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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Agronomy and Animal Industries</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Agronomy and Animal Industries</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Агрономия и животноводство</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-797X</issn><issn publication-format="electronic">2312-7988</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">19899</article-id><article-id pub-id-type="doi">10.22363/2312-797X-2023-18-2-174-185</article-id><article-id pub-id-type="edn">MMDGWU</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Plant protection</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Защита растений</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Influence of Xanthomonas euvesicatoria pv. allii on germination of 12 onion varieties</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние Xanthomonas euvesicatoria pv. allii на проращивание 12 сортов лука репчатого</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8505-3253</contrib-id><name-alternatives><name xml:lang="en"><surname>Kavhiza</surname><given-names>Nyasha J.</given-names></name><name xml:lang="ru"><surname>Кавиза</surname><given-names>Ньяша Джон</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD scholar, Department of Agrobiotechnology, Agrarian and Technological Institute</p></bio><bio xml:lang="ru"><p>аспирант, агробиотехнологический департамент, аграрно-технологический институт</p></bio><email>njkavhiza@rocketmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5208-0861</contrib-id><contrib-id contrib-id-type="scopus">57203177348</contrib-id><name-alternatives><name xml:lang="en"><surname>Zargar</surname><given-names>Meisam</given-names></name><name xml:lang="ru"><surname>Заргар</surname><given-names>Мейсам</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Agricultural Sciences, Associate Professor, Department of Agrobiotechnology, Agrarian and Technological Institute</p></bio><bio xml:lang="ru"><p>доктор сельскохозяйственных наук, доцент, агробиотехнологический департамент, аграрно-технологический институт</p></bio><email>zargar_m@rudn.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prikhodko</surname><given-names>Svetlana I.</given-names></name><name xml:lang="ru"><surname>Приходько</surname><given-names>Светлана Игоревна</given-names></name></name-alternatives><bio xml:lang="en">Head of the Laboratory of Bacteriology</bio><bio xml:lang="ru">заведующая лабораторией бактериологии</bio><email>svetlana.prik@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6493-6121</contrib-id><contrib-id contrib-id-type="scopus">56805238100</contrib-id><name-alternatives><name xml:lang="en"><surname>Pakina</surname><given-names>Elena N.</given-names></name><name xml:lang="ru"><surname>Пакина</surname><given-names>Елена Николаевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor, Department of Agrobiotechnology, Agrarian and Technological Institute</p></bio><bio xml:lang="ru"><p>доктор биологических наук, профессор, агробиотехнологический департамент, аграрно-технологический институт</p></bio><email>e-pakina@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1462-1329</contrib-id><contrib-id contrib-id-type="scopus">57605101300</contrib-id><name-alternatives><name xml:lang="en"><surname>Diakite</surname><given-names>Simbo</given-names></name><name xml:lang="ru"><surname>Диаките</surname><given-names>Симбо</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctoral Student of plant protection, Department of Agrobiotechnology, Agrarian and Technological Institute</p></bio><bio xml:lang="ru"><p>аспирант по защите растений, агробиотехнологический департамент, аграрно-технологический институт</p></bio><email>1042215234@pfur.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">All-Russian Plant Quarantine Center</institution></aff><aff><institution xml:lang="ru">Всероссийский центр карантина растений</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2023</year></pub-date><volume>18</volume><issue>2</issue><issue-title xml:lang="en">VOL 18, NO2 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 18, №2 (2023)</issue-title><fpage>174</fpage><lpage>185</lpage><history><date date-type="received" iso-8601-date="2023-07-09"><day>09</day><month>07</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Kavhiza N.J., Zargar M., Prikhodko S.I., Pakina E.N., Diakite S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Кавиза Н.Д., Заргар М., Приходько С.И., Пакина Е.Н., Диаките С.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Kavhiza N.J., Zargar M., Prikhodko S.I., Pakina E.N., Diakite S.</copyright-holder><copyright-holder xml:lang="ru">Кавиза Н.Д., Заргар М., Приходько С.И., Пакина Е.