World's Best Scientists 2026 revealed!
Kazuhiko Kobayashi

Kazuhiko Kobayashi

D-Index & Metrics

Plant Science and Agronomy

D-Index
57
Citations
12417
World Ranking
1428
National Ranking
42

Kazuhiko Kobayashi 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 Kazuhiko Kobayashi sits on this spectrum.

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 publications 467+

This scientist: 209 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Kazuhiko Kobayashi 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 Kazuhiko Kobayashi sits on this spectrum.

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: 57 D-Index — 78th percentile

78% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Cancer
  • Ecology

His primary scientific interests are in Agronomy, Poaceae, Cultivar, Ozone and Crop yield. His study in Tiller, Crop, Panicle, Dry matter and Growing season falls under the purview of Agronomy. His work carried out in the field of Poaceae brings together such families of science as Photosynthesis, Phytotoxicity and Fumigation.

Kazuhiko Kobayashi combines subjects such as Carbon dioxide, Animal science and Chlorophyll a with his study of Photosynthesis. In his work, Winter wheat, Field conditions, Ozone concentration and Pollution is strongly intertwined with Yield, which is a subfield of Cultivar. His work on Tropospheric ozone as part of general Ozone research is frequently linked to East Asia, thereby connecting diverse disciplines of science.

His most cited work include:

  • Comparing Simulated and Measured Values Using Mean Squared Deviation and its Components (417 citations)
  • Updated overall survival results from a randomized phase III trial comparing gefitinib with carboplatin–paclitaxel for chemo-naïve non-small cell lung cancer with sensitive EGFR gene mutations (NEJ002) (344 citations)
  • Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta‐analysis (271 citations)

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

Agronomy, Internal medicine, Ozone, Oncology and Paddy field are his primary areas of study. Kazuhiko Kobayashi interconnects Photosynthesis, Carbon dioxide and Biomass in the investigation of issues within Agronomy. His Internal medicine study combines topics from a wide range of disciplines, such as Gastroenterology and Surgery.

His Ozone study incorporates themes from Atmospheric sciences, Pollutant and Stomatal conductance. His study in Paddy field is interdisciplinary in nature, drawing from both Methane and Growing season. His studies in Poaceae integrate themes in fields like Panicle and Crop yield.

He most often published in these fields:

  • Agronomy (31.40%)
  • Internal medicine (21.84%)
  • Ozone (15.70%)

What were the highlights of his more recent work (between 2017-2021)?

  • Internal medicine (21.84%)
  • Agronomy (31.40%)
  • Oncology (11.60%)

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

His primary areas of investigation include Internal medicine, Agronomy, Oncology, Ozone and Climate change. His Lung cancer, Phases of clinical research, Normal control and Predictive marker study, which is part of a larger body of work in Internal medicine, is frequently linked to Lower urinary tract symptoms, bridging the gap between disciplines. His studies deal with areas such as Rice farming and Organic farming as well as Agronomy.

His Ozone study integrates concerns from other disciplines, such as Pollutant, Atmospheric sciences, Stomatal conductance, Crop yield and Vegetation. His biological study spans a wide range of topics, including Flux, Cultivar and Cell wall. He has included themes like Agriculture, Tropospheric ozone and Yield in his Climate change study.

Between 2017 and 2021, his most popular works were:

  • Tropospheric Ozone Assessment Report: Present-day tropospheric ozone distribution and trends relevant to vegetation (112 citations)
  • Carbon dioxide (CO2) levels this century will alter the protein, micronutrients, and vitamin content of rice grains with potential health consequences for the poorest rice-dependent countries. (104 citations)
  • Tropospheric ozone assessment report: Global ozone metrics for climate change, human health, and crop/ecosystem research (96 citations)

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

  • Internal medicine
  • Cancer
  • Ecology

His scientific interests lie mostly in Ozone, Agronomy, Climate change, Stomatal conductance and Tropospheric ozone. His Ozone study combines topics in areas such as Crop yield, Atmospheric sciences, Pollutant and Prunus. His Agronomy research integrates issues from Human nutrition and Agricultural chemistry.

His Stomatal conductance research incorporates elements of Flux, Cell wall and Yield. His Tropospheric ozone research incorporates themes from Vegetation and Food security. Kazuhiko Kobayashi focuses mostly in the field of Cultivar, narrowing it down to topics relating to Photosynthesis and, in certain cases, Apoplast and Horticulture.

Best Publications

  • Comparing Simulated and Measured Values Using Mean Squared Deviation and its Components

    Kazuhiko Kobayashi;Moin Us Salam

  • Tropospheric Ozone Assessment Report: Present-day tropospheric ozone distribution and trends relevant to vegetation

    Gina Mills;Håkan Pleijel;Christopher S. Malley;Baerbel Sinha

  • Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticum aestivum L.): a meta‐analysis

    Zhaozhong Feng;Zhaozhong Feng;Kazuhiko Kobayashi;Elizabeth A. Ainsworth

  • Carbon dioxide (CO2) levels this century will alter the protein, micronutrients, and vitamin content of rice grains with potential health consequences for the poorest rice-dependent countries.

