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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">zhros</journal-id><journal-title-group><journal-title xml:lang="ru">Зерновое хозяйство России</journal-title><trans-title-group xml:lang="en"><trans-title>Grain Economy of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-8725</issn><issn pub-type="epub">2079-8733</issn><publisher><publisher-name>Федеральное государственное бюджетное научное учреждение "Аграрный научный центр "Донской»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31367/2079-8725-2024-90-1-61-69</article-id><article-id custom-type="elpub" pub-id-type="custom">zhros-2584</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>СЕЛЕКЦИЯ И СЕМЕНОВОДСТВО СЕЛЬСКОХОЗЯЙСТВЕННЫХ РАСТЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PLANT BREEDING AND SEED PRODUCTION OF AGRICULTURAL CROPS</subject></subj-group></article-categories><title-group><article-title>Проводящая система листьев риса в зависимости от уровня плоидности</article-title><trans-title-group xml:lang="en"><trans-title>Vascular system of rice leaves depending on ploidy level</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4371-6848</contrib-id><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>P. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор сельскохозяйственных наук, главный научный сотрудник лаборатории селекции и семеноводства риса</p><p>347740, Ростовская область, г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>Doctor of Agricultural Sciences, senior researcher of the laboratory for rice breeding and sed production</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok, 3</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/0000-0002-6268-7915</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черпакова</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherpakova</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>агроном лаборатории клеточной селекции</p><p>347740, Ростовская область, г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>agronomist of the laboratory for cell breeding</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok, 3</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/0000-0001-6198-6270</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яновская</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yanovskaya</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>агроном лаборатории клеточной селекции</p><p>347740, Ростовская область, г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>agronomist of the laboratory for cell breeding</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok, 3</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Аграрный научный центр «Донской»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSBSI Agricultural Research Center “Donskoy”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>03</month><year>2024</year></pub-date><volume>16</volume><issue>1</issue><fpage>61</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Костылев П.И., Черпакова Е.Ю., Яновская Н.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Костылев П.И., Черпакова Е.Ю., Яновская Н.В.</copyright-holder><copyright-holder xml:lang="en">Kostylev P.I., Cherpakova E.Y., Yanovskaya N.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.zhros.online/jour/article/view/2584">https://www.zhros.online/jour/article/view/2584</self-uri><abstract><p>В статье приводятся данные по изучению проводящей системы флаговых листьев растений риса, выращенных в условиях теплицы в период 2022–2023 годов. Объектами исследования были 24 образца риса, созданные в ФГБНУ «АНЦ «Донской» методом андрогенеза и культуры клеток. Целью этой работы являлось определение степени развития проводящей системы флаговых листьев растений-регенерантов риса с различным уровнем плоидности (1n, 2n, 4n). При изучении проводящей системы листьев растений (количество и площадь пучков) было установлено, что у гаплоидных растений проводящие пучки были меньше по сравнению с дии тетраплоидными образцами. Средний диаметр пучка имел размеры 59,5, 69,3 и 75,3 мкм, площадь одного пучка – 2815,6, 3827,2 и 4540,5 мкм² соответственно. В листьях образцов риса с увеличением уровня плоидности формируется большее количество мелких и крупных проводящих пучков. У гаплоидов их количество составило 36–44, у диплоидов – 40–52, у тетраплоидов – 52–60 шт. Среднее количество пучков было 40,3, 46,6 и 55,2 шт. соответственно. Рисунок жилкования индивидуален для каждого образца. Между одиночными крупными пучками размещаются от одного до семи мелких жилок, чаще всего 4–6 шт. Таким образом, образцы с различным уровнем плоидности отличаются по анатомическому строению листьев, что в конечном счете влияет на их морфологию и продуктивность.</p></abstract><trans-abstract xml:lang="en"><p>The current paper has provided data on the study of the vascular system of flag leaves of rice plants grown in a greenhouse in the period 2022–2023. The objects of the study were 24 rice samples developed at the FSBSI “ARC “Donskoy” using the method of androgenesis and cell culture. The purpose of the work was to determine the degree of development of the vascular system of flag leaves of regenerated rice plants with different ploidy levels (1n, 2n, 4n). When studying the vascular system of plant leaves (the number and area of bundles), it was found that haploid plants had smaller vascular bundles compared to diand tetraploid samples. The average beam diameter had dimensions of 59.5, 69.3 and 75.3 µm, the area of one beam was 2815.6, 3827.2 and 4540.5 µm², respectively. In the leaves of rice samples, a larger number of small and large vascular bundles have been formed with increasing ploidy level. Their number was 36–44 in haploids, 40–52in diploids, 52–60 in tetraploids. The average number of bundles was 40.3, 46.6 and 55.2, respectively. The venation pattern was individual for each sample. Between single large bundles there are from one to seven small veins, most often 4–6 pieces. Thus, samples with different ploidy levels differ in the anatomical structure of the leaves, which ultimately affects their morphology and productivity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рис</kwd><kwd>сорт</kwd><kwd>образец</kwd><kwd>проводящая система</kwd><kwd>лист</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rice</kwd><kwd>variety</kwd><kwd>sample</kwd><kwd>vascular system</kwd><kwd>leaf</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">Жайлыбай К.Н., Медеуова Г.Ж. Формирование анатомической структуры вегетативных органов риса в зависимости от агроэкологических факторов // Успехи современного естествознания. 2014. № 12–2. С. 25–32.</mixed-citation><mixed-citation xml:lang="en">Zhailybai K.N., Medeuova G.Zh. 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