Н., Диаките С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://agrojournal.rudn.ru/agronomy/article/view/19899">https://agrojournal.rudn.ru/agronomy/article/view/19899</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Onion bacterial blight is a problematic disease affecting onion production in many countries. The disease is seed-transmitted, hence difficult to control. The study was based on the effects of bacteria on germination percentage and germination energy of various commercial onion varieties. Twelve commercial varieties were obtained from the market and inoculated with bacteria and then tested for germination percentage and germination energy. For most onion varieties, the level of germination inhibition increased with increasing bacterial concentration. On the 5th day of recording, the germination of onion seeds of the variety Karantansky which were inoculated with bacteria at a concentration of 108 CFU/ml differed significantly from the germination of seeds in the control variant. At the same time, seed germination was similar to the control when using bacteria at a concentration of 10<sup>6</sup> cfu/ml. On the 14th day of record, it was found that the highest concentration (10<sup>8</sup> CFU/ ml) caused the highest level of inhibition in most onion seeds, while moderate levels were observed at 10<sup>6</sup> CFU/ ml and the lowest concentration (10<sup>4</sup> CFU/ml) caused the least inhibition. In the cultivar Khaltsedon, seeds did not germinate at any of the bacterial concentrations compared to 8 % germination in the control. Regarding germination energy, the highest concentration of inoculum on the 5th day of record had the greatest effect in 3 varieties: Myachkovsky 300, Carmen MS and Khaltsedon with germination energy of 3, 2 and 0 %, respectively. In most varieties, the highest bacterial concentration of 10<sup>8</sup> CFU/ml had the least effect on germination energy, followed by 10<sup>6</sup> CFU/ml and the highest of 10<sup>4</sup> CFU/ml on the 14th day of record. However, there were no differences in the effect of concentrations for the varieties Karantansky and Khaltsedon, although all treatments differed significantly from controls (p &lt; 0.05).</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Бактериальный ожог лука — проблемное заболевание, причиняющее ущерб производству лука во многих странах. Заболевание передается через семена, поэтому с ним трудно справиться. Исследование основано на изучении влияния бактерий на прорастание различных коммерческих сортов лука. Двенадцать коммерческих сортов были получены с рынка и инокулированы бактериями, а затем проверены на процент прорастания и энергию прорастания. Для большинства сортов лука уровень ингибирования прорастания увеличивался с увеличением концентрации бактерий. На 5-й день наблюдений всхожесть семян лука сорта Карантанский при их инокулировании бактериями в концентрации 10<sup>8</sup> КОЕ/мл значительно отличалась от контрольного варианта. В то же время при использовании бактерий в концентрации 106 КОЕ/мл всхожесть семян была схожей с контролем. На 14-й день наблюдений было выявлено, что у большинства семян сортов лука самая высокая концентрация (108 КОЕ/мл) вызывала наивысший уровень ингибирования, в то время как при 10<sup>6</sup> КОЕ/мл наблюдались умеренные уровни, а при низшей концентрации (10<sup>4</sup> КОЕ/мл) — наименьшее ингибирование. У сорта Халцедон семена не прорастали ни при одной из бактериальных концентраций по сравнению со всхожестью 8 % в контроле. Что касается энергии прорастания, на 5-й день наблюдений самая высокая концентрация инокулята оказала наибольшее влияние на 3 сорта: Мячковский 300, Кармен МС и Халцедон с энергией прорастания 3, 2 и 0 % соответственно. У большинства сортов самая высокая концентрация бактерий 10<sup>8</sup> КОЕ/мл оказала наименьшее влияние на энергию прорастания, за ней следуют 10<sup>6</sup> КОЕ/мл, а наибольшее — 10<sup>4</sup> КОЕ/мл на 14-й день наблюдений. Однако для сортов Карантанский и Халцедон не было различий во влиянии концентраций, хотя все обработки значительно отличались от контроля (р &lt; 0,05).</p></trans-abstract><kwd-group xml:lang="en"><kwd>Allium cepa</kwd><kwd>onion seeds</kwd><kwd>onion bacterial blight</kwd><kwd>germination</kwd><kwd>seed germination energy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Allium cepa</kwd><kwd>семена лука репчатого</kwd><kwd>бактериальный ожог лука</kwd><kwd>всхожесть</kwd><kwd>энергия прорастания семян</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Nikus O, Mulugeta F. Onion seed production techniques. A Manual for Extension Agents and Seed Producers. Asella, Ethiopia; 2010.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Kadota I, Uehara K, Shinohara H, Nishiyama K. Bacterial Blight of Welsh Onion: A New Disease Caused by Xanthomonas campestris pv. allii pv. nov. 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