Virulence frequencies to powdery mildew resistance genes of winter barley cultivars
The virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars registered and newly tested in the Czech Republic were studied in 2000, 2002 and 2004. Random samples of the populations originating from winter and spring barley fields were obtained from the air by a...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2004-12-01
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| Series: | Plant Protection Science |
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| Online Access: | https://pps.agriculturejournals.cz/artkey/pps-200404-0004_virulence-frequencies-to-powdery-mildew-resistance-genes-of-winter-barley-cultivars.php |
| _version_ | 1797898584140546048 |
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| author | Antonín Dreiseitl |
| author_facet | Antonín Dreiseitl |
| author_sort | Antonín Dreiseitl |
| collection | DOAJ |
| description | The virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars registered and newly tested in the Czech Republic were studied in 2000, 2002 and 2004. Random samples of the populations originating from winter and spring barley fields were obtained from the air by a mobile version of a jet spore sampler mounted on a 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 only three resistance genes that have not been described yet; their preliminary designations are Ml(Va), Ml(Dt) and Ml(Ca). The importance of resistance of winter barley cultivars is discussed with respect to limiting the speed with which the pathogen adapts to genetic resistances possessed by commercial cultivars of both winter and spring barley, and to the necessity of lowering the costs for powdery mildew control in barley. |
| first_indexed | 2024-04-10T08:16:35Z |
| format | Article |
| id | doaj.art-bbd77ee2f66e424faa4cd05cd6702322 |
| institution | Directory Open Access Journal |
| issn | 1212-2580 1805-9341 |
| language | English |
| last_indexed | 2024-04-10T08:16:35Z |
| publishDate | 2004-12-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant Protection Science |
| spelling | doaj.art-bbd77ee2f66e424faa4cd05cd67023222023-02-23T03:43:47ZengCzech Academy of Agricultural SciencesPlant Protection Science1212-25801805-93412004-12-0140413514010.17221/466-PPSpps-200404-0004Virulence frequencies to powdery mildew resistance genes of winter barley cultivarsAntonín Dreiseitl0Agrotest, Agricultural Testing, Advisory Services and Research Ltd., Kroměříž, Czech RepublicThe virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars registered and newly tested in the Czech Republic were studied in 2000, 2002 and 2004. Random samples of the populations originating from winter and spring barley fields were obtained from the air by a mobile version of a jet spore sampler mounted on a 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 only three resistance genes that have not been described yet; their preliminary designations are Ml(Va), Ml(Dt) and Ml(Ca). The importance of resistance of winter barley cultivars is discussed with respect to limiting the speed with which the pathogen adapts to genetic resistances possessed by commercial cultivars of both winter and spring barley, and to the necessity of lowering the costs for powdery mildew control in barley.https://pps.agriculturejournals.cz/artkey/pps-200404-0004_virulence-frequencies-to-powdery-mildew-resistance-genes-of-winter-barley-cultivars.phpblumeria graminis f.sp. hordeierysiphe graminis f.sp. hordeipowdery mildewhordeum vulgarebarleywinter cultivarsvirulence frequenciesresistance genespathogen populations |
| spellingShingle | Antonín Dreiseitl Virulence frequencies to powdery mildew resistance genes of winter barley cultivars Plant Protection Science blumeria graminis f.sp. hordei erysiphe graminis f.sp. hordei powdery mildew hordeum vulgare barley winter cultivars virulence frequencies resistance genes pathogen populations |
| title | Virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| title_full | Virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| title_fullStr | Virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| title_full_unstemmed | Virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| title_short | Virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| title_sort | virulence frequencies to powdery mildew resistance genes of winter barley cultivars |
| topic | blumeria graminis f.sp. hordei erysiphe graminis f.sp. hordei powdery mildew hordeum vulgare barley winter cultivars virulence frequencies resistance genes pathogen populations |
| url | https://pps.agriculturejournals.cz/artkey/pps-200404-0004_virulence-frequencies-to-powdery-mildew-resistance-genes-of-winter-barley-cultivars.php |
| work_keys_str_mv | AT antonindreiseitl virulencefrequenciestopowderymildewresistancegenesofwinterbarleycultivars |