Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
11,059
Country Rank
5,273
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Knapp Alan](https://cdn.adscientificindex.com/pictures/ec/910193.jpg)
Plant Ecology
Ecosystem Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,920
17,623
0.384
* Total Citation Counts Rankings
World Rank
33,013
Country Rank
14,935
Institution Rank : 44
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Jan E Leach](https://cdn.adscientificindex.com/pictures/f8/910230.jpg)
Plant disease and resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,694
9,932
0.438
* Total Citation Counts Rankings
World Rank
65,942
Country Rank
27,804
Institution Rank : 103
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![GA Peterson](https://cdn.adscientificindex.com/pictures/6c/910257.jpg)
Soil science
agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,628
3,218
0.236
* Total Citation Counts Rankings
World Rank
135,387
Country Rank
51,934
Institution Rank : 197
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Eugene F Kelly](/user/assets/images/profile/no-profile-photo.png)
Soil Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,362
2,327
0.316
* Total Citation Counts Rankings
World Rank
137,605
Country Rank
52,637
Institution Rank : 204
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Laura G Perry](https://cdn.adscientificindex.com/pictures/99/910383.jpg)
plant community ecology
restoration ecology
invasion ecology
riparian ecology
wetland ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,254
3,047
0.420
* Total Citation Counts Rankings
World Rank
157,465
Country Rank
59,053
Institution Rank : 233
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Cynthia S Brown](/user/assets/images/profile/no-profile-photo.png)
Plant Ecology
Invasion Biology
Restoration Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,377
3,335
0.523
* Total Citation Counts Rankings
World Rank
178,205
Country Rank
65,508
Institution Rank : 263
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Jacqueline M Chaparro](/user/assets/images/profile/no-profile-photo.png)
Plant Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
4,056
0.720
* Total Citation Counts Rankings
World Rank
221,726
Country Rank
78,653
Institution Rank : 317
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Barbarick K](/user/assets/images/profile/no-profile-photo.png)
soil science
environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,493
1,108
0.247
* Total Citation Counts Rankings
World Rank
244,026
Country Rank
85,314
Institution Rank : 341
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Scott J Nissen](/user/assets/images/profile/no-profile-photo.png)
Agriculture
Weed Science
Aquatic Plant Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,051
1,148
0.283
* Total Citation Counts Rankings
World Rank
262,460
Country Rank
90,598
Institution Rank : 366
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Paul J Ode](https://cdn.adscientificindex.com/pictures/09/910532.jpg)
plant insect interactions
parasitoids
host-parasitoid interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,734
1,505
0.403
* Total Citation Counts Rankings
World Rank
267,887
Country Rank
92,165
Institution Rank : 372
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Cristiana T Argueso](/user/assets/images/profile/no-profile-photo.png)
Plant hormones
Plant immunity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
2,201
0.604
* Total Citation Counts Rankings
World Rank
309,861
Country Rank
104,308
Institution Rank : 420
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Troy Ocheltree](https://cdn.adscientificindex.com/pictures/99/910656.jpg)
Plant Ecophysiology
Plant Growth Strategies
Drought Resistance
Grass Hydraulics
Leaf Anatomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,072
2,060
0.671
* Total Citation Counts Rankings
World Rank
317,996
Country Rank
106,552
Institution Rank : 433
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Jason Corwin](https://cdn.adscientificindex.com/pictures/e7/910613.jpg)
Plant Microbe Interactions
Chemical Ecology
Quantitative Geneics
Systems Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,978
1,711
0.575
* Total Citation Counts Rankings
World Rank
332,483
Country Rank
110,678
Institution Rank : 449
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Esten Mason](/user/assets/images/profile/no-profile-photo.png)
Plant Breeding and Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,819
1,926
0.683
* Total Citation Counts Rankings
World Rank
333,469
Country Rank
110,955
Institution Rank : 451
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Stephen Pearce](https://cdn.adscientificindex.com/pictures/55/910658.jpg)
Plant science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,809
1,745
0.621
* Total Citation Counts Rankings
World Rank
342,915
Country Rank
113,538
Institution Rank : 461
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Karl Ravet](https://cdn.adscientificindex.com/pictures/29/910630.jpg)
Plant Biology and Crop Improvement.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,714
1,342
0.494
* Total Citation Counts Rankings
