The bibliometric data employed to devise citation-based metrics, including publication records and citation counts, were collected on January 12, 2026. A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a metric that filters publications and citation metrics strictly to those relevant to the examined discipline. This approach ensures the ranking reflects scholarly impact specifically within Plant Science and Agronomy, rather than broader general research activity.
Scope of Research and Ranking Inclusion Criteria
The ranking process commenced with an extensive examination of 279,971 scientist profiles identified from an array of bibliometric data sources across all disciplines. Of these, 11 scientists specializing specifically in Plant Science and Agronomy were further analyzed to construct this focused ranking.
To qualify for inclusion, a scientist's D-index was required to be at least 30. Furthermore, a majority of their Tier 1 publications had to be situated in the field of Plant Science and Agronomy, ensuring subject-matter relevance. Alongside bibliometric measures, outstanding awards and recognized achievements in Plant Science and Agronomy were also factored into the evaluative criteria.
The threshold for the D-index is tailored to each discipline based on its scholarly population. It increases in increments of 10 relative to the estimated total number of researchers in the field, while guaranteeing inclusion of the top 1% of leading scholars. Additionally, candidates must exhibit a close alignment between their general H-index and their discipline-specific D-index, with a maximum allowable difference of approximately 30% to ensure consistency in research focus.
Additional Verification Practices
We recognize that raw bibliometric data alone cannot fully capture the quality and impact of a researcher’s output. Therefore, all scientist profiles included in this ranking underwent thorough manual verification. Publication records were cross-correlated against a broad set of trustworthy sources to confirm accuracy and avoid discrepancies.
While not contributing directly to the ranking position, the volume of publications in prominent journals and conference proceedings serves as a valuable secondary indicator of a researcher’s contribution within the Plant Science and Agronomy community.
The final ranking order is established based on each scientist’s D-index derived from OpenAlex and CrossRef data. Together, these widely respected databases provide a robust foundation for an authoritative and credible ranking system. For a detailed explanation of the processes and methodologies employed, interested readers are encouraged to visit our methodology page.
Research.com’s Mission Behind the Ranking
At Research.com, our mission is to motivate researchers, institutions, companies, and policymakers worldwide to better understand the trajectories and expertise of leading scientists. By illuminating who the foremost experts are in specific disciplines, geographic regions, and academic institutions, we aim to foster informed decision-making and promote collaboration across the global scientific community.
This ranking is the result of careful and meticulous scholarship designed to provide transparency and insight into the most impactful Plant Science and Agronomy researchers in Tunisia. We hope it serves as a valuable resource for peers, funding bodies, and research organizations seeking excellence and leadership in this critical field.
