A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that accounts exclusively for scholarly output and citation impact within a specific discipline—here, Plant Science and Agronomy. The D-index provides a discipline-focused measure of research influence, ensuring that only contributions pertinent to the examined field shape the ranking.
Scope of Research and Qualification Criteria
The ranking considers 279,971 scientist profiles identified from a broad spectrum of bibliometric data sources across all scientific disciplines, with 2,000 scientists specifically recognized in Plant Science and Agronomy. To qualify for inclusion in this specialized ranking, a scientist must meet several stringent criteria:
- A minimum D-index of 30, ensuring a substantial and impactful body of work within the discipline.
- The majority of tier publications must be directly related to Plant Science and Agronomy, focusing the ranking on experts with a robust specialization.
- Recognition of significant awards and achievements in Plant Science and Agronomy further substantiates a scientist’s qualifications.
Notably, the D-index threshold is dynamically set in increments of 10 based on the estimated total number of scholars in each discipline. This calibration guarantees that the top 1% of leading scholars are consistently included. Additionally, a safeguard is employed requiring the proximity between a scientist’s general H-index and their D-index to be 30% or less, preserving the integrity of discipline-specific impact representation.
Additional Verification Practices
Research.com acknowledges the inherent limitations of raw bibliometric data as an absolute measure of scholarly output. To ensure accuracy and credibility, every scientist profile has undergone manual verification and cross-correlation against a wide array of trustworthy sources and publication records.
While the number of publications in prominent journals and conference proceedings is not a contributing factor to the position within the Research.com ranking, it remains a valuable secondary indicator reflecting a scientist’s contribution to the field.
The ranking position is ultimately established using each researcher’s D-index, derived from data synthesized primarily from OpenAlex and CrossRef—two of the most prominent and dependable bibliometric databases available to the global research community.
Readers interested in a more detailed understanding of the methodology are encouraged to visit our methodology page.
Research.com’s Mission
The creation of this ranking aligns with Research.com’s broader mission to inspire researchers, companies, and policymakers worldwide to examine the directions of leading experts. By providing transparent and meticulously constructed rankings, we aim to foster greater awareness within the scientific community regarding who the top researchers are in specific fields, countries, and research institutions.
This initiative not only highlights individual excellence but also promotes informed decision-making, collaboration, and strategic support for research development on a global scale.
