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Synergistic Effect of PGPR and Nutrient Complex on Soybean Seed Germination and Initial Seedling Growth

Author

Listed:
  • Jelena Marinković

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia
    These authors contributed equally to this work.)

  • Dragana Miljaković

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia
    These authors contributed equally to this work.)

  • Janko Červenski

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia)

  • Marjana Vasiljević

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia)

  • Vuk Đorđević

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia)

  • Gordana Tamindžić

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia)

  • Jegor Miladinović

    (Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, 21000 Novi Sad, Serbia)

Abstract

Biostimulants based on Bradyrhizobium japonicum are commonly used in soybean production. However, the effect of nitrogen-fixing bacteria in consortia with other plant growth-promoting rhizobacteria (PGPR) and their integration with mineral nutrients on soybean seed quality has not been explored. The study aimed to examine the effects of five treatments on seed germination and initial seedling growth of two soybean cultivars (‘NS Apolo’, ‘NS Rubin’): control (untreated seeds); Br. japonicum (BJ), BJ and nutrient complex (NC), BJ, Azotobacter chroococcum (AC), Bacillus subtilis (BS), and NC; BJ, AC, Bacillus megaterium (BM), and NC. Seed treatments significantly enhanced germination energy, seedling vigor index, root length, fresh shoot weight, fresh root weight, dry shoot weight, and dry root weight of both cultivars, as well as final germination, shoot length, and shoot elongation rate of ‘NS Rubin’, as compared to the control. The highest effect on the investigated parameters was achieved by integrated use of PGPR and nutrients (BJ + BM + AC + NC), indicating that integration of PGPR with a targeted NC represents an innovative approach with practical implications for improving early soybean establishment and field performance.

Suggested Citation

  • Jelena Marinković & Dragana Miljaković & Janko Červenski & Marjana Vasiljević & Vuk Đorđević & Gordana Tamindžić & Jegor Miladinović, 2025. "Synergistic Effect of PGPR and Nutrient Complex on Soybean Seed Germination and Initial Seedling Growth," Agriculture, MDPI, vol. 15(19), pages 1-16, September.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:19:p:2022-:d:1759257
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    References listed on IDEAS

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    1. Guilherme Anacleto dos Reis & Walter Jose Martínez-Burgos & Roberta Pozzan & Yenis Pastrana Puche & Diego Ocán-Torres & Pedro de Queiroz Fonseca Mota & Cristine Rodrigues & Josilene Lima Serra & Thama, 2024. "Comprehensive Review of Microbial Inoculants: Agricultural Applications, Technology Trends in Patents, and Regulatory Frameworks," Sustainability, MDPI, vol. 16(19), pages 1-33, October.
    2. Gordana Tamindžić & Maja Ignjatov & Dragana Miljaković & Janko Červenski & Dragana Milošević & Zorica Nikolić & Sanja Vasiljević, 2023. "Seed Priming Treatments to Improve Heat Stress Tolerance of Garden Pea ( Pisum sativum L.)," Agriculture, MDPI, vol. 13(2), pages 1-15, February.
    3. D. Egamberdieva, 2010. "Growth response of wheat cultivars to bacterial inoculation in calcareous soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(12), pages 570-573.
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