Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
agrobiodiversity & pteridology
agroforestry & TOF
conservation biology
reproductive biology
tree domestication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,336
1,528
0.654
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Climate Change Adaptation
Biology and Management of Invasive Alien Species
Herbicide-Resistance in Weeds
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,167
1,345
0.621
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Agriculture
Plant Sciences
Plant Physiology
Agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,381
1,043
0.438
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Agronomy
Crop Physiology
Climate Change Adaptation and Mitigation
Agroforestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,936
992
0.512
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Agronomy
Plant Nutrition
Horticulture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
775
491
0.634
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Plant Physiology
Agronomy
Tea
Plantation crops
Spice crops
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
662
365
0.551
Dkng Pushpakumara Gamini Pushpakumara|G Pushpakumara
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,336
1,528
0.654
agrobiodiversity & pteridology
agroforestry & TOF
conservation biology
reproductive biology
tree domestication
Buddhi Marambe
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,167
1,345
0.621
Climate Change Adaptation
Biology and Management of Invasive Alien Species
Herbicide-Resistance in Weeds
Wajm De Costa
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,381
1,043
0.438
Agriculture
Plant Sciences
Plant Physiology
Agronomy
Sarath P Nissanka
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,936
992
0.512
Agronomy
Crop Physiology
Climate Change Adaptation and Mitigation
Agroforestry
Ramya Malkanthi Fonseka
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
775
491
0.634
Agronomy
Plant Nutrition
Horticulture
Janaki Mohotti
University of Peradeniya
Sri Lanka, Sri Lanka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
662
365
0.551
Plant Physiology
Agronomy
Tea
Plantation crops
Spice crops