中低产田稻麦周年优质稳产集成创新与示范(BE2016341). （BE2016341）
