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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 53 1796 1647 58 58 240 10381

Toshihiro Hasegawa publications per year

The chart shows the history of publications by Toshihiro Hasegawa between 1991 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toshihiro Hasegawa published across 36 years, from 1991 to 2026, averaging 7.5 papers a year. Output peaked at 20 publications in 2008. 12 of the 270 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1991 to 2026. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2008. 1991: 1 publication 1992: 0 publications 1993: 0 publications 1994: 2 publications 1995: 0 publications 1996: 2 publications 1997: 1 publication 1998: 2 publications 1999: 3 publications 2000: 3 publications 2001: 3 publications 2002: 2 publications 2003: 3 publications 2004: 3 publications 2005: 8 publications 2006: 5 publications 2007: 10 publications 2008: 20 publications 2009: 11 publications 2010: 13 publications 2011: 15 publications 2012: 9 publications 2013: 12 publications 2014: 17 publications 2015: 13 publications 2016: 11 publications 2017: 9 publications 2018: 8 publications 2019: 11 publications 2020: 11 publications 2021: 13 publications 2022: 16 publications 2023: 11 publications 2024: 10 publications 2025: 11 publications 2026: 1 publication
1991 2026

270 publications in total across all disciplines

View publications per year as a table
Toshihiro Hasegawa: publications per year, 1991 to 2026
Year Publications
1991 1
1992 0
1993 0
1994 2
1995 0
1996 2
1997 1
1998 2
1999 3
2000 3
2001 3
2002 2
2003 3
2004 3
2005 8
2006 5
2007 10
2008 20
2009 11
2010 13
2011 15
2012 9
2013 12
2014 17
2015 13
2016 11
2017 9
2018 8
2019 11
2020 11
2021 13
2022 16
2023 11
2024 10
2025 11
2026 1
Total 270
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Toshihiro Hasegawa publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Toshihiro Hasegawa sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 236–240 publications, is where this scientist sits. 36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36–40 publications 467+

This scientist: 240 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64 240
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
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Toshihiro Hasegawa D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Toshihiro Hasegawa sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 53 D-Index, is where this scientist sits. 30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 53 D-Index — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102 53
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
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Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Agronomy

Toshihiro Hasegawa mainly focuses on Agronomy, Oryza sativa, Animal science, Photosynthesis and Carbon dioxide. Agronomy and Canopy are commonly linked in his work. His research in Oryza sativa intersects with topics in Grain yield, Poaceae and Cultivar.

His Cultivar study integrates concerns from other disciplines, such as Japonica, Tiller and Seedling. His Botany research extends to Animal science, which is thematically connected. Toshihiro Hasegawa works mostly in the field of Carbon dioxide, limiting it down to topics relating to Respiration and, in certain cases, Carbon assimilation.

His most cited work include:

  • Increasing CO2 threatens human nutrition (572 citations)
  • Soil organic carbon stocks in China and changes from 1980s to 2000s (255 citations)
  • Uncertainties in Predicting Rice Yield by Current Crop Models Under a Wide Range of Climatic Conditions (232 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Agronomy, Oryza sativa, Paddy field, Cultivar and Horticulture. His work deals with themes such as Photosynthesis, Canopy and Climate change, which intersect with Agronomy. In his study, which falls under the umbrella issue of Oryza sativa, Growing season is strongly linked to Carbon dioxide.

His Paddy field research includes themes of Atmosphere, Soil test, Incubation, Methane and Environmental chemistry. Toshihiro Hasegawa has included themes like Japonica, Yield and Sowing in his Cultivar study. As a part of the same scientific family, he mostly works in the field of Horticulture, focusing on Botany and, on occasion, Animal science.

He most often published in these fields:

  • Agronomy (58.57%)
  • Oryza sativa (25.24%)
  • Paddy field (20.48%)

What were the highlights of his more recent work (between 2016-2021)?

  • Agronomy (58.57%)
  • Climate change (14.29%)
  • Oryza sativa (25.24%)

In recent papers he was focusing on the following fields of study:

His primary scientific interests are in Agronomy, Climate change, Oryza sativa, Horticulture and Cultivar. His work on Grain quality, Crop and Growing season as part of general Agronomy research is often related to Water temperature, thus linking different fields of science. His Climate change research incorporates elements of Canopy, Paddy field, Environmental resource management and Yield.

His Oryza sativa study combines topics in areas such as Panicle, Livestock and Grain yield. He combines subjects such as Pollen, Pollination, Sterility and Human fertilization with his study of Horticulture. His Cultivar research is multidisciplinary, incorporating perspectives in Japonica and High yielding.

Between 2016 and 2021, his most popular works were:

  • Quantitative trait loci for large sink capacity enhance rice grain yield under free-air CO2 enrichment conditions. (28 citations)
  • Increasing canopy photosynthesis in rice can be achieved without a large increase in water use–a model based on free-air CO2 enrichment (26 citations)
  • Combined drought and heat stress impact during flowering and grain filling in contrasting rice cultivars grown under field conditions (23 citations)

In his most recent research, the most cited papers focused on:

  • Ecology
  • Botany
  • Agriculture

His scientific interests lie mostly in Cultivar, Oryza sativa, Agronomy, Horticulture and Climate change. The concepts of his Cultivar study are interwoven with issues in Japonica and Co2 concentration. His studies deal with areas such as Pollination, Sterility, Grain yield, Crop yield and Stamen as well as Oryza sativa.

