Chlorsulfuron resistance in silky bent-grass (Apera spica-venti (L.) Beauv.) in the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A16201" target="_blank" >RIV/60460709:41210/06:16201 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Chlorsulfuron resistance in silky bent-grass (Apera spica-venti (L.) Beauv.) in the Czech Republic

Original language description

Control failures of Apera spica-venti in winter cereals fields are frequently encountered by farmers across the Czech Republic. Seeds of A. spica-venti from 40 accessions were collected to test them for resistance to ALS-inhibiting herbicides. The offspring of these populations were investigated using both whole plant bioassays and biochemical assays. The biotypes were compared with a susceptible biotype originated from Switzerland. Five biotypes were evaluated as highly resistant to chlorsulfuron in whole plant bioassays with RF (resistance factors) ranging from 6.7 to 1815. A treatment of the resistant biotypes with 1920 g per ha of chlorsulfuron reached an efficacy of only 30 %. For those five biotypes the difference of ALS activity in biochemical assays proved a target-site resistance as being involved in the resistance phenomenon.

Czech name

Rezistence chundelky metlice vůči chlorsulfuronu

Czech description

Control failures of Apera spica-venti in winter cereals fields are frequently encountered by farmers across the Czech Republic. Seeds of A. spica-venti from 40 accessions were collected to test them for resistance to ALS-inhibiting herbicides. The offspring of these populations were investigated using both whole plant bioassays and biochemical assays. The biotypes were compared with a susceptible biotype originated from Switzerland. Five biotypes were evaluated as highly resistant to chlorsulfuron in whole plant bioassays with RF (resistance factors) ranging from 6.7 to 1815. A treatment of the resistant biotypes with 1920 g per ha of chlorsulfuron reached an efficacy of only 30 %. For those five biotypes the difference of ALS activity in biochemical assays proved a target-site resistance as being involved in the resistance phenomenon.

Type

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

CEP classification

GA - Agricultural economics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Zeitschrift für Pflanzenkrank.und Pflanzenschutz

ISSN

0340-8159

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

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Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

138-146

UT code for WoS article

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EID of the result in the Scopus database

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