Variation in the production of trichothecene mycotoxin deoxynivalenol (DON) in spring barley varieties after treatment with the fungicides azoxystrobin and tebuconazole

Josef Hýsek, Marie Váňová, Jana Hajšlová, Jana Brožová, Eliška Sychrová, Zuzana Radová-Sypecká, Václav Šíp, Světlana Sýkorová, Jana Chrpová and Ludvík Tvarůžek
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Josef Hýsek: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Marie Váňová: Agricultural Research Institute, Ltd., Kroměříž, Czech Republic
Jana Hajšlová: Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech Republic
Jana Brožová: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Eliška Sychrová: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Zuzana Radová-Sypecká: Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech Republic
Václav Šíp: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Světlana Sýkorová: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Jana Chrpová: Department of Mycology, Division of Phytomedicine, Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Ludvík Tvarůžek: Agricultural Research Institute, Ltd., Kroměříž, Czech Republic

Plant Protection Science, 2005, vol. 41, issue 2, 58-62

Abstract: Eight varieties of spring barley (Hordeum vulgaris Lin.) were artificially inoculated with a Fusarium culmorum (W.G. Smith) Saccardo - isolate and naturally infected in the middle of the flowering period, and 2 d later treated with the fungicides azoxystrobin or tebuconazol at a dose of 1 l/ha in 250 l of water. In both control and treated samples of grain the content of deoxynivalenol (DON), the main trichothecene mycotoxin produced by F. culmorum, was determined by gas chromatography (GC-ECD). The treatment with either fungicide resulted in elevated levels of DON, an effect that was more pronounced with azoxystrobin.

Keywords: deoxynivalenol; Fusarium culmorum; azoxystrobin; tebuconazole (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:41:y:2005:i:2:id:2745-pps

DOI: 10.17221/2745-PPS

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