World Rank
457,696
Country Rank
145,061
Institution Rank : 582
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Vamsi Nalam](/user/assets/images/profile/no-profile-photo.png)
Plant Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
1,110
0.601
* Total Citation Counts Rankings
World Rank
483,954
Country Rank
152,084
Institution Rank : 602
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Ken Barbarick](/user/assets/images/profile/no-profile-photo.png)
Soil Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,702
402
0.236
* Total Citation Counts Rankings
World Rank
713,692
Country Rank
211,235
Institution Rank : 782
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Susan Latshaw](/user/assets/images/profile/no-profile-photo.png)
plant breeding
genomics
nitrogen use efficiency
grain yield
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
884
331
0.374
* Total Citation Counts Rankings
World Rank
722,547
Country Rank
213,370
Institution Rank : 789
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Paul Tanger](https://cdn.adscientificindex.com/pictures/52/910942.jpg)
plant biology
bioenergy
genetics
plant cell wall
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
862
490
0.568
* Total Citation Counts Rankings
World Rank
765,102
Country Rank
223,424
Institution Rank : 810
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Kevin J Morey](https://cdn.adscientificindex.com/pictures/70/910964.jpg)
Plant Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
765
406
0.531
* Total Citation Counts Rankings
World Rank
832,533
Country Rank
238,565
Institution Rank : 844
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Richard C Trippe III](https://cdn.adscientificindex.com/pictures/cf/911071.jpg)
plant biology
molecular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
628
381
0.607
* Total Citation Counts Rankings
World Rank
865,491
Country Rank
245,725
Institution Rank : 862
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Jorge R Ibarra Caballero](/user/assets/images/profile/no-profile-photo.png)
Plant Pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
283
0.499
* Total Citation Counts Rankings
World Rank
871,544
Country Rank
247,034
Institution Rank : 865
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Kevin Lehner](https://cdn.adscientificindex.com/pictures/40/911079.jpg)
Plant Biology
Developmental Biology
Complex Trait Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
556
361
0.649
* Total Citation Counts Rankings
World Rank
933,826
Country Rank
259,680
Institution Rank : 884
![](https://cdn.adscientificindex.com/logos/1726.jpg)
![United States](/flags/us.png)
![Justin Dohn](https://cdn.adscientificindex.com/pictures/18/911081.jpg)
Plant community ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
452
228
0.504
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
11,059
![United States](/flags/us.png)
5,273
![](https://cdn.adscientificindex.com/logos/1726.jpg)
15
Knapp Alan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,920
17,623
0.384
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Ecology
Ecosystem Ecology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
33,013
![United States](/flags/us.png)
14,935
![](https://cdn.adscientificindex.com/logos/1726.jpg)
44
Jan E Leach
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,694
9,932
0.438
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
65,942
![United States](/flags/us.png)
27,804
![](https://cdn.adscientificindex.com/logos/1726.jpg)
103
GA Peterson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,628
3,218
0.236
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Soil science
agronomy
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
135,387
![United States](/flags/us.png)
51,934
![](https://cdn.adscientificindex.com/logos/1726.jpg)
197
Eugene F Kelly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,362
2,327
0.316
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
137,605
![United States](/flags/us.png)
52,637
![](https://cdn.adscientificindex.com/logos/1726.jpg)
204
Laura G Perry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,254
3,047
0.420
![](https://cdn.adscientificindex.com/logos/1726.jpg)
plant community ecology
restoration ecology
invasion ecology
riparian ecology
wetland ecology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
157,465
![United States](/flags/us.png)
59,053
![](https://cdn.adscientificindex.com/logos/1726.jpg)
233
Cynthia S Brown
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,377
3,335
0.523
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Ecology
Invasion Biology
Restoration Ecology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
178,205
![United States](/flags/us.png)
65,508
![](https://cdn.adscientificindex.com/logos/1726.jpg)
263
Jacqueline M Chaparro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,637
4,056
0.720
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
221,726
![United States](/flags/us.png)
78,653
![](https://cdn.adscientificindex.com/logos/1726.jpg)
317
Barbarick K
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,493
1,108
0.247
![](https://cdn.adscientificindex.com/logos/1726.jpg)
soil science
