Variabilita rezistence k fungicidům v České populaci plísně okurkové

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F07%3A00003594" target="_blank" >RIV/61989592:15310/07:00003594 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Variation for fungicide resistance in Czech populations of Pseudoperonospora cubensis

Popis výsledku v původním jazyce

During the growing season between the years 2001-2004, 98 isolates of Pseudoperonospora cubensis from nine regions of the Czech Republic were collected and screened for tolerance/resistance to the three frequently used fungicides. (propamocarb, fosetyl-Al, metalaxyl). Fungicides were tested in five different concentrations, using a floating discs bioassay. Fungicide effectiveness varied considerably. Propamocarb appeared the most effective. Fosetyl-Al was effective at the recommended concentration of 1600 ?g a.i./ml against all isolates. However, the occurrence of isolates (collected in 2001) which sporulated at low concentrations (400 and 800 ?g a.i./ml) indicated that the selection for tolerance occurs in the pathogen population. Nevertheless this phenomenon was not confirmed with the P. cubensis isolates collected between the years 2002 and 2004. Metalaxyl was found ineffective and a substantial shift to highly metalaxyl resistant strains was evident in the Czech P. cubensis populat

Název v anglickém jazyce

Variation for fungicide resistance in Czech populations of Pseudoperonospora cubensis

Popis výsledku anglicky

During the growing season between the years 2001-2004, 98 isolates of Pseudoperonospora cubensis from nine regions of the Czech Republic were collected and screened for tolerance/resistance to the three frequently used fungicides. (propamocarb, fosetyl-Al, metalaxyl). Fungicides were tested in five different concentrations, using a floating discs bioassay. Fungicide effectiveness varied considerably. Propamocarb appeared the most effective. Fosetyl-Al was effective at the recommended concentration of 1600 ?g a.i./ml against all isolates. However, the occurrence of isolates (collected in 2001) which sporulated at low concentrations (400 and 800 ?g a.i./ml) indicated that the selection for tolerance occurs in the pathogen population. Nevertheless this phenomenon was not confirmed with the P. cubensis isolates collected between the years 2002 and 2004. Metalaxyl was found ineffective and a substantial shift to highly metalaxyl resistant strains was evident in the Czech P. cubensis populat

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GF - Choroby, škůdci, plevely a ochrana rostlin

OECD FORD obor

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Projekt

<a href="/cs/project/QD1357" target="_blank" >QD1357: Systémy ochrany polní zeleniny vůči škodlivým organismům</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Phytopathology

ISSN

0931-1785

e-ISSN

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Svazek periodika

155

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

143-151

Kód UT WoS článku

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EID výsledku v databázi Scopus

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