Resistance behaviour of Septoria tritici to some fungicides in the territory of the Czech Republic | Zendy

L. Tvarůžek | Zendy; P. Horáková | Zendy; Lu Ji | Zendy

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Resistance behaviour of Septoria tritici to some fungicides in the territory of the Czech Republic

Author(s) -

L. Tvarůžek,

P. Horáková,

Lu Ji

Publication year - 2012

Publication title -

acta agrobotanica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 9

eISSN - 2300-357X

pISSN - 0065-0951

DOI - 10.5586/aa.2005.012

Subject(s) - fungicide , septoria , azoxystrobin , biology , population , horticulture , agronomy , medicine , environmental health

Reduction of colony diameter using two DMI-fungicides and one strobilurine fungicide was evaluated in the Septoria tritici population. In an in vitro assay, 57 strains of S. tritici originating from different parts of the Czech Republic were grown on agar plates containing different concentrations of fungicides. The mean EC50 values of strains were analysed for flusilazole (Capitain), metconazole (Caramba) and one strobilurine fungicide: azoxystrobin (Amistar). ED 50 values for metconazole were low. There were highly significant correlation in reaction of pathogen strains to metconazole and flusilazole. Some isolates showed significant higher level of resistance to azoxystrobin. The data will be used in a continuing survey of resistance development in the S. tritici population originating from the territory of the Czech Republic

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