Subject Rankings

International Institute of Tropical Agriculture (IITA) Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Oct 28, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (901.317) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :1
James Legg
Cassava Viruses
Whiteflies
Epidemiology
Molecular Ecology
Metrics
H-Index
i10 Index
Citation Counts
51
120
9,275
* Total H IndexRankings
Ranking Based On Selection :3
Kyle M. Dittmer
biogeochemistry
ecosystem ecology
agroecology
climate change
low emissions development
Metrics
H-Index
i10 Index
Citation Counts
8
8
271
* Total H IndexRankings
Ranking Based On Selection :4
Njoki Kahiu
Terrestrial/Drylands/Savanna Ecology
Geospatial Analysis
Disaster Risk Financing (index-based
Metrics
H-Index
i10 Index
Citation Counts
4
3
107
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
James Legg
Metrics
H-Index
i10-Index
Citation Counts
51
120
9,275
Cassava Viruses
Whiteflies
Epidemiology
Molecular Ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Chiedozie Egesi
Metrics
H-Index
i10-Index
Citation Counts
31
65
4,183
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Kyle M. Dittmer
Metrics
H-Index
i10-Index
Citation Counts
8
8
271
biogeochemistry
ecosystem ecology
agroecology
climate change
low emissions development
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Njoki Kahiu
Metrics
H-Index
i10-Index
Citation Counts
4
3
107
Terrestrial/Drylands/Savanna Ecology
Geospatial Analysis
Disaster Risk Financing (index-based
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Shaheed Nasrullah
Metrics
H-Index
i10-Index
Citation Counts
2
2
60