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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">scbook</journal-id><journal-title-group><journal-title xml:lang="ru">Биология растений и садоводство: теория, инновации</journal-title><trans-title-group xml:lang="en"><trans-title>Plant Biology and Horticulture: theory, innovation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2712-7788</issn><publisher><publisher-name>Federal State Funded Institution of Science “The Labour Red Banner Order Nikitsky Botanical Gardens – National scientific Center of the RAS”</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">scbook-855</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>ФИЗИОЛОГИЯ И БИОХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physiology and Biochemistry</subject></subj-group></article-categories><title-group><article-title>Влияние гидротермического стресса на функциональное состояние фотосинтетического аппарата у видов и сортов рода Rosa L.</article-title><trans-title-group xml:lang="en"><trans-title>The influence of hydrothermal stress on the functional state of the photosynthetic apparatus in species and cultivars of the genus Rosa L. resistance</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>Губанова</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Gubanova</surname><given-names>T. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Борисовна Губанова</p><p>298648; спуск Никитский, 52; Республика Крым; Ялта; Никита</p></bio><bio xml:lang="en"><p>298648; Nikitsky descent, 52; Republic of Crimea; Yalta; Nikita</p></bio><email xlink:type="simple">gubanova-65@list.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>Плугатарь</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Plugatar</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлана Алексеевна Плугатарь</p><p>298676; Дворцовое шоссе, 18; Алупка</p></bio><bio xml:lang="en"><p>298676; 18 Dvortsovoe Shosse; Alupka</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Titov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Владиславович Титов</p><p>298648; спуск Никитский, 52; Республика Крым; Ялта; Никита</p></bio><bio xml:lang="en"><p>298648; Nikitsky descent, 52; Republic of Crimea; Yalta; Nikita</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Никитский ботанический сад – Национальный научный центр<country>Россия</country></aff><aff xml:lang="en">Nikitsky Botanical Garden – National Scientific Center<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Государственное автономное учреждение культуры Республики Крым «Алупкинский дворцово-парковый музей-заповедник»<country>Россия</country></aff><aff xml:lang="en">State Autonomous Institution of Culture of the Republic of Crimea Alupka Palace and Park Museum-Reserve<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>22</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>4 (177)</issue><fpage>86</fpage><lpage>96</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Губанова Т.Б., Плугатарь С.А., Титов В.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Губанова Т.Б., Плугатарь С.А., Титов В.В.</copyright-holder><copyright-holder xml:lang="en">Gubanova T.B., Plugatar S.A., Titov V.V.</copyright-holder><license 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://scbook.elpub.ru/jour/article/view/855">https://scbook.elpub.ru/jour/article/view/855</self-uri><abstract><p>   В условиях аридизации климата актуальной задачей является выявление устойчивых декоративных культур.</p><p>   Цель работы – оценка реакции фотосинтетического аппарата садовых роз на гидротермический стресс для выявления информативных параметров диагностики.</p><p>   Методом ОJIP-теста изучены изменения у шести генотипов при водном дефиците (22-25 %), вызванном комбинациями температуры (40 °C) и влажности (25 % и 70 %). Показано, что ответ на стресс носит как видо-(сорто-) специфичный характер, так и связан с условиями стрессового воздействия. На основе анализа кинетики флуоресценции и расчетных параметров JIP-теста выделены наиболее чувствительные (Rosa roxburhii Tratt.) и устойчивые (Rosa × odorata (Andrews) Sweet., Rosa lucieae Franch. &amp; Rochebr. ex Crép., ‘Солнечная Долина’) генотипы. Установлено, что низкая влажность воздуха сильнее повреждает кислород-выделяющий комплекс, а высокая – нарушает электронный транспорт. Индекс ABS/RC является высокоинформативным для оценки устойчивости.</p></abstract><trans-abstract xml:lang="en"><p>   The identification of stress-resistant ornamental crops is an urgent task in the context of climate aridization.</p><p>   The main objective of this work was to evaluate the response of the photosynthetic apparatus in garden roses to hydrothermal stress in order to identify informative diagnostic parameters.</p><p>   Using the OJIP-test method, changes in six genotypes were studied under water deficit (22-25 %) induced by combinations of air temperature (40°C) and humidity (25 % and 70 %). It was shown that the response to stress is specific for different species and cultivars and is also related to the conditions of stress exposure. Based on the analysis of fluorescence kinetics and calculated JIP-test parameters, the most sensitive (Rosa roxburhii Tratt.) and resistant (Rosa × odorata (Andrews) Sweet., Rosa lucieae Franch. &amp; Rochebr. ex Crép., ‘Solnechnaya Dolina’) genotypes were identified. It was found that low air humidity causes more significant damage to the oxygen-evolving complex, while high humidity primarily disrupts electron transport. The ABS/RC index was established to be a highly informative indicator for assessing stress resistance.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Rosa L.</kwd><kwd>фотосинтез</kwd><kwd>флуоресценция хлорофилла</kwd><kwd>гидротермический стресс</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Rosa L.</kwd><kwd>photosynthesis</kwd><kwd>chlorophyll fluorescenc</kwd><kwd>hydrothermal stress</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках тем госзадания ФГБУН «НБС-ННЦ» № FNNS-2025-0002 и (FNNS-2025-0004)</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The work was carried out within the framework of the state assignment of the Federal State Budgetary Institution of Science "NBS-NNTS" No. FNNS-2025-0002 and (FNNS-2025-0004)</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">Гольцев В.Н., Каладжи М.Х., Кузманова М.А., Аллахвердиев С. 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