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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">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2022-25-3-62-72</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-638</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>РАДИОФОТОНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROWAVE PHOTONICS</subject></subj-group></article-categories><title-group><article-title>Определение оптимального спектрального состава излучения светодиодной фитолампы для стимуляции развития семян моркови и томата</article-title><trans-title-group xml:lang="en"><trans-title>Optimal Spectral Radiation Composition of a LED Phytolapm for Stimulating Carrot and Tomato Seed Development</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>Губина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gubina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Губина Анастасия Анатольевна - бакалавр по направлению "Электроника и наноэлектроника" (2020), студент магистратуры 2-го года обучения.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Anastasia A. Gubina - Bachelor in "Electronics and Nanoelectronics" (2020), 2-year Master's student of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">gubina.anastasia2010@yandex.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>Левин</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levin</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Левин Евгений Витальевич - бакалавр по направлению "Электроника и наноэлектроника" (2020), студент магистратуры 1-го года обучения.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Evgeniy V. Levin - Bachelor in "Electronics and Nanoelectronics" (2020), 1st year Master's student of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">zhenya081099@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>Романович</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanovich</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Романович Мария Михайловна - магистр по направлению "Электроника и наноэлектроника" (2019), аспирант 2-го года обучения.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Maria M. Romanovich - Master in "Electronics and Nanoelectronics" (2020), 2nd year Postgraduate Student of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">mmromanovich@etu.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>Дегтерев</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Degterev</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дегтерев Александр Эдуардович - магистр по направлению "Электроника и наноэлектроника" (2020), аспирант 2-го года обучения.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Alexander E. Degterev - Master in "Electronics and Nanoelectronics" (2020), 2nd year Postgraduate Student of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">aedegterev@etu.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>Патоков</surname><given-names>Н. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Patokov</surname><given-names>N. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Патоков Никита Олегович - исследователь, преподаватель-исследователь по направлению "Фотоника, приборостроение, оптические и биотехнические системы и технологии" (2021).</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Nikita O. Patokov - Researcher, teacher-researcher in the field of "Photonics, instrumentation, optical and biotechnical systems and technologies" (2021).</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">patocov@mail.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>Ламкин</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lamkin</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ламкин Иван Анатольевич - кандидат технических наук (2015), доцент кафедры фотоники.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Ivan A. Lamkin - Cand. Sci. (Eng.) (2015), Associate Professor at the Department of Photonics of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">ialamkin@etu.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>Тарасов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тарасов Сергей Анатольевич - доктор технических наук (2016), заведующий кафедрой фотоники.</p><p>ул. Профессора Попова, д. 5 Ф, Санкт-Петербург, 197022.</p></bio><bio xml:lang="en"><p>Sergey A. Tarasov - Dr Sci. (Eng.) (2019), Head of the Department of Photonics of Saint Petersburg Electrotechnical University.</p><p>5 F, Professor Popov St., St Petersburg 197022.</p></bio><email xlink:type="simple">satarasov@etu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В.И. Ульянова (Ленина)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2022</year></pub-date><volume>25</volume><issue>3</issue><fpage>62</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Губина А.А., Левин Е.В., Романович М.М., Дегтерев А.Э., Патоков Н.О., Ламкин И.А., Тарасов С.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Губина А.А., Левин Е.В., Романович М.М., Дегтерев А.Э., Патоков Н.О., Ламкин И.А., Тарасов С.А.</copyright-holder><copyright-holder xml:lang="en">Gubina A.A., Levin E.V., Romanovich M.M., Degterev A.E., Patokov N.O., Lamkin I.A., Tarasov S.A.