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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">vestib</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия биологических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Biological Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-8940</issn><issn pub-type="epub">2524-230X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1029-8940-2021-66-3-333-338</article-id><article-id custom-type="elpub" pub-id-type="custom">vestib-763</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Накопление фотосинтетических пигментов и показатели флуоресценции хлорофилла в листьях Dioscorea alata L. при вегетативном размножении растений на ионообменных субстратах</article-title><trans-title-group xml:lang="en"><trans-title>Accumulation of photosynthetic pigments and indicators of fluorescence of chlorophyll in leaves of Dioscorea alata L. during vegetative reproduction of plants on ion-exchange substrates</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>Карасева</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Karasiova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каpасeва Елена Николаевна - научный сотрудник.</p><p>ул. Академическая, 27, 220072, Минск.</p></bio><bio xml:lang="en"><p>Аlena N. Karasiova - Researcher V.F. Kuprevich Institute of Experimental Botany of the National Academy of Sciences of Belarus.</p><p>27, Akademicheskaya Str, 220072, Minsk.</p></bio><email xlink:type="simple">ledymc_net@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт экспериментальной ботаники имени В.Ф. Купревича НАН Беларуси</institution></aff><aff xml:lang="en"><institution>V.F. Kuprevich Institute of Experimental Botany of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>04</day><month>08</month><year>2021</year></pub-date><volume>66</volume><issue>3</issue><fpage>333</fpage><lpage>338</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Карасева Е.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Карасева Е.Н.</copyright-holder><copyright-holder xml:lang="en">Karasiova A.N.</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://vestibio.belnauka.by/jour/article/view/763">https://vestibio.belnauka.by/jour/article/view/763</self-uri><abstract><p>Изучены содержание фотосинтетических пигментов и флуоресценция хлорофиллов (Хл) в листьях растений Dioscorea alata L., выращенных на модифицированном ионообменном субстрате. Установлено, что в варианте с добавлением в субстрат гидрогеля мелкой фракции в количестве 1 г/л содержание Хл а на 15 % выше по отношению к контролю. Содержание Хл b и каротиноидов по сравнению с контролем различались несущественно. При добавлении гидрогеля в концентрации 0,5 г/л содержание Хл а во всех изученных вариантах было значительно ниже контроля.</p><p>Исходя из исследованных параметров флуоресценции Хл, наиболее благоприятные для продуктивности фотосинтеза условия были в варианте с добавлением с 1 г мелкой фракции и при освещении ДНаТ-400.</p></abstract><trans-abstract xml:lang="en"><p>The content of photosynthetic pigments and fluorescence of chlorophylls in leaves of Dioscorea alata L. plants grown on a modified ion-exchange substrate were studied. It was found that in the variant with the addition of a fine fraction to the hydrogel substrate in an amount of 1 g/l, the Chl а content is 15 % higher than in the control. The content of Chl b and carotenoids in comparison with the control differed insignificantly. When the hydrogel was added at a concentration of 0.5 g/l, the Chl а content in all studied variants was significantly lower than the control.</p><p>Based on the investigated parameters of chlorophyll fluorescence, the most favorable conditions for the productivity of photosynthesis were in the variant with the addition of 1 g of a fine fraction and illumination of DNaT-400.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидрогель</kwd><kwd>ионообменный субстрат</kwd><kwd>фотосинтетические пигменты</kwd><kwd>Dioscorea alata L.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrogel</kwd><kwd>ion exchange substrate</kwd><kwd>photosynthetic pigments</kwd><kwd>Dioscorea alata L.</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">Кузнецов, В. В. Физиология растений : учебник / В. 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