Bibliometric data underpinning the citation-based metrics employed in this ranking were collected on January 12, 2026. This ensures that the most current and relevant publication and citation information are utilized to assess scientific impact effectively. The ranking of an individual scientist is determined by their D-index (Discipline H-index), a metric that uniquely accounts only for papers and citations pertinent to the specific discipline under evaluation, in this case, Plant Science and Agronomy.
Scope of Research and Inclusion Criteria
Our evaluation encompassed a total of 279,971 scientist profiles identified across various bibliometric platforms, representing scholars from a diverse array of disciplines internationally. Focusing specifically on Plant Science and Agronomy, 52 scientists met the initial criteria for detailed assessment.
A scientist qualifies for inclusion in the ranking by meeting a minimum D-index threshold of 30, ensuring a significant and sustained contribution within the discipline. Additionally, a majority of the scientist's tier publications must be in Plant Science and Agronomy to maintain disciplinary relevance. Beyond bibliometric indicators, notable awards and achievements within the Plant Science and Agronomy field are also taken into careful consideration to acknowledge broader scholarly impact.
The threshold for the D-index is calibrated in increments of 10 relative to the estimated total number of scholars active in each discipline, thereby guaranteeing representation of the top 1% of leading experts. To maintain alignment between general research productivity and disciplinary focus, a proximity limit of 30% or less is applied between a scientist's overall H-index and their D-index.
Verification and Validation Procedures
We recognize that raw bibliometric data alone cannot fully capture the nuanced scholarly contributions of researchers. Consequently, all scientist profiles included in the ranking underwent meticulous manual verification. This process involved cross-correlating publication records with a broad range of trustworthy sources to ensure accuracy and authenticity of the data presented.
While the number of publications in prominent journals and conference proceedings does not directly influence a researcher's position in the ranking, it remains a valuable secondary signal of a scientist’s contribution to their field. Researchers’ ranking positions are primarily established through their D-index, derived from data consolidated by OpenAlex and CrossRef, two of the most prominent and respected bibliometric databases accessible to the scientific community.
For comprehensive details on our rigorous methodology, we encourage readers to visit our methodology page.
Research.com’s Mission and Vision
The creation of this ranking aligns with Research.com’s overarching mission to inspire researchers, industry stakeholders, and policymakers worldwide to examine emerging trends and directions among top experts. By providing transparent and data-driven insights, we strive to facilitate greater awareness and recognition of leading scholars in specific domains across different countries and institutional settings.
Our goal is to enhance connectivity within the global scientific ecosystem by highlighting distinguished researchers, thereby supporting informed decision-making, fostering collaboration, and advancing scientific progress in Plant Science and Agronomy and beyond.
