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Baseline sensitivity of Botrytis cinerea to fluazinam and cross-resistance

文献类型： 外文期刊

作者： Liu, Shengming 1 ; Fu, Liuyuan 1 ; Chen, Jinpeng 1 ; Wang, Shuan 1 ; Jiang, Jia 1 ; Zhang, Yong 2 ; Che, Zhiping 1 ; Tian 1 ;

作者机构： 1.Henan Univ Sci & Technol, Coll Forestry, Dept Plant Protect, Luoyang, Peoples R China

2.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei, Anhui, Peoples R China

关键词： baseline sensitivity; Botrytis cinerea; cross-resistance; fluazinam; grey mould

期刊名称：JOURNAL OF PHYTOPATHOLOGY （ 影响因子：1.789； 五年影响因子：1.574 ）

ISSN： 0931-1785

年卷期： 2019 年 167 卷 6 期

页码：

收录情况： SCI

摘要： Grey mould, caused by the fungus Botrytis cinerea Pers ex Fr., is a very destructive and important disease worldwide. Fluazinam is a phenylpyridinamine fungicide with broad-spectrum activities. The baseline sensitivity of B. cinerea to fluazinam is yet to be established in Henan Province, China. In this study, a total of 117 field isolates of B. cinerea were collected from 49 commercial greenhouses in different locations of Henan Province, in 2016, and the sensitivities of these isolates to fluazinam were determined based on mycelial growth. The effective concentration for 50% (EC50) values ranged from 0.0038 to 0.0441 mu g/ml, and the mean EC50 value was 0.0201 +/- 0.0081 mu g/ml for mycelial growth. The frequency distribution range presented a unimodal curve. To define the cross-resistance relationships, the linear correlation coefficients of the EC50 values between fluazinam and carbendazim, procymidone, pyrimethanil or boscalid were analysed. The results showed that no correlation was observed between fluazinam and the other tested fungicides. These results provide important information to growers for the prevention and control of grey mould.

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