University, Subject, Country, Region, World
Japan 266 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Plant Science
Plant Biology
Functional Genomics
Metabolomics
Plant Biochemistry
Metrics
H-Index
i10 Index
Citation Counts
132
656
71,041
* Total H IndexRankings
Ranking Based On Selection: 2
Plant Mineral Nutrition
Transporter
Mineral Stress
Metrics
H-Index
i10 Index
Citation Counts
127
314
61,416
* Total H IndexRankings
Ranking Based On Selection: 3
Plant Science
Phytohormones
Nitrogen Nutrition
Plant Biology
Metrics
H-Index
i10 Index
Citation Counts
110
269
45,150
* Total H IndexRankings
Ranking Based On Selection: 4
Plant physiology
Plant Biology
Plant nutrition
Agricultural science
rice
Metrics
H-Index
i10 Index
Citation Counts
85
154
30,251
* Total H IndexRankings
Ranking Based On Selection: 5
Plant Biology
Metrics
H-Index
i10 Index
Citation Counts
79
313
27,420
* Total H IndexRankings
Ranking Based On Selection: 6
Plant evolution and development
Metrics
H-Index
i10 Index
Citation Counts
67
151
16,318
* Total H IndexRankings
Ranking Based On Selection: 7
Plant lipids
Plant hormones
Microalgae
Colonization of land by plants
Biofuel
Metrics
H-Index
i10 Index
Citation Counts
66
165
15,206
* Total H IndexRankings
Ranking Based On Selection: 8
plant abiotic stress tolerance
Metrics
H-Index
i10 Index
Citation Counts
63
134
14,062
* Total H IndexRankings
Ranking Based On Selection: 9
Plant biology
Fruit development
Tomato
Genome editing
Plant breeding
Metrics
H-Index
i10 Index
Citation Counts
63
220
13,964
* Total H IndexRankings
Ranking Based On Selection: 10
Plant Genome
Bioinformatics
Metrics
H-Index
i10 Index
Citation Counts
61
98
18,350
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* Total H IndexRankings
Ranking Based On Selection: 11
Plant ecology
Plant ecophysiology
Plant physiological ecology
Evolution
Global Change
Metrics
H-Index
i10 Index
Citation Counts
60
134
26,919
* Total H IndexRankings
Ranking Based On Selection: 12
plant functional ecology
tropical forest ecology and conservation
Metrics
H-Index
i10 Index
Citation Counts
59
104
19,232
* Total H IndexRankings
Ranking Based On Selection: 13
Plant metabolism
Metrics
H-Index
i10 Index
Citation Counts
58
190
13,842
* Total H IndexRankings
Ranking Based On Selection: 14
plant secondary metabolism
cytochrome P450
dioxygenase
steroid
strigolactone
Metrics
H-Index
i10 Index
Citation Counts
57
123
13,581
* Total H IndexRankings
Ranking Based On Selection: 15
Virology
Metrics
H-Index
i10 Index
Citation Counts
55
139
10,297
* Total H IndexRankings
Ranking Based On Selection: 16
plant biology
plant physiology
photosynthesis
carbon dioxide
Metrics
H-Index
i10 Index
Citation Counts
55
120
15,269
* Total H IndexRankings
Ranking Based On Selection: 17
plant science
imaging
remote sensing
environmental science
agricultural science
Metrics
H-Index
i10 Index
Citation Counts
54
140
11,078
* Total H IndexRankings
Ranking Based On Selection: 18
Plant immunology
Metrics
H-Index
i10 Index
Citation Counts
54
93
11,708
* Total H IndexRankings
Ranking Based On Selection: 19
plant biology
genomics
Metrics
H-Index
i10 Index
Citation Counts
53
85
19,049
* Total H IndexRankings
Ranking Based On Selection: 20
Plant Molecular Biology
Metrics
H-Index
i10 Index
Citation Counts
51
82
21,376
* Total H IndexRankings
Ranking Based On Selection: 21
Plant stress response
Plant hormone response
Singnal transduction
Metrics
H-Index
i10 Index
Citation Counts
51
75
14,814
* Total H IndexRankings
Ranking Based On Selection: 22
Plant Science
Cold acclimation
Freezing tolerance
Plasma membrane
Proteomics
Metrics
H-Index
i10 Index
Citation Counts
51
106
10,634
* Total H IndexRankings
