Population structure of Phytophthora infestans relating to mating types and fungicide resistance in 2003 ? 2006 and the efficacy of fungicides against potato late blight

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F07%3A23402" target="_blank" >RIV/60460709:41210/07:23402 - isvavai.cz</a>

Alternative codes found

RIV/60109807:_____/07:#0000062

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Population structure of Phytophthora infestans relating to mating types and fungicide resistance in 2003 ? 2006 and the efficacy of fungicides against potato late blight

Original language description

During 2003 ? 2006 potato and tomato plants with late blight symptoms were collected from various regions and localities of the Czech Republic. A total of 352 Phytophthora infestans isolates were collected and analysed for mating types and metalaxyl anddimethomorph sensitivity. Mating types were determined using the conventional pairing assay and CAPS technique and ratio of A1 to A2 mating type was recorded 68 % : 32 % for the benefit of A1 mating type. Almost all isolates were found metalaxyl and dimethomorph sensitive. Only 18 isolates from 2003 were resistant and four isolates from 2004 were intermediate to active substance metalaxyl. Simultaneously, exact field trials with the medium-early potato variety Ditta were established on experimental station PRI Havlíčkův Brod ? Valečov and studied the efficacy of fungicides against potato late blight. In 2003 no late blight occurred in the trials; however, tuber yields increased in majority of fungicides. The years 2004 ? 2006 were chara

Czech name

SLOŽENÍ POPULACÍ PHYTOPHTHORA INFESTANS Z HLEDISKA POHLAVNÍCH TYPŮ A REZISTENCE K FUNGICIDŮM V LETECH 2003 ? 2006 A ÚČINNOST FUNGICIDŮ PROTI PLÍSNI BRAMBORU

Czech description

During 2003 ? 2006 potato and tomato plants with late blight symptoms were collected from various regions and localities of the Czech Republic. A total of 352 Phytophthora infestans isolates were collected and analysed for mating types and metalaxyl anddimethomorph sensitivity. Mating types were determined using the conventional pairing assay and CAPS technique and ratio of A1 to A2 mating type was recorded 68 % : 32 % for the benefit of A1 mating type. Almost all isolates were found metalaxyl and dimethomorph sensitive. Only 18 isolates from 2003 were resistant and four isolates from 2004 were intermediate to active substance metalaxyl. Simultaneously, exact field trials with the medium-early potato variety Ditta were established on experimental station PRI Havlíčkův Brod ? Valečov and studied the efficacy of fungicides against potato late blight. In 2003 no late blight occurred in the trials; however, tuber yields increased in majority of fungicides. The years 2004 ? 2006 were chara

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GF - Diseases, pests, weeds and plant protection

OECD FORD branch

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Project

<a href="/en/project/QG50055" target="_blank" >QG50055: Potato late blight control according to varietal susceptibility to disease based on new knowledge of pathogen epidemiology with regard to environment, economical aspects of control and production quality.</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Vědecké práce Výzkumného ústavu bramborářského

ISSN

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e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

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Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

85-99

UT code for WoS article

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EID of the result in the Scopus database

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