Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials

In 2006–2010, resistance to the powdery mildew pathogen was studied in 225 winter barley cultivars of which 86 two-rowed and 139 six-rowed. The examined set included 59 cultivars tested in the official variety trials and 166 cultivars in variety trials conducted by domestic breeding stations in that...

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Main Author: Antonín Dreiseitl
Format: Article
Language:English
Published: Mendel University Press 2011-01-01
Series:Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
Subjects:
Online Access:https://acta.mendelu.cz/59/3/0023/
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author Antonín Dreiseitl
author_facet Antonín Dreiseitl
author_sort Antonín Dreiseitl
collection DOAJ
description In 2006–2010, resistance to the powdery mildew pathogen was studied in 225 winter barley cultivars of which 86 two-rowed and 139 six-rowed. The examined set included 59 cultivars tested in the official variety trials and 166 cultivars in variety trials conducted by domestic breeding stations in that period. Thirteen known resistances were identified (Ar, Bw, Dr2, Ha, HH, IM9, La, Ly, Ra, Ru, Sp, St and We). No resistance was found in one cultivar only. The most frequent resistance was Ra detected in 114 cultivars (= 50.7%). The resistance Bw was found in 54 cultivars (24.0%). Resistances typical for spring barley cultivars (Ly, Sp, Ru and We) were also frequent (4.0% to 23.6%). Unknown resistances were found in 20 cultivars, in nine of which they were effective to all used pathotypes of the pathogen. Thirty-six cultivars (16.0%) exhibited heterogeneity in the examined trait, i.e. they were mostly composed of lines with different resistances. Research on cultivars possessing unknown resistances continues.
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spelling doaj.art-c3e95c5a65f54936867daa2c8bab1fcf2022-12-22T02:33:03ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102011-01-01593232810.11118/actaun201159030023Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trialsAntonín Dreiseitl0Agrotest Fyto Ltd., Havlíčkova 2787, 767 01 Kroměříž, Česká republikaIn 2006–2010, resistance to the powdery mildew pathogen was studied in 225 winter barley cultivars of which 86 two-rowed and 139 six-rowed. The examined set included 59 cultivars tested in the official variety trials and 166 cultivars in variety trials conducted by domestic breeding stations in that period. Thirteen known resistances were identified (Ar, Bw, Dr2, Ha, HH, IM9, La, Ly, Ra, Ru, Sp, St and We). No resistance was found in one cultivar only. The most frequent resistance was Ra detected in 114 cultivars (= 50.7%). The resistance Bw was found in 54 cultivars (24.0%). Resistances typical for spring barley cultivars (Ly, Sp, Ru and We) were also frequent (4.0% to 23.6%). Unknown resistances were found in 20 cultivars, in nine of which they were effective to all used pathotypes of the pathogen. Thirty-six cultivars (16.0%) exhibited heterogeneity in the examined trait, i.e. they were mostly composed of lines with different resistances. Research on cultivars possessing unknown resistances continues.https://acta.mendelu.cz/59/3/0023/<i>Blumeria graminis</i> f.sp. <i>hordei</i><i>Hordeum vulgare</i>postulation of resistancespowdery mildewwinter barley
spellingShingle Antonín Dreiseitl
Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
<i>Blumeria graminis</i> f.sp. <i>hordei</i>
<i>Hordeum vulgare</i>
postulation of resistances
powdery mildew
winter barley
title Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
title_full Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
title_fullStr Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
title_full_unstemmed Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
title_short Frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
title_sort frequency of powdery mildew resistances in winter barley cultivars tested in domestic variety trials
topic <i>Blumeria graminis</i> f.sp. <i>hordei</i>
<i>Hordeum vulgare</i>
postulation of resistances
powdery mildew
winter barley
url https://acta.mendelu.cz/59/3/0023/
work_keys_str_mv AT antonindreiseitl frequencyofpowderymildewresistancesinwinterbarleycultivarstestedindomesticvarietytrials