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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">10.32634/0869-8155-2024-384-7-119-124</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3175</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>АГРОНОМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRONOMY</subject></subj-group></article-categories><title-group><article-title>Влияние провокационных условий повышенного кислого фона почвы на морфологические признаки растений льна-долгунца (Linum usitatissimum L.)</article-title><trans-title-group xml:lang="en"><trans-title>The influence of provocative conditions of increased acidity of the soil on the morphological characteristics of fiber flax plants (Linum usitatissimum L.)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5230-0580</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зотова</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zotova</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вероника Сергеевна Зотова - аспирант, младший научный сотрудник </p><p>Комсомольский пр-т, 17/56, Тверь, 172002</p></bio><bio xml:lang="en"><p>Veronica Sergeevna Zotova - Postgraduate Student, Junior Researche </p><p>17/56 Komsomolsky Рrospect, Tver, 172002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4137-9622</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пролётова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Proletova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Викторовна Пролётова - старший научный сотрудник, ведущий научный сотрудник, кандидат биологических наук </p><p>Комсомольский пр-т, 17/56, Тверь, 172002</p></bio><bio xml:lang="en"><p>Natalia Viktorovna Proletova - Senior Researcher, Leading Researcher, Candidate of Biological Sciences </p><p>17/56 Komsomolsky Рrospect, Tver, 172002</p></bio><email xlink:type="simple">science.trk@fnclk.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>Конова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Konova</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аминат Мсостовна Конова - ведущий научный сотрудник, кандидат сельскохозяйственных наук </p><p>Комсомольский пр-т, 17/56, Тверь, 172002</p></bio><bio xml:lang="en"><p>Aminat Msostovna Konova - Leading Researcher, Candidate of Agricultural Sciences </p><p>17/56 Komsomolsky Рrospect, Tver, 172002</p></bio><email xlink:type="simple">science.trk@fnclk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный научный центр лубяных культур</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Center of Вast Сrops</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>07</month><year>2024</year></pub-date><volume>0</volume><issue>7</issue><fpage>119</fpage><lpage>124</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зотова В.С., Пролётова Н.В., Конова А.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Зотова В.С., Пролётова Н.В., Конова А.М.</copyright-holder><copyright-holder xml:lang="en">Zotova V.S., Proletova N.V., Konova A.M.</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/3175">https://www.vetpress.ru/jour/article/view/3175</self-uri><abstract><p>Актуальность. Уровень кислотности почв в Российской Федерации за последние десятилетия значительно повысился, а повышенная кислотность почвы — одна из причин низкой реализации в производственных условиях биологической продуктивности различных культур, включая лен-долгунец. При выращивании льна-долгунца на почвах с сильнокислой (рНKCl 4,5 и ниже) и нейтральной (рНKCl свыше 6,0) реакцией почвенного раствора существенно снижается урожайность льноволокна и льносемян. Методы. Исследования проводились в полевых условиях провокационного питомника в соответствии с методическими указаниями «Селекция и первичное семеноводство льна-долгунца» и «Селекция льна-долгунца», а также методикой, основанной на внесении необходимого количества извести и коллоидной серы, и патента «Способ определения устойчивости генотипов льна к изменению кислотности почвенного раствора». Исходный материал — сорта льна-долгунца Импульс, Феникс, Лидер, С 108, Союз. Подготовка почвы состояла в проведении зяблевой вспашки, внесении минеральных удобрений в форме азофоски с нормой 1,5 ц/га, бороновании и предпосевной культивации. Способ посева — рядовой, площадь питания одного растения — 3,75 см2. Общая площадь эксперимента составляла 60 м2 в трехкратной повторности. В качестве контрольного варианта использовался среднекислый фон с pHKCL 4,6–5,0.Результаты. Создан провокационный фон и определена кислотоустойчивость сортов льна-долгунца Импульс, Феникс, Лидер, С 108, Союз для сильнокислого и слабокислого фона, сильнокислого и среднекислого фона. Выявлено, что все исследуемые сорта льна-долгунца проявили устойчивость к повышенной кислотности почвы, сохраняя при этом высокие показатели продуктивности по сравнению с сортом-стандартом Лидер. Наиболее высокую устойчивость относительно других сортов проявили сорта Смолич, С 108, Импульс.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. The level of soil acidity in the Russian Federation has increased significantly over the past decades, and increased soil acidity is one of the reasons for the low realization in production conditions of the biological productivity of various crops, including fiber flax. When growing fiber flax on soils with a strongly acidic (pHKCl 4.5 and below) and neutral (pHKCl over 6.0) soil solution reaction, the yield of flax fiber and flax seeds is significantly reduced. Methods. The studies were carried out in the field conditions of a provocative nursery in accordance with the methodological instructions “Selection and primary seed production of fiber flax” and “Selection of fiber flax”, as well as a technique based on the addition of the required amount of lime and colloidal sulfur and the patent “Method for determining the resistance of flax genotypes to a change in the acidity of the soil solution.” The source material is fiber flax varieties Impulse, Phoenix, Leader, S 108, Soyuz. Soil preparation consisted of autumn plowing, application of mineral fertilizers in the form of azophosphate at a rate of 1.5 c/ha, harrowing and pre-sowing cultivation. The sowing method is ordinary, with a feeding area of 3.75 cm2 per plant. The total area of the experiment was 60 m2 in triplicate. A moderately acidic background with pHKCL 4.6–5.0 was used as a control option. Results. A provocative background was created and the acid resistance of fiber flax varieties was determined — Impulse, Phoenix, Leader, S 108, Soyuz for strongly acidic and weakly acidic backgrounds, strongly acidic and moderately acidic backgrounds. It was revealed that all studied varieties of fiber flax showed resistance to increased soil acidity, while maintaining high productivity indicators compared to the standard variety Leader. The highest resistance, relative to other varieties, was demonstrated by the varieties Smolich, S 108, and Impuls.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лен-долгунец</kwd><kwd>устойчивость</kwd><kwd>кислотность</kwd><kwd>кислотоустойчивость</kwd><kwd>продуктивность</kwd><kwd>провокационный фон</kwd><kwd>известь</kwd><kwd>коллоидная сера</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fiber flax</kwd><kwd>stability</kwd><kwd>acidity</kwd><kwd>acid resistance</kwd><kwd>productivity</kwd><kwd>provocative background</kwd><kwd>lime</kwd><kwd>colloidal sulfur</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены в рамках государственного задания Министерства науки и высшего образования ФГБНУ ФНЦ ЛК по теме № FGSS 2024-0004.</funding-statement><funding-statement xml:lang="en">The research was carried out within the framework of the State task of the Ministry of Science and Higher Education of the Federal Scientific Center of Вast Сrops on the topic No. FGSS 2024-0004.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kochian L.V., Piñeros M.A., Liu J., Magalhaes J.V. 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