</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://re.eltech.ru/jour/article/view/638">https://re.eltech.ru/jour/article/view/638</self-uri><abstract><sec><title>Введение</title><p>Введение. В настоящее время светодиодное (СИД) освещение стало преобладающим во многих сферах деятельности человека, в том числе в сельском хозяйстве. С каждым годом все большей проблемой становится обеспечение населения достаточным количеством качественной продукции вследствие текущей экологической обстановки и активного роста городского населения. Для решения данной проблемы требуется разработка энергоэффективных оптических систем с целью создания оптимальных условий освещенности для ускорения роста различных типов растений и повышения качества продукции в автономных агропромышленных комплексах.</p></sec><sec><title>Цель работы</title><p>Цель работы. Определение оптимального спектрального состава излучения фитолампы, состоящей из СИД на основе AlGalnP (660 и 730 нм), на основе InGaN (440 нм) и "фитосветодиодов" (400 . .800 нм), для стимуляции роста и развития ростков томатов и моркови в стадии проращивания. Расчет оптической мощности СИД и плотности фотосинтетического фотонного потока (photosynthetic photon flux density, PPFD) на ее основе. Материалы и методы. Проведен ряд экспериментов, связанных с исследованием влияния различного качества и количества излучения видимого диапазона на параметры развития семян моркови и томатов, к которым относятся энергия прорастания, появление семядольных и первичных листьев, всхожесть семян, средняя длина гипокотиля и корня; выявление оптимального спектрального состава и мощности излучения для повышения скорости роста растений.</p></sec><sec><title>Результаты</title><p>Результаты. Показано, что досветка излучением 660 нм ростков томатов в стадии проращивания положительно влияет на всхожесть, среднюю длину ростка и корневое развитие. Наилучшие результаты всхожести и развития моркови достигаются при облучении светом коротковолнового диапазона (PPFD 243 мкмоль∙с-1 -м-2), для усиления вегетативного развития моркови подходит облучение ~170 мкмоль с-1 -м-2синего света и 86 мкмоль с-1 -м-2 красного.</p></sec><sec><title>Заключение</title><p>Заключение. Созданные программы освещения позволят варьировать спектральный состав излучения и PPFD на разных этапах роста и развития культур, тем самым увеличивая урожайность и снижая энергозатраты. В перспективе данная технология может быть использована в космосе, так как высокая энергоэффективность в данном сегменте является принципиальной.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Light-emitting diode (LED) irradiation is widely used in various spheres of human activity, including agriculture. Due to the growing urban population and aggravating environmental situation, the problem of high-quality food provision is increasingly attracting research attention. In this context, it is important to develop energy-efficient optical systems for ensuring optimal irradiation conditions for accelerating the growth of various types of plants and improving the quality of products in autonomous agro-industrial complexes.</p></sec><sec><title>Aim</title><p>Aim. Determination of an optimal spectral radiation composition of a phytolamp consisting of LEDs based on AlGalnP (660 and 730 nm) and InGaN (440 nm), as well as phyto-LEDs (400. _ .800 nm), to stimulate the growth and development of tomato and carrot sprouts at the germination stage. Calculation of the LED optical power and photosynthetic photon flux density (PPFD).</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Experiments were carried out to study the influence of visible radiation of different quality and quantity on the development parameters of carrot and tomato seeds, including germination energy, the appearance of cotyledon and primary leaves, seed germination, average hypocotyl and root length. Optimal spectral composition and radiation power parameters ensuring effective growth of plants were determined.</p></sec><sec><title>Results</title><p>Results. Additional 660-nm irradiation of tomato sprouts at the germination stage was shown to exhibit a positive effect on germination, average sprout length and root development. The best results of carrot germination and development were achieved when irradiated with short-wavelength light (PPFD 243 µmol∙s–1∙m–2). Irradiation of ~ 170 µmol∙s–1∙m–2 blue and 86 µmol∙s–1∙m–2 red light was found to be effective for enhancing carrot cultivation.</p></sec><sec><title>Conclusion</title><p>Conclusion. The developed irradiation schemes can be used to vary the spectral radiation composition and PPFD at different stages of crop growth and development, thereby increasing yields and reducing energy costs. In the future, this technology can be used in space research, where high energy efficiency is fundamental.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>светодиод</kwd><kwd>фотосинтез</kwd><kwd>фотоморфогенез</kwd><kwd>хлорофилл</kwd><kwd>плотность фотосинтетического потока фотонов</kwd><kwd>спектральная характеристика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>LED</kwd><kwd>photosynthesis</kwd><kwd>photomorphogenesis</kwd><kwd>chlorophyll</kwd><kwd>photosynthetic photon flux density</kwd><kwd>spectral characteristic</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">Spalding E. P., Folta K. M. 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