Sezónní změny v patogenitě a rezistenci k fungicidům v populaci plísně okurkové

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F07%3A00003593" target="_blank" >RIV/61989592:15310/07:00003593 - 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

Temporal changes in pathogenicity and fungicide resistance in Pseudoperonospora cubencis populations

Popis výsledku v původním jazyce

Temporal changes in the pathogenicity and fungicide resistance of populations of Pseudoperonospora cubensis (cucurbit downy mildew) in the Czech Republic from 2001 to 2003 were observed. Altogether, 152 P. cubensis isolates originated from Cucumis sativus infected leaves in 10 Czech regions were analysed for pathogenic variation, 74 of which were used for fungicide resistance screening. During the period studied, there was a considerable increase of pathogenicity that was expressed by a higher complexity of pathotypes and their increasing frequency. However, the diversity of the pathogen populations in general decreased. A similar phenomenon was observed in fungicide (metalaxyl, phosetyl-Al, propamocarb) effectiveness, which varied considerably. Propamocarb was the most effective, but the methalaxyl was ineffective and resistance to this fungicide was fixed in the pathogen populations. For phosetyl-Al, there was observed evidence of the start of selection for higher resistance in the P

Název v anglickém jazyce

Temporal changes in pathogenicity and fungicide resistance in Pseudoperonospora cubencis populations

Popis výsledku anglicky

Temporal changes in the pathogenicity and fungicide resistance of populations of Pseudoperonospora cubensis (cucurbit downy mildew) in the Czech Republic from 2001 to 2003 were observed. Altogether, 152 P. cubensis isolates originated from Cucumis sativus infected leaves in 10 Czech regions were analysed for pathogenic variation, 74 of which were used for fungicide resistance screening. During the period studied, there was a considerable increase of pathogenicity that was expressed by a higher complexity of pathotypes and their increasing frequency. However, the diversity of the pathogen populations in general decreased. A similar phenomenon was observed in fungicide (metalaxyl, phosetyl-Al, propamocarb) effectiveness, which varied considerably. Propamocarb was the most effective, but the methalaxyl was ineffective and resistance to this fungicide was fixed in the pathogen populations. For phosetyl-Al, there was observed evidence of the start of selection for higher resistance in the P

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

Acta Horticulturae

ISSN

0567-7572

e-ISSN

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Svazek periodika

N

Číslo periodika v rámci svazku

731

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

327-336

Kód UT WoS článku

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EID výsledku v databázi Scopus

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