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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">10.31367/2079-8725-2023-84-1-29-34</article-id><article-id custom-type="elpub" pub-id-type="custom">zhros-2210</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>Сегрегация коли- чественных признаков у гибрида риса F2 Khao Hlan On × Контакт</article-title><trans-title-group xml:lang="en"><trans-title>Segregation of a number of quantitative traits  in the rice hybrid F2 ‘Khao Hlan On × Kontakt’</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, профессор, главный научный сотрудник  лаборатории селекции и семеноводства риса</p><p>347740, Ростовская обл., г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>Doctor of Agricultural Sciences, professor, main researcher  of the laboratory for rice breeding and seed production</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok street, 3</p></bio><email xlink:type="simple">vniizk30@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3392-4774</contrib-id><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>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат сельскохозяйственных наук, ведущий научный сотрудник лаборатории селекции и семеноводства риса</p><p>347740, Ростовская обл., г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>Candidate of Agricultural Sciences, leading researcher of the laboratory  for rice breeding and seed production</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok street, 3</p></bio><email xlink:type="simple">vniizk30@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6641-878X</contrib-id><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>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории селекции и семеноводства риса</p><p>347740, Ростовская обл., г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>junior researcher of the laboratory for rice breeding and seed production</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok street, 3</p></bio><email xlink:type="simple">vniizk30@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8976-2703</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балюкова</surname><given-names>Э. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Balyukova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>агроном лаборатории селекции и семеноводства риса</p><p>347740, Ростовская обл., г. Зерноград, ул. Научный городок, д. 3</p></bio><bio xml:lang="en"><p>agronomist of the laboratory for rice breeding and seed production</p><p>347740, Rostov region, Zernograd, Nauchny Gorodok street, 3</p></bio><email xlink:type="simple">vniizk30@mail.ru</email><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>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>03</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>29</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Костылев П.И., Краснова Е.В., Аксенов А.В., Балюкова Э.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Костылев П.И., Краснова Е.В., Аксенов А.В., Балюкова Э.С.</copyright-holder><copyright-holder xml:lang="en">Kostylev P.I., Krasnova E.V., Aksenov A.V., Balyukova E.S.</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/2210">https://www.zhros.online/jour/article/view/2210</self-uri><abstract><p>В статье представлены результаты изучения гибридной популяции второго поколения комбинации Khao Hlan On х Контакт. Сорт Khao Hlan On позднеспелый, мелкозерный, быстро растущий, высокорослый, неустойчивый к полеганию, Контакт – скороспелый, среднезерный, низкорослый, устойчивый к полеганию. Цель исследований – анализ наследования основных количественных признаков у гибрида риса F2 Khao Hlan On х Контакт и отбор лучших форм для селекции. В ходе генетического анализа выявлены особенности наследования признаков, оказывающих влияющие на урожайность, отобраны лучшие растения со средней высотой, вертикальными метелками и средними по массе зерновками. Исследования проводили в 2022 г. на полях ОП «Пролетарское» (Ростовская область). По всем изученным признакам установлены моногенные различия между родительскими сортами. По высоте растений частично доминировали меньшие значения признака (hp = –0,22). По длине метелки также наблюдалось частичное отрицательное доминирование этого признака (hp = –0,35). По признаку «количество колосков в метелке» выявлено частичное доминирование меньшей величины признака (hp = –0,19). По массе 1000 зерен установлено частичное отрицательное доминирование (hp = –0,26). Отобраны лучшие по морфотипу формы F2, которые согласно проведенным нами ранее исследованиям отличались оптимальной высотой растений, длиной метелок, числом колосков на них и массой 1000 зерен.</p></abstract><trans-abstract xml:lang="en"><p>The current paper has presented the study results of the hybrid population of the second generation ‘Khao Hlan On × Kontakt’. The variety ‘Khao Hlan On’ is late-maturing, small-grained, fast-growing, of tall height, resistant to lodging, the variety ‘Kontakt’ is early-maturing, medium-grained, of low height, resistant to lodging. The purpose of the study was to analyze the inheritance of the main quantitative traits in the rice hybrid F2 ‘Khao Hlan On × Kontakt’ and select the best forms for breeding. In the course of genetic analysis, there have been determined the features of traits’ inheritance that affect productivity; there have been selected the best plants with an average height, with vertical panicles and mean grain weight. The study was carried out on the fields of the EP “Proletarskoe” (the Rostov Region) in 2022. For all the studied traits, there have been established the monogenic differences between the parental varieties. According to plant height, there was a partial domination of the lower values of the trait (hp = –0.22). According to panicle length, there was a partial negative dominance of the trait (hp = –0.35). According to the trait ‘number of spikelets per panicle’, there was a partial dominance of a smaller value of the trait (hp = –0.19). According to 1000-grain weight, there was a partial negative dominance (hp = –0.26). There have been selected the best morphotype F2 forms, which according to our earlier study, differed in optimal plant height, panicle length, number of spikelets per panicle, and 1000-grain weight.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рис</kwd><kwd>наследование</kwd><kwd>гены</kwd><kwd>количественные признаки</kwd><kwd>сегрегация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rice</kwd><kwd>inheritance</kwd><kwd>genes</kwd><kwd>quantitative traits</kwd><kwd>segregation</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">Мережко А. Ф. Использование менделевских принципов в компьютерном анализе наследования варьирующих признаков // Экологическая генетика культурных растений: Материалы школы молодых ученых РАСХН, ВНИИ риса. Краснодар, 2005. С. 107–117.</mixed-citation><mixed-citation xml:lang="en">Merezhko A. F. 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