Frekvence virulencí ke genům odolnosti obsaženým v odrůdách ječmene ozimého

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25328859%3A_____%2F04%3A00009758" target="_blank" >RIV/25328859:_____/04:00009758 - 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

Virulence frequencies to powdery mildew resistance genes of winter barley cultivars

Popis výsledku v původním jazyce

Virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars were studied. Random samples of the population were obtained from the air by means of a mobile version of a jet spore sampler mounted on the car roof. Conidia were sampled by driving across the Czech Republic. Fourteen differentials, carrying 18 out of 20 currently identified resistance genes present in winter barley cultivars, were used. High virulence frequencies (85?100%) to most resistance genes were found.Lower virulence frequencies (14.1?40.1%) were found to the three resistance genes only [preliminary designated Mlu(Va), Mlu(Dt) and Mlu(Ca)] that have not been described yet. The importance of resistance of winter barley cultivars is discussed with respect to limiting the speed of the pathogen adaptation to genetic resistances possessed by commercial cultivars of both winter and spring barley and necessity of increasing the effectiveness of costs for powdery mildew control in barley.

Název v anglickém jazyce

Virulence frequencies to powdery mildew resistance genes of winter barley cultivars

Popis výsledku anglicky

Virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars were studied. Random samples of the population were obtained from the air by means of a mobile version of a jet spore sampler mounted on the car roof. Conidia were sampled by driving across the Czech Republic. Fourteen differentials, carrying 18 out of 20 currently identified resistance genes present in winter barley cultivars, were used. High virulence frequencies (85?100%) to most resistance genes were found.Lower virulence frequencies (14.1?40.1%) were found to the three resistance genes only [preliminary designated Mlu(Va), Mlu(Dt) and Mlu(Ca)] that have not been described yet. The importance of resistance of winter barley cultivars is discussed with respect to limiting the speed of the pathogen adaptation to genetic resistances possessed by commercial cultivars of both winter and spring barley and necessity of increasing the effectiveness of costs for powdery mildew control in barley.

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

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Plant Protection Science

ISSN

1212-2580

e-ISSN

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Svazek periodika

40

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

135-140

Kód UT WoS článku

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EID výsledku v databázi Scopus

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