Ranking Based On Selection: 23
Plant physiology
Metrics
H-Index
i10 Index
Citation Counts
50
91
8,017
* Total H IndexRankings
Ranking Based On Selection: 24
plant physiology
Metrics
H-Index
i10 Index
Citation Counts
50
84
9,676
* Total H IndexRankings
Ranking Based On Selection: 25
Plant Genetics and Breeding
Metrics
H-Index
i10 Index
Citation Counts
49
153
7,032
Plant Science
Plant Biology
Functional Genomics
Metabolomics
Plant Biochemistry
Jian Feng Ma
Okayama University
Okayama, Japan
Metrics
H-Index
i10-Index
Citation Counts
127
314
61,416
Plant Mineral Nutrition
Transporter
Mineral Stress
Hitoshi Sakakibara
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
110
269
45,150
Plant Science
Phytohormones
Nitrogen Nutrition
Plant Biology
Naoki Yamaji|山地直樹
Okayama University
Okayama, Japan
Metrics
H-Index
i10-Index
Citation Counts
85
154
30,251
Plant physiology
Plant Biology
Plant nutrition
Agricultural science
rice
Toru Fujiwara
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
79
313
27,420
Hasebe Mitsuyasu
Metrics
H-Index
i10-Index
Citation Counts
67
151
16,318
Plant evolution and development
Hiroyuki Ohta
Metrics
H-Index
i10-Index
Citation Counts
66
165
15,206
Plant lipids
Plant hormones
Microalgae
Colonization of land by plants
Biofuel
Mikio Nakazono
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
63
134
14,062
Hiroshi Ezura
University of Tsukuba
Tsukuba, Japan
Metrics
H-Index
i10-Index
Citation Counts
63
220
13,964
Plant biology
Fruit development
Tomato
Genome editing
Plant breeding
Akio Miyao
Metrics
H-Index
i10-Index
Citation Counts
61
98
18,350
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Kouki Hikosaka
Tohoku University
Sendai, Japan
Metrics
H-Index
i10-Index
Citation Counts
60
134
26,919
Plant ecology
Plant ecophysiology
Plant physiological ecology
Evolution
Global Change
Kaoru Kitajima
Kyoto University
Kyoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
59
104
19,232
plant functional ecology
tropical forest ecology and conservation
Hiroshi Ashihara
Ochanomizu University
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
58
190
13,842
Masaharu Mizutani
Kobe University
Kobe, Japan
Metrics
H-Index
i10-Index
Citation Counts
57
123
13,581
plant secondary metabolism
cytochrome P450
dioxygenase
steroid
strigolactone
Nobuhiro Suzuki
Okayama University
Okayama, Japan
Metrics
H-Index
i10-Index
Citation Counts
55
139
10,297
Hideya Fukuzawa
Kyoto University
Kyoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
55
120
15,269
plant biology
plant physiology
photosynthesis
carbon dioxide
Kenji Omasa
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
54
140
11,078
plant science
imaging
remote sensing
environmental science
agricultural science
Hirofumi Yoshioka
Nagoya University
Nagoya, Japan
Metrics
H-Index
i10-Index
Citation Counts
54
93
11,708
Tetsuya Sakurai
Kochi University
Kochi, Japan
Metrics
H-Index
i10-Index
Citation Counts
53
85
19,049
Nakashima Kazuo
Metrics
H-Index
i10-Index
Citation Counts
51
82
21,376
Takashi Hirayama
Okayama University
Okayama, Japan
Metrics
H-Index
i10-Index
Citation Counts
51
75
14,814
Plant stress response
Plant hormone response
Singnal transduction
Matsuo Uemura
Iwate University
Morioka, Japan
Metrics
H-Index
i10-Index
Citation Counts
51
106
10,634
Plant Science
Cold acclimation
Freezing tolerance
Plasma membrane
Proteomics
Yoichiro Fukao
Ritsumeikan University
Kyoto, Japan
Metrics
H-Index
i10-Index
Citation Counts
50
91
8,017
Kazuhiko Nishitani
Kanagawa University
Yokohama, Japan
Metrics
H-Index
i10-Index
Citation Counts
50
84
9,676
Hisashi Tsujimoto
Tottori University
Tottori, Japan
Metrics
H-Index
i10-Index
Citation Counts
49
153
7,032