Citation Rankings
Highly Cited Researchers
South Africa Highly Cited Researchers Citation Agriculture & Forestry / Plant Science in South Africa Rankings 2025
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
* Total Citation Counts Rankings
Rankings
28,827
87
8
Ranking Based On Selection: 1
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
* Total Citation Counts Rankings
Rankings
56,596
191
5
Ranking Based On Selection: 2
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
* Total Citation Counts Rankings
Rankings
66,912
234
1
Ranking Based On Selection: 3
Michael Rutherford
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,730
4,744
0.346
Plant ecology
vegetation-environmental relations
biogeography
* Total Citation Counts Rankings
Rankings
69,204
241
35
Ranking Based On Selection: 4
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
* Total Citation Counts Rankings
Rankings
71,199
246
49
Ranking Based On Selection: 5
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
* Total Citation Counts Rankings
Rankings
73,148
250
23
Ranking Based On Selection: 6
Karl Kunert
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,797
3,536
0.276
* Total Citation Counts Rankings
Rankings
75,054
258
25
Ranking Based On Selection: 7
Teresa Coutinho
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,537
5,131
0.409
* Total Citation Counts Rankings
Rankings
88,154
315
28
Ranking Based On Selection: 8
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
* Total Citation Counts Rankings
Rankings
90,422
326
5
Ranking Based On Selection: 9
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
* Total Citation Counts Rankings
Rankings
92,546
331
3
Ranking Based On Selection: 10
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)
* Total Citation Counts Rankings
Rankings
93,580
336
30
Ranking Based On Selection: 11
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
* Total Citation Counts Rankings
Rankings
94,862
347
81
Ranking Based On Selection: 12
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
* Total Citation Counts Rankings
Rankings
97,500
356
85
Ranking Based On Selection: 13
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
* Total Citation Counts Rankings
Rankings
100,804
369
33
Ranking Based On Selection: 14
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
* Total Citation Counts Rankings
Rankings
157,346
638
9
Ranking Based On Selection: 15
Bharti Odhav
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,512
3,166
0.486
* Total Citation Counts Rankings
Rankings
168,217
691
159
Ranking Based On Selection: 16
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
* Total Citation Counts Rankings
Rankings
171,607
711
63
Ranking Based On Selection: 17
Richard Beckett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,977
2,197
0.368
* Total Citation Counts Rankings
Rankings
177,894
741
1
Ranking Based On Selection: 18
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
* Total Citation Counts Rankings
Rankings
180,929
760
65
Ranking Based On Selection: 19
Marnie E. Light
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,668
2,099
0.370
* Total Citation Counts Rankings
Rankings
182,229
766
17
Ranking Based On Selection: 20
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
* Total Citation Counts Rankings
Rankings
191,192
815
72
Ranking Based On Selection: 21
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
* Total Citation Counts Rankings
Rankings
197,971
843
112
Ranking Based On Selection: 22
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
* Total Citation Counts Rankings
Rankings
237,829
1,035
127
Ranking Based On Selection: 23
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
* Total Citation Counts Rankings
Rankings
253,334
1,111
24
Ranking Based On Selection: 24
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
* Total Citation Counts Rankings
Rankings
283,024
1,255
108
Ranking Based On Selection: 25
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