environmental science
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
244,026
![United States](/flags/us.png)
85,314
![](https://cdn.adscientificindex.com/logos/1726.jpg)
341
Scott J Nissen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,051
1,148
0.283
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Agriculture
Weed Science
Aquatic Plant Management
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
262,460
![United States](/flags/us.png)
90,598
![](https://cdn.adscientificindex.com/logos/1726.jpg)
366
Paul J Ode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,734
1,505
0.403
![](https://cdn.adscientificindex.com/logos/1726.jpg)
plant insect interactions
parasitoids
host-parasitoid interactions
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* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
267,887
![United States](/flags/us.png)
92,165
![](https://cdn.adscientificindex.com/logos/1726.jpg)
372
Cristiana T Argueso
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,646
2,201
0.604
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
309,861
![United States](/flags/us.png)
104,308
![](https://cdn.adscientificindex.com/logos/1726.jpg)
420
Troy Ocheltree
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,072
2,060
0.671
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Ecophysiology
Plant Growth Strategies
Drought Resistance
Grass Hydraulics
Leaf Anatomy
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
317,996
![United States](/flags/us.png)
106,552
![](https://cdn.adscientificindex.com/logos/1726.jpg)
433
Jason Corwin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,978
1,711
0.575
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Microbe Interactions
Chemical Ecology
Quantitative Geneics
Systems Biology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
332,483
![United States](/flags/us.png)
110,678
![](https://cdn.adscientificindex.com/logos/1726.jpg)
449
Esten Mason
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,819
1,926
0.683
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
333,469
![United States](/flags/us.png)
110,955
![](https://cdn.adscientificindex.com/logos/1726.jpg)
451
Stephen Pearce
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,809
1,745
0.621
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
342,915
![United States](/flags/us.png)
113,538
![](https://cdn.adscientificindex.com/logos/1726.jpg)
461
Karl Ravet
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,714
1,342
0.494
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Biology and Crop Improvement.
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
457,696
![United States](/flags/us.png)
145,061
![](https://cdn.adscientificindex.com/logos/1726.jpg)
582
Vamsi Nalam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
1,110
0.601
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
483,954
![United States](/flags/us.png)
152,084
![](https://cdn.adscientificindex.com/logos/1726.jpg)
602
Ken Barbarick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,702
402
0.236
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
713,692
![United States](/flags/us.png)
211,235
![](https://cdn.adscientificindex.com/logos/1726.jpg)
782
Susan Latshaw
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
884
331
0.374
![](https://cdn.adscientificindex.com/logos/1726.jpg)
plant breeding
genomics
nitrogen use efficiency
grain yield
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
722,547
![United States](/flags/us.png)
213,370
![](https://cdn.adscientificindex.com/logos/1726.jpg)
789
Paul Tanger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
862
490
0.568
![](https://cdn.adscientificindex.com/logos/1726.jpg)
plant biology
bioenergy
genetics
plant cell wall
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
765,102
![United States](/flags/us.png)
223,424
![](https://cdn.adscientificindex.com/logos/1726.jpg)
810
Kevin J Morey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
765
406
0.531
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
832,533
![United States](/flags/us.png)
238,565
![](https://cdn.adscientificindex.com/logos/1726.jpg)
844
Richard C Trippe III
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
628
381
0.607
![](https://cdn.adscientificindex.com/logos/1726.jpg)
plant biology
molecular biology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
865,491
![United States](/flags/us.png)
245,725
![](https://cdn.adscientificindex.com/logos/1726.jpg)
862
Jorge R Ibarra Caballero
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
283
0.499
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
871,544
![United States](/flags/us.png)
247,034
![](https://cdn.adscientificindex.com/logos/1726.jpg)
865
Kevin Lehner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
556
361
0.649
![](https://cdn.adscientificindex.com/logos/1726.jpg)
Plant Biology
Developmental Biology
Complex Trait Genetics
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
933,826
![United States](/flags/us.png)
259,680
![](https://cdn.adscientificindex.com/logos/1726.jpg)
884
Justin Dohn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
452
228
0.504