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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">ovoshchi</journal-id><journal-title-group><journal-title xml:lang="ru">Овощи России</journal-title><trans-title-group xml:lang="en"><trans-title>Vegetable crops of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9146</issn><issn pub-type="epub">2618-7132</issn><publisher><publisher-name>Федеральный научный центр овощеводства</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18619/2072-9146-2020-6-47-50</article-id><article-id custom-type="elpub" pub-id-type="custom">ovoshchi-1184</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>BREEDING AND SEED PRODUCTION OF AGRICULTURAL CROPS</subject></subj-group></article-categories><title-group><article-title>Вариабельность и наследуемость устойчивости перспективных линий томата к высоким температурам</article-title><trans-title-group xml:lang="en"><trans-title>Variability and heritage of the reaction of promising tomato lines to high temperatures</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>Михня</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mihnea</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михня Надежда Ильинична – доктор биологических наук, главный научный сотрудник лаб. прикладной генетики </p><p>MD-2002, Кишинев, ул. Пэдурий, 20</p></bio><bio xml:lang="en"><p>Nadejda I. Mihnea – Doc.Sci.(Biology), professor, Leader Researcher of laboratory applied genetics </p><p>20, Padurii St., Chisinau, MD-2002</p></bio><email xlink:type="simple">mihneanadea@yahoo.com</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>Лупашку</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lupashku</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лупашку Галина Алексеевна – доктор биологических наук, профессор, зав. лаб. прикладной генетики </p><p>MD-2002, Кишинев, ул. Пэдурий, 20</p></bio><bio xml:lang="en"><p>Galina A. Lupashku – Doc.Sci.(Biology), professor, head of laboratory applied genetics </p><p>20, Padurii St., Chisinau, MD-2002</p></bio><email xlink:type="simple">galinalupascu51@gmail.com</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>Кристя</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Cristea</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кристя Николай Иванович – младший научный сотрудник </p><p>MD-2002, Кишинев, ул. Пэдурий, 20</p></bio><bio xml:lang="en"><p>Nicolai I. Cristea – Junior Researcher </p><p>20, Padurii St., Chisinau, MD-2002</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>Кошалык</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Cosalic</surname><given-names>C. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кошалык Кристина Валерьевна – младший научный сотрудник </p><p>MD-2002, Кишинев, ул. Пэдурий, 20</p></bio><bio xml:lang="en"><p>Cristina V. Cosalic – Junior Researcher </p><p>20, Padurii St., Chisinau, MD-2002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт генетики, физиологии и защиты растений</institution><country>Молдова</country></aff><aff xml:lang="en"><institution>Institute of Genetics, Physiology and Plant Protection</institution><country>Moldova, Republic of</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2020</year></pub-date><volume>0</volume><issue>6</issue><fpage>47</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Михня Н.И., Лупашку Г.А., Кристя Н.И., Кошалык К.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Михня Н.И., Лупашку Г.А., Кристя Н.И., Кошалык К.В.</copyright-holder><copyright-holder xml:lang="en">Mihnea N.I., Lupashku G.A., Cristea N.I., Cosalic C.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.vegetables.su/jour/article/view/1184">https://www.vegetables.su/jour/article/view/1184</self-uri><abstract><p>Актуальность. В Республике Молдова в последние годы во время цветения томата температура воздуха достигает 35°С и выше, что значительно снижает завязываемость плодов, урожайность и качество продукции, поэтому особое значение приобретает создание сортов, устойчивых к температурному стрессу. Актуальность проведенных исследований обусловлена необходимостью идентификации генотипов томата, устойчивых к высоким температурам, выявления генетической природы вариабельности и степени наследуемости органов роста томата при взаимодействии с разными температурными режимами. Цель исследований – определить влияние стрессовых температур на органы роста и развития растений томата на раннем этапе онтогенеза и на cтепень генетической, фенотипической изменчивости и наследуемости признаков. Материалы и методы. Материалом для исследований служили 5 перспективных линий томата с высокими хозяйственно ценными признаками. В качестве стандарта использовали районированный сорт Mary Gratefully. Были использованы четыре уровня температур – оптимальная (25°С) и стрессовые (38, 40 и 42°С). Измеряли длину зародышевого корня и стебелька 7- дневных растений. Опыт закладывали в 3-х повторностях. Были исследованы: генетическая и фенотипическая варианса, коэффициент наследуемости, фенотипический и генотипический коэффициенты вариации, генетический прогресс. Данные была обработаны в пакете программ STATISTICA 7. Результаты. В результате проведенных исследований выявлена существенная дифференциация реакции генотипов томата на температурный стресс. Установлено значительное влияние температуры на генетические и фенотипические вариансы признаков роста и развития растений томата, наследуемость в широком смысле, генотипический и фенотипический коэффициент вариации, генетический прогресс. Большой интерес для дальнейших исследований представляют генотипы Mary Gratefully, L 304, L 306, обладающие высокой устойчивостью по изученным признакам.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. In the Republic of Moldova in recent years, during tomato flowering, air temperature reaches 35°С and higher, which significantly reduces fruit set, yield and product quality, therefore, the creation of varieties resistant to temperature stress is of particular importance. The relevance of the studies is due to the need to identify tomato genotypes resistant to high temperatures, to identify the genetic nature of the variability and degree of inheritance of tomato growth organs when interacting with different temperature conditions. The purpose of the research is to determine the effect of stress temperatures on the organs of growth and development of tomato plants at an early stage of ontogenesis, the degree of genetic, phenotypic variation and inheritance of characters. Materials and methods. The research material was 5 promising lines of tomato with high economically valuable traits. As a standard, a omologated variety Mary Gratefully was used. Four temperature levels were used – optimal (25°С) and stress (38, 40 and 42°С). The length of the germinal root and stem of 7-day-old plants was measured. The experiment was made in 3 replicates. The following were studied: genetic and phenotypic variants, heritability coefficient, phenotypic and genotypic coefficients of variation, genetic progress. The data were processed in the STATISTICA 7 software package. Results. As a result of the studies, a significant differentiation of the reaction of tomato genotypes to temperature stress was revealed. A significant effect of temperature on the genetic and phenotypic varieties of signs of growth and development of tomato plants, heritability in the broad sense, genotypic and phenotypic coefficient of variation, and genetic progress have been established. Of a great interest for further studies are the Mary Gratefully, L 304, L 306 genotypes, which are highly resistant to the studied traits.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>томат</kwd><kwd>температура</kwd><kwd>устойчивость</kwd><kwd>вариабельность</kwd><kwd>наследуемость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tomato</kwd><kwd>temperature</kwd><kwd>stability</kwd><kwd>variability</kwd><kwd>heritability</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">Ивакин А. Определение жаростойкости овощных культур по ростовой реакции проростков после прогревания их при высокой температуре (томаты). Методические указания. Ленинград, 1979. 9 с. [Ivakin A. Determination of heat resistance of vegetable crops by the growth reaction of seedlings after heating them at high temperature (tomatoes). Methodical instructions. Leningrad, 1979. 9 p. 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