He performs multidisciplinary study in Agronomy and Distribution in his work. His work on Yield as part of his general Horticulture study is frequently connected to Rice straw, Mineral deficiency and Soluble oxalate, thereby bridging the divide between different branches of science. The Climate change study combines topics in areas such as Soil science, Scale and Yield.

Best Publications

  • Increasing CO2 threatens human nutrition.

    Samuel S. Myers;Antonella Zanobetti;Itai Kloog;Peter Huybers

  • Soil organic carbon stocks in China and changes from 1980s to 2000s

    Zubin Xie;Jianguo Zhu;Gang Liu;Georg Cadisch

  • Uncertainties in predicting rice yield by current crop models under a wide range of climatic conditions

    Tao Li;Toshihiro Hasegawa;Xinyou Yin;Yan Zhu

  • Rice cultivar responses to elevated CO2 at two free-air CO2 enrichment (FACE) sites in Japan

    Toshihiro Hasegawa;Hidemitsu Sakai;Takeshi Tokida;Hirofumi Nakamura

  • Interactions of elevated [CO2] and night temperature on rice growth and yield

    Weiguo Cheng;Hidemitsu Sakai;Kazuyuki Yagi;Toshihiro Hasegawa

  • Rice morphogenesis and plant architecture: measurement, specification and the reconstruction of structural development by 3D architectural modelling.

    Tomonari Watanabe;Jim S. Hanan;Peter M. Room;Toshihiro Hasegawa

  • Response of growth and grain yield in paddy rice to cool water at different growth stages

    Hiroyuki Shimono;Toshihiro Hasegawa;Kazuto Iwama

  • Revising a process‐based biogeochemistry model (DNDC) to simulate methane emission from rice paddy fields under various residue management and fertilizer regimes

    Tamon Fumoto;Kazuhiko Kobayashi;Changsheng Li;Kazuyuki Yagi

  • A global dataset for the projected impacts of climate change on four major crops

    Unknown

  • Methane and soil CO2 production from current-season photosynthates in a rice paddy exposed to elevated CO2 concentration and soil temperature

    Takeshi Tokida;Minaco Adachi;Weiguo Cheng;Yasuhiro Nakajima

  • Genotypic variation in rice yield enhancement by elevated CO2 relates to growth before heading, and not to maturity group

    Hiroyuki Shimono;Masumi Okada;Yasuhiro Yamakawa;Hirofumi Nakamura

  • Effects of free-air CO 2 enrichment (FACE) and soil warming on CH 4 emission from a rice paddy field: impact assessment and stoichiometric evaluation

    T. Tokida;T. Fumoto;W. Cheng;T. Matsunami

  • Stability of rice pollination in the field under hot and dry conditions in the Riverina Region of New South Wales, Australia.

    Tsutomu Matsui;Kazuhiro Kobayasi;Mayumi Yoshimoto;Toshihiro Hasegawa

  • Response of Spikelet Number to Plant Nitrogen Concentration and Dry Weight in Paddy Rice

    Toshihiro Hasegawa;Yasuo Koroda;No'am G. Seligman;Takeshi Horie

  • Toward integration of genomic selection with crop modelling: the development of an integrated approach to predicting rice heading dates.

    Akio Onogi;Maya Watanabe;Toshihiro Mochizuki;Takeshi Hayashi

  • Rice grain yield and quality responses to free‐air CO2 enrichment combined with soil and water warming

    Yasuhiro Usui;Hidemitsu Sakai;Takeshi Tokida;Hirofumi Nakamura

  • Heat-Induced Floret Sterility of Hybrid Rice (Oryza sativa L.) Cultivars under Humid and Low Wind Conditions in the Field of Jianghan Basin, China

    Xiaohai Tian;Tsutomu Matsui;Shouhua Li;Mayumi Yoshimoto

  • Combined effects of elevated [CO2] and high night temperature on carbon assimilation, nitrogen absorption, and the allocations of C and N by rice (Oryza sativa L.)

    Weiguo Cheng;Hidemitsu Sakai;Kazuyuki Yagi;Toshihiro Hasegawa

  • Impacts of elevated atmospheric CO2 on nutrient content of important food crops

    Lee H. Dietterich;Antonella Zanobetti;Itai Kloog;Peter Huybers

  • Enhancement of rice canopy carbon gain by elevated CO2 is sensitive to growth stage and leaf nitrogen concentration

    H. Sakai;T. Hasegawa;K. Kobayashi

  • Responses of leaf photosynthesis and plant water status in rice to low water temperature at different growth stages

    Hiroyuki Shimono;Toshihiro Hasegawa;Shigeto Fujimura;Kazuto Iwama

Frequent Co-Authors

Hidemitsu Sakai
Hidemitsu Sakai National Agriculture and Food Research Organization
Takeshi Tokida
Takeshi Tokida National Agriculture and Food Research Organization
Masumi Okada
Masumi Okada Iwate University
Kazuhiko Kobayashi
Kazuhiko Kobayashi University of Tokyo
Kazuyuki Yagi
Kazuyuki Yagi National Agriculture and Food Research Organization
Motohiko Kondo
Motohiko Kondo Nagoya University
Russell F. Reinke
Russell F. Reinke International Rice Research Institute
Kazuyuki Inubushi
Kazuyuki Inubushi Chiba University
Takeshi Horie
Takeshi Horie Kyoto University
Mitsuru Osaki
Mitsuru Osaki Hokkaido University

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