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 :2
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
P. Lava Kumar
Virology
diagnostics
crop protection
seed health
Metrics
H-Index
i10 Index
Citation Counts
45
190
10,249
* Total H IndexRankings
Ranking Based On Selection :5
Leena Tripathi
Plant Biotechnology
Gene Editing
Genetic Modification
Sustainable Agriculture
Metrics
H-Index
i10 Index
Citation Counts
42
80
5,475
* Total H IndexRankings
Ranking Based On Selection :8
John Derera
agriculture
genetics
biology
molecular
food security
Metrics
H-Index
i10 Index
Citation Counts
35
94
3,904
* Total H IndexRankings
Ranking Based On Selection :9
Lieven Claessens
climate smart agriculture
sustainable intensification
food security
soil science
geomorphology
Metrics
H-Index
i10 Index
Citation Counts
32
53
5,626
* Total H IndexRankings
Ranking Based On Selection :11
Jaindra N Tripathi
Plant Biotechnology
plant tissue culture
gene editing
and transgenics
Metrics
H-Index
i10 Index
Citation Counts
31
48
3,181
* Total H IndexRankings
Ranking Based On Selection :12
Leonard Rusinamhodzi
Agronomy
ISFM
Crop modeling
farming systems analysis
Metrics
H-Index
i10 Index
Citation Counts
29
41
4,203
* Total H IndexRankings
Ranking Based On Selection :14
Asrat Asfaw
plant breeding
genetics
molecular breeding
genomics
Metrics
H-Index
i10 Index
Citation Counts
27
47
2,536
* Total H IndexRankings
Ranking Based On Selection :16
Shiferaw Feleke
Agricultural Economics
Impact Evaluation
International trade & policy analysis
Metrics
H-Index
i10 Index
Citation Counts
24
34
2,616
* Total H IndexRankings
Ranking Based On Selection :17
Steven M Cole
gender
rural development
health
nutrition
inequality
Metrics
H-Index
i10 Index
Citation Counts
23
36
1,462
* Total H IndexRankings
Ranking Based On Selection :18
E. Jeroen Huising
Soil Ecology
Soil Science
Natural Resources Management
Soil Fertility
Soil Biology
Metrics
H-Index
i10 Index
Citation Counts
22
36
3,861
* Total H IndexRankings
Ranking Based On Selection :20
Haroon Sseguya
Knowledge Management
Monitoring and Evaluation
Capacity Building
Technology Scaling
Metrics
H-Index
i10 Index
Citation Counts
18
29
977
* Total H IndexRankings
Ranking Based On Selection :21
Julius Manda
Adoption and Impact of agricultural Technologies
Development economics
Impact evaluation and applied econometrics
Metrics
H-Index
i10 Index
Citation Counts
17
25
2,269
* Total H IndexRankings
Ranking Based On Selection :22
Adane Hirpa Tufa
impact evaluation
value/supply chain
gender analysis
conservation agriculture
climate change
Metrics
H-Index
i10 Index
Citation Counts
17
20
1,712
* Total H IndexRankings
Ranking Based On Selection :23
Godfrey Taulya
Agronomy
Crop Growth Modelling
Crop Nutrition and Water Requirements
Farming Systems
Soil Science
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,314
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Ranajit Bandyopadhyay
Metrics
H-Index
i10-Index
Citation Counts
64
182
12,000
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
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: 3
P. Lava Kumar
Metrics
H-Index
i10-Index
Citation Counts
45
190
10,249
Virology
diagnostics
crop protection
seed health
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Robert Asiedu
Metrics
H-Index
i10-Index
Citation Counts
45
201
7,917
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Leena Tripathi
Metrics
H-Index
i10-Index
Citation Counts
42
80
5,475
Plant Biotechnology
Gene Editing
Genetic Modification
Sustainable Agriculture
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Tahirou Abdoulaye
Metrics
H-Index
i10-Index
Citation Counts
41
129
7,352
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Peter Kulakow
Metrics
H-Index
i10-Index
Citation Counts
36
99
5,078
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
John Derera
Metrics
H-Index
i10-Index
Citation Counts
35
94
3,904
agriculture
genetics
biology
molecular
food security
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Lieven Claessens
Metrics
H-Index
i10-Index
Citation Counts
32
53
5,626
climate smart agriculture
sustainable intensification
food security
soil science
geomorphology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Chiedozie Egesi
Metrics
H-Index
i10-Index
Citation Counts
31
65
4,183
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Jaindra N Tripathi
Metrics
H-Index
i10-Index
Citation Counts
31
48
3,181
Plant Biotechnology
plant tissue culture
gene editing
and transgenics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Leonard Rusinamhodzi
Metrics
H-Index
i10-Index
Citation Counts
29
41
4,203
Agronomy
ISFM
Crop modeling
farming systems analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Allan F Brown
Metrics
H-Index
i10-Index
Citation Counts
29
51
4,117
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Asrat Asfaw
Metrics
H-Index
i10-Index
Citation Counts
27
47
2,536
plant breeding
genetics
molecular breeding
genomics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Adebayo Busura Abass
Metrics
H-Index
i10-Index
Citation Counts
27
62
2,949
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Shiferaw Feleke
Metrics
H-Index
i10-Index
Citation Counts
24
34
2,616
Agricultural Economics
Impact Evaluation
International trade & policy analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Steven M Cole
Metrics
H-Index
i10-Index
Citation Counts
23
36
1,462
gender
rural development
health
nutrition
inequality
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
E. Jeroen Huising
Metrics
H-Index
i10-Index
Citation Counts
22
36
3,861
Soil Ecology
Soil Science
Natural Resources Management
Soil Fertility
Soil Biology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Ibnou Dieng
Metrics
H-Index
i10-Index
Citation Counts
21
29
1,414
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Haroon Sseguya
Metrics
H-Index
i10-Index
Citation Counts
18
29
977
Knowledge Management
Monitoring and Evaluation
Capacity Building
Technology Scaling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Julius Manda
Metrics
H-Index
i10-Index
Citation Counts
17
25
2,269
Adoption and Impact of agricultural Technologies
Development economics
Impact evaluation and applied econometrics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Adane Hirpa Tufa
Metrics
H-Index
i10-Index
Citation Counts
17
20
1,712
impact evaluation
value/supply chain
gender analysis
conservation agriculture
climate change
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Godfrey Taulya
Metrics
H-Index
i10-Index
Citation Counts
15
17
1,314
Agronomy
Crop Growth Modelling
Crop Nutrition and Water Requirements
Farming Systems
Soil Science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Gundula Fischer
Metrics
H-Index
i10-Index
Citation Counts
15
19
583
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Gloria Valentine Nakato
Metrics
H-Index
i10-Index
Citation Counts
15
19
712