Bibliometric data utilized for devising the underlying citation-based metrics were collected on January 12, 2026. The ranking methodology focuses on a scientist’s D-index (Discipline H-index), a refined bibliometric indicator that accounts exclusively for papers and citations within the specific discipline under examination. This approach ensures discipline-specific rigor, reflecting the researcher’s output and impact in Plant Science and Agronomy alone.
Scope of Research and Inclusion Criteria
The ranking process began by examining a wide dataset comprising 279,971 scientist profiles drawn from diverse bibliometric data sources, covering all disciplines globally. From this extensive pool, 30 scientists specializing in Plant Science and Agronomy in Iran, Islamic Republic Of, were identified and assessed.
To qualify for inclusion in this ranking, each scientist was required to meet a minimum D-index threshold of 30. Additionally, a majority of their tier publications—denoting high-impact and peer-recognized works—had to be concentrated within the field of Plant Science and Agronomy. Beyond bibliometric indicators, awards and notable achievements within the discipline were also carefully considered.
The D-index threshold is set strategically, increasing in increments of 10 relative to the estimated total number of scholars in each discipline. This stratification is designed to reliably incorporate the top 1% of leading researchers. Furthermore, to ensure alignment between general scholarly impact and discipline-specific contribution, a proximity criterion limits the difference between a scientist's overall H-index and their D-index to 30% or less.
Verification and Validation Practices
Recognizing the inherent limitations of raw bibliometric data, the team behind this ranking applied meticulous manual verification processes to all scientist profiles. Each profile was cross-correlated against publications documented in a broad spectrum of trusted sources, guaranteeing accuracy and integrity.
While the number of papers published in prominent journals and conference proceedings does not directly influence the ranking position, this quantity serves as an important secondary signal reflecting a scientist’s research contribution within Plant Science and Agronomy.
The position in the ranking is therefore firmly established based on each researcher’s D-index as derived from data in OpenAlex and CrossRef, the foremost and most trusted open bibliometric databases available to the global scientific community.
For more detailed information about the methodology employed, readers are encouraged to visit our methodology page.
Research.com’s Mission and Agenda
Research.com is committed to fostering a deeper understanding of expert trajectories and scientific leadership among researchers, academic institutions, policymakers, and industry stakeholders worldwide. Our mission is to facilitate transparency in scientific excellence by identifying and highlighting leading experts in specific fields of study, countries, and research organizations.
Through the creation of meticulously curated rankings such as this, we aim to motivate informed decision-making and collaboration, enabling the global scientific community to recognize and engage with the forefront of innovation and scholarship in Plant Science and Agronomy.
