The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,328
10,234
0.404
* Total Citation Counts Rankings
Ranking Based On Selection :2
Andrology
Oxidative stress
Medicinal Plants
reactive oxygen species
male infertility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,585
10,579
0.679
* Total Citation Counts Rankings
Ranking Based On Selection :3
Plant ecology
vegetation-environmental relations
biogeography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,730
4,744
0.346
* Total Citation Counts Rankings
Ranking Based On Selection :4
Plant ecology
plant ecophysiology
conservation biology
invasion biology
ethnoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,367
4,668
0.349
* Total Citation Counts Rankings
Ranking Based On Selection :5
Plant Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,078
4,132
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :6
Plant Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,797
3,536
0.276
* Total Citation Counts Rankings
Ranking Based On Selection :7
microbiology
plant pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,537
5,131
0.409
* Total Citation Counts Rankings
Ranking Based On Selection :8
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,969
9,324
0.850
* Total Citation Counts Rankings
Ranking Based On Selection :9
Pollen analysis
palaeoscience
palynology
palaeoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,739
3,554
0.331
* Total Citation Counts Rankings
Ranking Based On Selection :10
Plant Physiology (Legume/Rhizobium Symbiosis)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,536
4,611
0.438
* Total Citation Counts Rankings
Ranking Based On Selection :11
plant ecophysiology
plant desiccation tolerance
seed biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,435
2,500
0.240
* Total Citation Counts Rankings
Ranking Based On Selection :12
Plant ecophysiology and ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,310
4,731
0.459
* Total Citation Counts Rankings
Ranking Based On Selection :13
Historical Ecology
Conservation Biology
Arid Lands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,071
3,535
0.351
* Total Citation Counts Rankings
Ranking Based On Selection :14
Biological control
silicon in agriculture
plant breeding
African crops
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,776
6,423
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :15
Drug development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,512
3,166
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :16
Biological control of invasive alien plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,100
1,615
0.265
* Total Citation Counts Rankings
Ranking Based On Selection :17
Plant Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,977
2,197
0.368
* Total Citation Counts Rankings
Ranking Based On Selection :18
Phenolic compounds
HPLC analysis
herbal teas
fruits
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,765
3,047
0.529
* Total Citation Counts Rankings
Ranking Based On Selection :19
Plant Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,668
2,099
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :20
Conservation
Plant-herbivore interaction
wild herbivore nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,629
2,026
0.360
* Total Citation Counts Rankings
Ranking Based On Selection :21
Postharvest Technology
Horticultural Science
Postharvest
Plant Physiology
Near Infrared
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,353
4,489
0.839
* Total Citation Counts Rankings
Ranking Based On Selection :22
Insect-plant interactions
biological control
pollination services
invasive wasps
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,167
3,057
0.592
* Total Citation Counts Rankings
Ranking Based On Selection :23
Horticultural Science
Climate Change
Plant Ecophysiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,257
1,435
0.337
* Total Citation Counts Rankings
Ranking Based On Selection :24
Plant Pathology
soil ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,975
1,864
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :25
Plant antioxidants/postharvest fruit biology and biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,498
2,984
0.853
Steven D. Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,328
10,234
0.404
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
Ralf Henkel
University of the Western Cape
Bellville, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,585
10,579
0.679
Andrology
Oxidative stress
Medicinal Plants
reactive oxygen species
male infertility
Michael Rutherford
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,730
4,744
0.346
Plant ecology
vegetation-environmental relations
biogeography
ETF Witkowski
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,367
4,668
0.349
Plant ecology
plant ecophysiology
conservation biology
invasion biology
ethnoecology
Jill M. Farrant
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,078
4,132
0.316
Karl Kunert
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,797
3,536
0.276
Teresa Coutinho
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,537
5,131
0.409
Hussien Shimelis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,969
9,324
0.850
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
Louis Scott
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,739
3,554
0.331
Pollen analysis
palaeoscience
palynology
palaeoecology
Felix Dapare Dakora
Tshwane University of Technology
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,536
4,611
0.438
Plant Physiology (Legume/Rhizobium Symbiosis)
Norman Pammenter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,435
2,500
0.240
plant ecophysiology
plant desiccation tolerance
seed biology
Michael Denis Cramer
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,310
4,731
0.459
Plant ecophysiology and ecology
M. Timm Hoffman
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,071
3,535
0.351
Historical Ecology
Conservation Biology
Arid Lands
Mark Laing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,776
6,423
0.657
Biological control
silicon in agriculture
plant breeding
African crops
climate change
Bharti Odhav
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,512
3,166
0.486
VC Moran
University of Cape Town
Cape Town, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,100
1,615
0.265
Biological control of invasive alien plants
Richard Beckett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,977
2,197
0.368
Dalene De Beer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,765
3,047
0.529
Phenolic compounds
HPLC analysis
herbal teas
fruits
Marnie E. Light
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,668
2,099
0.370
CC Grant
Rhodes University
Grahamstown, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,629
2,026
0.360
Conservation
Plant-herbivore interaction
wild herbivore nutrition
Lembe S. Magwaza
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,353
4,489
0.839
Postharvest Technology
Horticultural Science
Postharvest
Plant Physiology
Near Infrared
Ruan Veldtman
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,167
3,057
0.592
Insect-plant interactions
biological control
pollination services
invasive wasps
Stephanie Midgley
Stellenbosch University
Stellenbosch, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,257
1,435
0.337
Horticultural Science
Climate Change
Plant Ecophysiology
Wijnand Swart
University of the Free State
Bloemfontein, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,975
1,864
0.469
Samson Zeray Tesfay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,498
2,984
0.853
Plant antioxidants/postharvest fruit biology and biochemistry