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Competitiveness and Nitrogen Fixation Efficiency Analysis of Rhizobium leguminosarum Strains in Different Field Pea ( Pisum sativum L.) Genotypes

Author

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  • Justina Kaziūnienė

    (Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, LT-58344 Akademija, Lithuania)

  • Audrius Gegeckas

    (Life Sciences Center, Institute of Biosciences, Vilnius University, LT-10257 Vilnius, Lithuania)

  • Laura Lapinskienė

    (Department of Biology, Faculty of Natural Sciences, Vytautas Magnus University, LT-53361 Kaunas, Lithuania)

  • Kristyna Razbadauskienė

    (Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, LT-58344 Akademija, Lithuania)

  • Raimonda Mažylytė

    (Life Sciences Center, Institute of Biosciences, Vilnius University, LT-10257 Vilnius, Lithuania)

  • Skaidrė Supronienė

    (Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, LT-58344 Akademija, Lithuania)

Abstract

The uneven effectiveness of rhizobia inoculants has increased interest in developing specific inoculants for each genotype. This study investigated the biological nitrogen fixation efficiency and competition between different Rhizobium leguminosarum strains in different pea genotypes, namely, “Egle DS” and “Respect”. The results showed that plant genotype was a significant factor determining competition and nitrogen fixation among R. leguminosarum strains. The most competitive R. leguminosarum LIN06 strain in the pea genotype “Egle DS” was characterized by a low nitrogen fixation efficiency, while the most competitive R. leguminosarum EGLE10 strain in the “Respect” genotype was characterized by a high biological nitrogen fixation efficiency. It was also found that the “Respect” genotype may prefer and form symbiotic relationships with more efficient nitrogen fixing strains, while the “Egle DS” genotype formed symbiotic relationships with less efficient strains. However, even less efficient strains had a significant positive effect on nitrogen accumulation in plants under natural conditions. Finally, our study showed that sophisticated tests and methods are not necessary to analyze the competitiveness of rhizobia; it is sufficient to analyze the effectiveness of bacterial strains on plants in unsterilized soil.

Suggested Citation

  • Justina Kaziūnienė & Audrius Gegeckas & Laura Lapinskienė & Kristyna Razbadauskienė & Raimonda Mažylytė & Skaidrė Supronienė, 2025. "Competitiveness and Nitrogen Fixation Efficiency Analysis of Rhizobium leguminosarum Strains in Different Field Pea ( Pisum sativum L.) Genotypes," Agriculture, MDPI, vol. 15(16), pages 1-23, August.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:16:p:1784-:d:1728642
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    References listed on IDEAS

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    1. Mohamed Hemida Abd-Alla & Salem M. Al-Amri & Abdel-Wahab Elsadek El-Enany, 2023. "Enhancing Rhizobium –Legume Symbiosis and Reducing Nitrogen Fertilizer Use Are Potential Options for Mitigating Climate Change," Agriculture, MDPI, vol. 13(11), pages 1-26, November.
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