A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a refined variant of the traditional H-index that focuses exclusively on papers and citation metrics within the examined discipline. This approach guarantees the assessment of a researcher’s influence specific to Plant Science and Agronomy, isolating disciplinary impact from broader, cross-disciplinary citation activity.
Scope of Research and Inclusion Criteria
The ranking evaluation process began with an extensive review of 279,971 scientist profiles identified from diverse bibliometric data sources across all scientific disciplines. Out of this vast pool, 1,000 scientists specializing in Plant Science and Agronomy were specifically examined. To qualify for inclusion in the ranking, a scientist’s D-index had to be at least 30, reflecting significant scholarly impact in the discipline. Additionally, a majority of the scientist’s tier publications needed to be concentrated within the domain of Plant Science and Agronomy.
Beyond bibliometric performance, scientists’ awards and recognized achievements within the field were also factored into the evaluation to present a more holistic view of their contributions. The D-index threshold is dynamically calibrated—set as an increment of 10—depending on the estimated total number of scholars in each discipline while ensuring that the top 1% of leading scholars are consistently incorporated into the ranking.
Another rigorously applied criterion is the requirement that the proximity between a scientist’s general H-index and their D-index be 30% or less. This condition serves to confirm that the demonstrated impact is genuinely discipline-specific and not overly diluted by external research areas.
Additional Verification Practices
The Research.com team recognizes that raw bibliometric data alone cannot serve as an absolute measure of academic output or excellence. In response, all scientist profiles included in the ranking undergo manual verification and are cross-correlated against publications indexed in a broad array of trustworthy sources. This comprehensive validation reinforces the reliability of the ranking and helps prevent distortions due to data inconsistencies or attribution errors.
While the number of papers published in prominent journals and conference proceedings is not a determinant for ranking position, this metric is regarded as a valuable secondary signal demonstrating a scientist’s contribution to their specific scientific field. The ranking position is ultimately established via each researcher’s D-index, calculated from data gathered predominantly from OpenAlex and CrossRef—two of the most widely recognized and trusted bibliometric databases available globally to the research community.
For a detailed explanation of the methodology, please consult our methodology page.
Research.com’s Mission Behind the Ranking
At Research.com, our mission is to motivate researchers, organizations, and policymakers worldwide to understand the direction of leading scientific experts. We strive to provide the global scientific community with transparent and authoritative insights into who the foremost specialists are within specific fields of study, across various countries, and within research institutions.
This ranking is the result of careful, meticulous work aimed at fostering collaboration, knowledge exchange, and informed decision-making across the academic, corporate, and governmental sectors. By highlighting outstanding achievements in Plant Science and Agronomy in Cameroon, we hope to empower stakeholders to support innovation and advancement in these critical areas of research.
