A scientist’s position within the ranking is determined based on their D-index (Discipline H-index), a customized variant of the traditional H-index that exclusively considers publications and citation metrics pertinent to the specific discipline under examination—in this case, Plant Science and Agronomy. This discipline-specific focus ensures that the assessment accurately captures a researcher’s impact within their core area of expertise.
Scope of Research and Ranking Eligibility
To establish a rigorous and meaningful ranking framework, an extensive examination was conducted across all disciplines, reviewing 279,971 scientist profiles identified from a variety of bibliometric sources. Specifically, 3 scientist profiles within the Plant Science and Agronomy disciplines were carefully evaluated for inclusion in this ranking.
Eligibility for the ranking required that a scientist’s D-index be at least 30, signifying a substantial research impact within Plant Science and Agronomy. Additionally, the majority of a qualifying scientist’s tier publications must be concentrated in the Plant Science and Agronomy domain to ensure disciplinary relevance. Beyond bibliometric measures, verified awards and notable achievements within the field also contributed as qualitative factors in the assessment process.
The D-index threshold for considering top researchers is calibrated in increments of 10, aligned with the estimated total number of scholars within each discipline, thereby accommodating disciplinary scale variations. This approach guarantees the inclusion of the top 1% of leading scholars in the final list. Furthermore, a strict criterion mandates that the proximity between a scientist’s general H-index and their D-index does not exceed 30%, reinforcing the integrity of the discipline-focused evaluation.
Verification and Validation Procedures
Recognizing the limitations of purely quantitative data, the research team undertook meticulous manual verification of all scientist profiles included in the ranking. This involved cross-correlating bibliometric information against publications archived in a diverse array of trustworthy sources to ensure accuracy and authenticity.
While the number of papers published in prominent journals and conference proceedings is not a direct factor influencing the ranking position, it serves as a valuable secondary indicator of a scientist’s substantive contributions to their field.
The final ranking positions are established through rigorous application of each researcher’s D-index, leveraging reliable data from OpenAlex and CrossRef, which remain the foremost bibliometric databases available to researchers globally.
For detailed information on the methodology behind this ranking, please visit our methodology page.
Research.com’s Mission and Objectives
The creation of this ranking aligns with Research.com’s broader mission to encourage researchers, companies, and policymakers worldwide to monitor the trajectories of leading experts. We strive to provide the scientific community with transparent, reliable insight into who the foremost authorities are within specific fields of study, at national levels, and within individual research institutions. By doing so, we aim to foster informed collaborations, policy decisions, and investment in scientific research that propels innovation and excellence.