    Chunwu Zhu;Kazuhiko Kobayashi;Irakli Loladze;Jianguo Zhu

  • Tropospheric ozone assessment report: Global ozone metrics for climate change, human health, and crop/ecosystem research

    Allen S. Lefohn;Christopher S. Malley;Luther Smith;Benjamin Wells

  • Assessing the impacts of current and future concentrations of surface ozone on crop yield with meta-analysis

    Zhaozhong Feng;Zhaozhong Feng;Kazuhiko Kobayashi

  • A comparison of North American and Asian exposure-response data for ozone effects on crop yields.

    L.D. Emberson;L.D. Emberson;P. Büker;M.R. Ashmore;M.R. Ashmore;G. Mills

  • Ozone pollution threatens the production of major staple crops in East Asia

    Unknown

  • Ozone pollution will compromise efforts to increase global wheat production.

    Gina Mills;Katrina Sharps;David Simpson;David Simpson;Håkan Pleijel

  • Growth and nitrogen uptake of CO2‐enriched rice under field conditions

    H. Y. Kim;M. Lieffering;S. Miura;K. Kobayashi

  • Seasonal changes in the effects of elevated CO2 on rice at three levels of nitrogen supply: a free air CO2 enrichment (FACE) experiment

    Han-Yong Kim;Mark Lieffering;Kazuhiko Kobayashi;Masumi Okada

  • Closing the global ozone yield gap: Quantification and cobenefits for multistress tolerance

    Gina Mills;Katrina Sharps;David Simpson;David Simpson;Håkan Pleijel

  • Free-air CO2 enrichment (FACE) using pure CO2 injection: system description

    M. Okada;M. Lieffering;H. Nakamura;M. Yoshimoto

  • Effects of free-air CO2 enrichment and nitrogen supply on the yield of temperate paddy rice crops

    Han-Yong Kim;Mark Lieffering;Kazuhiko Kobayashi;Masumi Okada

  • Differential responses in two varieties of winter wheat to elevated ozone concentration under fully open-air field conditions

    Zhaozhong Feng;Jing Pang;Jing Pang;Kazuhiko Kobayashi;Jianguo Zhu

  • 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

  • Effects of free‐air CO2 enrichment (FACE) on CH4 emission from a rice paddy field

    Kazuyuki Inubushi;Weiguo Cheng;Shinichi Aonuma;M.M. Hoque

  • Constraints to nitrogen acquisition of terrestrial plants under elevated CO2

    Zhaozhong Feng;Zhaozhong Feng;Tobias Rütting;Håkan Pleijel;Göran Wallin

  • Impact of elevated ozone concentration on yield of four Chinese rice cultivars under fully open-air field conditions

    Guangyao Shi;Lianxin Yang;Yunxia Wang;Kazuhiko Kobayashi

  • Successful Engraftment After Reduced-Intensity Umbilical Cord Blood Transplantation for Adult Patients with Advanced Hematological Diseases

    Shigesaburo Miyakoshi;Koichiro Yuji;Masahiro Kami;Eiji Kusumi

  • Effects of elevated ozone concentration on yield of four Chinese cultivars of winter wheat under fully open-air field conditions

    Xinkai Zhu;Zhaozhong Feng;Taofang Sun;Xiaocheng Liu

  • A projection of ozone‐induced wheat production loss in China and India for the years 2000 and 2020 with exposure‐based and flux‐based approaches

    Haoye Tang;Masayuki Takigawa;Gang Liu;Jianguo Zhu

  • Effects of ozone on dry matter partitioning and yield of Japanese cultivars of rice (Oryza sativa L.)

    Kazuhiko Kobayashi;Masumi Okada;Isamu Nouchi

Frequent Co-Authors

Masumi Okada
Masumi Okada Iwate University
Zhaozhong Feng
Zhaozhong Feng Nanjing University of Information Science and Technology
Jianguo Zhu
Jianguo Zhu Chinese Academy of Sciences
Toshihiro Hasegawa
Toshihiro Hasegawa National Agriculture and Food Research Organization
Toshihiro Nukiwa
Toshihiro Nukiwa Tohoku University
Kazuyuki Inubushi
Kazuyuki Inubushi Chiba University
Kazuyuki Yagi
Kazuyuki Yagi National Agriculture and Food Research Organization
Hidemitsu Sakai
Hidemitsu Sakai National Agriculture and Food Research Organization
Håkan Pleijel
Håkan Pleijel University of Gothenburg
Johan Uddling
Johan Uddling University of Gothenburg

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