vestibИзвестия Национальной академии наук Беларуси. Серия биологических наукProceedings of the National Academy of Sciences of Belarus, Biological Series1029-89402524-230XThe Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1029-8940-2026-71-4-292-299vestib-1032Research ArticleСтатьиФизиолого-биохимические особенности роста проростков сахарной свеклы при предпосевной обработке семян брассиностероидамиPhysiological and biochemical features of sugar beet seedling growth under pre-sowing seed treatment with brassinosteroidsБоровикА. А.BorovikA. A.

Боровик Анастасия Александровна – мл. науч. сотрудник

ул. Академическая, 27, 220072, г. Минск

Anastasiya A. Borovik – Junior Researcher 

27, Akademicheskaya Str., 220072, Minsk

nastyaminskaya37@gmail.comНебышинецП. А.NebyshinetsP. A.

Небышинец Полина Алексеевна – науч. сотрудник 

ул. Академическая, 27, 220072, г. Минск

Polina A. Nebyshinets – Researcher 

27, Akademicheskaya Str., 220072, Minsk

polinanebyshinets@yandex.byСамовичТ. В.SamovichT. V.

Самович Татьяна Викторовна – канд. биол. наук, вед. науч. сотрудник

ул. Академическая, 27, 220072, г. Минск

Tatsiana V. Samovich – Ph. D. (Biol.), Leading Researcher

27, Akademicheskaya Str., 220072, Minsk

samovich77@gmail.comЛаманН. А.LamanN. A.

Ламан Николай Афанасьевич – академик, д-р биол. наук, заведующий лабораторией

ул. Академическая, 27, 220072, г. Минск

Nikolai A. Laman – Academician, D. Sc. (Biol.), Head of the Laboratory

27, Akademicheskaya Str., 220072, Minsk

nikolai.laman@gmail.comИнститут экспериментальной ботаники имени В. Ф. Купревича Национальной академии наук БеларусиБеларусьV. F. Kuprevich Institute of Experimental Botany of the National Academy of Sciences of BelarusBelarus202611112026714292299Copyright © Боровик А.А., Небышинец П.А., Самович Т.В., Ламан Н.А., 20262026Боровик А.А., Небышинец П.А., Самович Т.В., Ламан Н.А.Borovik A.A., Nebyshinets P.A., Samovich T.V., Laman N.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestibio.belnauka.by/jour/article/view/1032

В статье приведены результаты анализа проростков сахарной свеклы, семена которых перед посевом были инкрустированы защитно-стимулирующими составами (ЗСС) на основе поливинилацетатной дисперсии (ПВА), содержащими брассинолид (БЛ, ЗСС-БЛ) или эпибрассинолид (ЭБЛ, ЗСС-ЭБЛ) в концентрации 10–8 М. Изучены ростовые параметры, содержание фотосинтетических пигментов и фотосинтетическая активность растений. Установлено, что обработка семян ЗСС-ЭБЛ обеспечила увеличение массы корня проростков на 56 % относительно контроля. Методом PAM-флуориметрии выявлено, что ЗСС-БЛ снижает нерегулируемые потери энергии фотосистемы (ФС) II (Y(NO)) на 24 % и повышает эффективность работы ФС II (Y(II)) на 62 %.

The article presents the results of the analysis of sugar beet seedlings whose seeds were encrusted before sowing with protective-stimulating compositions (PSC) based on polyvinyl acetate dispersion (PVA) containing either brassinolide (BL, PSC-BL) or epibrassinolide (EBL, PSC-EBL) at a concentration of 10–8 M. Growth parameters, photosynthetic pigment content, and photosynthetic activity of plants were studied. It was found that seed treatment with PSC-EBL provided an increase in the root mass of seedlings by 56 % relative to the control. Using PAM-fluorimetry, it was revealed that PSC-BL reduces unregulated energy losses of photosystem (PS) II (Y(NO)) by 24 % and increased the efficiency of PS II (Y(II)) by 62 %.

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The authors declare that there are no conflicts of interest present.