ПРОДУКТИВНІСТЬ СИМБІОТИЧНОЇ СИСТЕМИ СОЯ – BRADYRHIZOBIUM JAPONICUM ЗА ВИКОРИСТАННЯ ШТАМУ РС08 І ОБРОБКИ РОСЛИН НАНОКАРБОКСИЛАТАМИ Ge ТА Mo

• Datum: 2026
• Hauptverfasser: Обезюк, І. М., Михалків, Л. М., Коць, С. Я., Омельчук, С. В., Береговенко, С. К.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Institute of Agrocultural Microbiology and Agro-industrial Manufacture of NAAS of Ukraine 2026
• Schlagworte: Bradyrhizobium japonicum; Glycine max (L.) Merr; нанокарбоксилати Ge і Mo; симбіоз; нодуляція; азотфіксація; маса рослин; зернова продуктивність
• Online Zugang: https://smic.in.ua/index.php/journal/article/view/557
• Назва журналу: Agriciltural microbiology

Objective. To research the peculiarities of the soybean – Bradyrhizobium japonicum symbiotic system formation and functioning, as well as its productivity under inoculation with an active strain and using germanium and molybdenum nanocarboxylates during vegetation. Methods. Microbiological, physiological, statistical. Nodule bacteria (B. japonicum) РС08 strain and soybean (Glycine max (L.) Merr.) Samorodok variety were involved in the research. In the phase of three genuine leaves, plants were treated with nanocarboxylates of germanium and molybdenum. The following indicators were analyzed: the number and mass of nodules on the plants roots, nitrogenfixing activity of the symbiosis (the acetylene-restoring method, using an “Agilent Technologies 6850”, USA), above-ground mass of plants in the phases of flowering and beans formation, as well as grain productivity of soybean. Results. Pre-sowing inoculation of soybean seeds with rhizobia B. japonicum РС08 ensured the formation of an active symbiotic apparatus, which led to the intensification of plant growth and development, herewith the increase of above-ground mass was 82– 109 %, and the increase of individual soybean grain productivity was 22 % compared to the control without inoculation. The combination of pre-sowing seed inoculation with an active strain and the application of germanium and molybdenum nanocarboxylates solutions to plants during the growing season promoted the formation and development of nodules on the roots, enhanced their nitrogen-fixing activity, and increased plant biomass during the flowering period. At the same time, the use of Mo prolonged the period of active nitrogen fixation, which could be a determining factor in the grain productivity of plants formation and ensured a significant increase in the number of beans and the weight of grain per plant by 91 and 83 %, respectively, compared to spontaneously inoculated plants (control 1), or 58 and 51 %, respectively, compared to soybean inoculated before sowing (control 2). Conclusions. The obtained results indicate the potential of pre-sowing inoculation of seeds combination with an active РС08 strain and plants treatment during vegetation with Mo nanocarboxylate to form an active symbiotic apparatus with an extended period of functioning, which ensures an increase of soybean grain productivity.