Data Sources and Citation Metrics
The ranking of the 5th edition of the Research.com Best Plant Science and Agronomy Scientists in Ghana is primarily based on bibliometric data sourced from OpenAlex and CrossRef, complemented by multiple other authoritative databases. This comprehensive data collection was conducted on January 12, 2026, ensuring the most current and relevant citation-based metrics were utilized in the analyses. A scientist’s ranking position is determined by their D-index (Discipline H-index), a specialized metric that isolates papers and associated citations pertinent exclusively to the examined discipline, thereby providing a focused representation of their scholarly impact within Plant Science and Agronomy.
Scope of Research and Ranking Criteria
The ranking methodology rigorously examined a total of 279,971 scientist profiles drawn from diverse bibliometric data sources across all academic disciplines. Within this extensive corpus, 2,000 scientists specializing in Plant Science and Agronomy were identified and evaluated. To qualify for inclusion in the ranking, a candidate’s D-index was required to be at least 30, and the majority of their tier publications needed to be situated firmly within the Plant Science and Agronomy domain. Additionally, consideration was given to the scientist’s awards and recognized achievements within this field.
The threshold for the D-index is dynamically set in increments of 10 relative to the estimated total number of researchers per discipline. This approach ensures inclusion of the top 1% of leading scholars in each field and maintains a rigorous standard of excellence. Furthermore, to guarantee relevance and specialization, candidates must demonstrate a proximity of 30% or less between their general H-index and D-index, ensuring that their impact is predominantly rooted in the discipline of Plant Science and Agronomy.
Verification and Validation Practices
At Research.com, we acknowledge that raw bibliometric data alone cannot definitively evaluate a scientist’s output or merit. Consequently, all scientist profiles included in the ranking were subjected to meticulous manual verification and were cross-correlated against publications registered in a broad spectrum of trustworthy and reputable sources. Although not a numeric factor contributing to a researcher’s ranking on Research.com, the volume of papers published in prominent journals and conference proceedings serves as a valuable secondary indicator of scientific contribution and standing within the Plant Science and Agronomy research community.
The ranking positions are ultimately established using each researcher’s verified D-index, derived from data aggregated by OpenAlex and CrossRef — currently the most prominent and widely recognized open bibliometric databases accessible to the global research community. For additional details on the comprehensive methodology utilized, we invite readers to consult our methodology page.
Research.com’s Mission and Agenda
Research.com’s mission with the creation of this ranking is to motivate researchers, industry leaders, and policymakers worldwide to closely observe the directions and advancements of leading experts in specific scientific domains. By providing transparent, rigorous, and data-driven insights, this ranking serves as an essential platform for the global scientific community to identify and connect with top-tier experts within Plant Science and Agronomy, at national levels such as Ghana, and within research institutions themselves. Through this recognition and dissemination of expertise, we aim to foster collaboration, innovation, and informed decision-making across academia, industry, and government.
