| Issue |
BIO Web Conf.
Volume 246, 2026
Sriwijaya International Conference on Smart and Integrated Agriculture System (1st SRI-ICAS 2026)
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|
|---|---|---|
| Article Number | 00040 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/bioconf/202624600040 | |
| Published online | 22 July 2026 | |
Research Trends in Plant Growth-Promoting Rhizobacteria (PGPR) for Enhancing Plant Growth and Productivity Under Drought Stress: A Systematic Review and Bibliometric Analysis (2016– May 2026)
1 Agroecotechnology Program Study, Department of Agricultural Cultivation, Faculty of Agriculture, Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih KM 32, Indralaya, Ogan Ilir 30662, Sumatera Selatan, Indonesia
2 Agronomy Program Study, Department of Agricultural Cultivation, Faculty of Agriculture, Universitas Sriwijaya, Jl. Raya Palembang-Prabumulih KM 32, Indralaya, Ogan Ilir 30662, Sumatera Selatan, Indonesia
* Corresponding author : This email address is being protected from spambots. You need JavaScript enabled to view it.
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Abstract
Drought stress has become a major constraint on global agricultural productivity due to climate change, necessitating sustainable solutions such as Plant Growth-Promoting Rhizobacteria (PGPR) to enhance crop resilience. This study aims to systematically review and bibliometrically analyze research trends on the application of PGPR for improving plant growth and productivity under drought stress over the period 2016-2026. A systematic literature search was conducted using the Scopus database on May 28, 2026, with keywords related to PGPR, drought stress, and plant productivity. A total of 1,086 initial records were screened following PRISMA guidelines, resulting in 662 research articles for final analysis. Bibliometric analysis was performed using VOSviewer to map publication trends, key journals, productive authors, leading countries, institutional affiliations, funding sponsors, and keyword co-occurrence networks. The findings reveal a significant increase in publications from 16 articles in 2016 to a projected 67 articles in 2026. The most drastic increase occurred between 2024 (102 articles) and 2025 (93 articles). Research on PGPR for drought stress mitigation has grown substantially over the past decade, with increasing global attention. However, gaps remain in field validation, cross-compatibility of microbial strains, and long-term ecological assessments. Future research should prioritize field-scale studies, multi-strain consortia development, and integration with sustainable agricultural practices.
© The Authors, published by EDP Sciences, 2026
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