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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2020-343-11-56-59</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-1385</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>РАСТЕНИЕВОДСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PLANT GROWING</subject></subj-group></article-categories><title-group><article-title>Оценка засухоустойчивости образцов риса по изменению урожайности при нехватке влаги</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of dry resistance of rice samples by changing yield with lack of moisture</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костылев</surname><given-names>П. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostylev</surname><given-names>Pavel I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Иванович Костылев, доктор с.-х. наук, профессор, главный научный сотрудник лаборатории селекции и семеноводства риса</p><p>347740, г. Зерноград, Ростовской обл., ул. Научный гор., 3</p></bio><bio xml:lang="en"><p>Pavel I. Kostylev, Doctor of agricultural Sciences, Professor, Chief researcher of the laboratory of breeding and seed production of rice </p><p>3, st. Scientific city, Zernograd, Rostov region, 347740</p></bio><email xlink:type="simple">p-kostylev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краснова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasnova</surname><given-names>Elena V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Викторовна Краснова, кандидат с.-х. наук, ведущий научный сотрудник лаборатории селекции и семеноводства риса</p><p>347740, г. Зерноград, Ростовской обл., ул. Научный гор., 3</p></bio><bio xml:lang="en"><p>Elena V. Krasnova, Candidate of agricultural Sciences, Leading researcher of the laboratory of breeding and seed production of rice </p><p>3, st. Scientific city, Zernograd, Rostov region, 347740</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аксенов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aksenov</surname><given-names>Alexander V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Владимирович Аксенов, агроном лаборатории селекции и семеноводства риса</p><p>347740, г. Зерноград, Ростовской обл., ул. Научный гор., 3</p></bio><bio xml:lang="en"><p>Alexander V. Aksenov, Agronomist of the laboratory of breeding and seed production of rice </p><p>3, st. Scientific city, Zernograd, Rostov region, 347740</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «АНЦ «Донской»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “AЫC” Donskoy “</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2021</year></pub-date><volume>0</volume><issue>11-12</issue><fpage>56</fpage><lpage>59</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Костылев П.И., Краснова Е.В., Аксенов А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Костылев П.И., Краснова Е.В., Аксенов А.В.</copyright-holder><copyright-holder xml:lang="en">Kostylev P.I., Krasnova E.V., Aksenov A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vetpress.ru/jour/article/view/1385">https://www.vetpress.ru/jour/article/view/1385</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Среди многочисленных абиотических стрессов засуха или дефицит воды считаются наиболее важными ограничениями в производстве риса во многих районах его выращивания. Цель исследований — изучение коллекционных, гибридных и селекционных образцов риса на устойчивость к длительному пересыханию почвы и воздушной засухе, отбор засухоустойчивых форм для создания сортов нового типа. Материалы и методы. Объектом исследования стали 65 сортов и образцов суходольного риса в лаборатории селекции и семеноводства риса АНЦ «Донской» на базе ОП «Пролетарское» Ростовской области, которые выращивали на засушливом и нормальном фонах орошения.</p></sec><sec><title>Результаты</title><p>Результаты. Установлено, что растения в нормальных и засушливых условиях формировались по-разному, и урожайность зерна при периодическом орошении составила в среднем 71,3% к норме. Выявлены сорта Контакт, Золотые всходы, Маловодотребовательный, линии ЗУЛК 6 и ЗУЛК 15, соотношение опыта к контролю (О/К) у которых составило от 106,9 до 138,0%. Отмечено удлинение времени до цветения у всех образцов, но в различной степени, от 4,9 до 25,7%. Максимальную урожайность в засушливых условиях сформировали сорта Боярин (4,43 т/га), Контакт (4,53 т/га), Золотые всходы (4,60 т/га) и Суходол (4,60 т/га).</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. Among the many abiotic stresses, drought or water scarcity are considered the most important constraints on rice production in many areas of rice production. The purpose of the research is to study collection, hybrid and breeding rice samples for resistance to prolonged drying out of the soil and air drought, selection of droughtresistant forms for creating varieties of a new type. Materials and methods. The object of the study were 65 varieties and samples of dry land rice in the laboratory of rice selection and seed production of the ARC “Donskoy” on the basis of the OP “Proletarskoye” of the Rostov region, which were grown on arid and normal irrigation background.</p></sec><sec><title>Results</title><p>Results. It was found that plants under normal and dry conditions formed differently, and the grain yield under periodic irrigation averaged 71.3% of the norm. The varieties Kontakt, Zolotye vshody, Malovodrebovatelny, lines ZULK 6 and ZULK 15 were identified, the ratio of experience to control (O/C) in which ranged from 106.9 to 138.0%. Elongation of time to flowering was noted in all samples, but to varying degrees, from 4.9 to 25.7%. The maximum yield in dry conditions was formed by the varieties Boyarin (4.43 t / ha), Kontact (4.53 t / ha), Zolotye vshody (4.60 t / ha) and Sukhodol (4.60 t / ha).</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рис</kwd><kwd>сорт</kwd><kwd>источник</kwd><kwd>суходол</kwd><kwd>засухоустойчивость</kwd><kwd>периодический полив</kwd><kwd>урожайность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rice</kwd><kwd>variety</kwd><kwd>source</kwd><kwd>dry land</kwd><kwd>drought resistance</kwd><kwd>periodic irrigation</kwd><kwd>yield</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Mittler R., Blumwald E. Genetic engineering for modern agriculture: challenges and perspectives. Annu Rev Plant Biol. 2010;(61):443–462.</mixed-citation><mixed-citation xml:lang="en">Mittler R., Blumwald E. Genetic engineering for modern agriculture: challenges and perspectives. 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