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Plant Science and Agronomy
Denmark
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 66 854 788 7 7 167 20383

John R. Porter publications per year

The chart shows the history of publications by John R. Porter between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John R. Porter published across 51 years, from 1975 to 2025, averaging 3.9 papers a year. Output peaked at 12 publications in 2009. 2 of the 201 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1975 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2009. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 2 publications 1985: 2 publications 1986: 1 publication 1987: 2 publications 1988: 2 publications 1989: 4 publications 1990: 2 publications 1991: 3 publications 1992: 3 publications 1993: 7 publications 1994: 1 publication 1995: 8 publications 1996: 7 publications 1997: 1 publication 1998: 4 publications 1999: 5 publications 2000: 7 publications 2001: 7 publications 2002: 5 publications 2003: 5 publications 2004: 2 publications 2005: 4 publications 2006: 3 publications 2007: 5 publications 2008: 2 publications 2009: 12 publications 2010: 9 publications 2011: 8 publications 2012: 7 publications 2013: 8 publications 2014: 12 publications 2015: 8 publications 2016: 9 publications 2017: 6 publications 2018: 9 publications 2019: 5 publications 2020: 5 publications 2021: 4 publications 2022: 1 publication 2023: 1 publication 2024: 0 publications 2025: 2 publications
1975 2025

201 publications in total across all disciplines

View publications per year as a table
John R. Porter: publications per year, 1975 to 2025
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 2
1985 2
1986 1
1987 2
1988 2
1989 4
1990 2
1991 3
1992 3
1993 7
1994 1
1995 8
1996 7
1997 1
1998 4
1999 5
2000 7
2001 7
2002 5
2003 5
2004 2
2005 4
2006 3
2007 5
2008 2
2009 12
2010 9
2011 8
2012 7
2013 8
2014 12
2015 8
2016 9
2017 6
2018 9
2019 5
2020 5
2021 4
2022 1
2023 1
2024 0
2025 2
Total 201
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John R. Porter 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 John R. Porter 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, 166–170 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: 167 publications — 66th percentile

66% 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
166–170 137 167
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
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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John R. Porter 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 John R. Porter 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, 66 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: 66 D-Index — 87th percentile

87% 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
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 66
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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Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in Denmark Leader Award
  • 2025 - Research.com Plant Science and Agronomy in Denmark Leader Award
  • 2023 - Research.com Plant Science and Agronomy in Denmark Leader Award
  • 2022 - Research.com Plant Science and Agronomy in Denmark Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Agronomy

His primary areas of investigation include Agronomy, Crop, Anthesis, Crop yield and Poaceae. His studies in Phenology, Sowing, Crop simulation model, Dry matter and Biomass are all subfields of Agronomy research. John R. Porter interconnects Shoot and Vernalization in the investigation of issues within Phenology.

His biological study spans a wide range of topics, including Food security and Growing season. His work is dedicated to discovering how Crop, Canopy are connected with Phyllochron and Meristem and other disciplines. The various areas that John R. Porter examines in his Crop yield study include Agroforestry, Agriculture, Climate change, Precipitation and Greenhouse effect.

His most cited work include:

  • Temperatures and the growth and development of wheat: a review (701 citations)
  • Crop responses to climatic variation (666 citations)
  • Food security and food production systems (467 citations)

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

His main research concerns Agronomy, Climate change, Agriculture, Food security and Crop. His is doing research in Phenology, Crop yield, Anthesis, Poaceae and Sowing, both of which are found in Agronomy. His Climate change study integrates concerns from other disciplines, such as Economy and Precipitation.

His Agriculture research is multidisciplinary, relying on both Environmental resource management, Greenhouse gas and Agricultural economics. His Food security research incorporates elements of Food industry and Arable land. A large part of his Crop studies is devoted to Crop simulation model.

He most often published in these fields:

  • Agronomy (46.19%)
  • Climate change (34.52%)
  • Agriculture (28.93%)

What were the highlights of his more recent work (between 2012-2021)?

  • Climate change (34.52%)
  • Agriculture (28.93%)
  • Food security (25.89%)

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

Climate change, Agriculture, Food security, Agronomy and Ecosystem services are his primary areas of study. His Climate change research integrates issues from Statistics, Propagation of uncertainty, Land use and Precipitation. His work on Organic farming and Agricultural productivity as part of general Agriculture study is frequently linked to Context, bridging the gap between disciplines.

His work in the fields of Food security, such as Food systems, intersects with other areas such as Research program. His study on Grain quality and Crop is often connected to Simulation modeling as part of broader study in Agronomy. John R. Porter has researched Crop in several fields, including Crop yield, Phenology and Sowing.

Between 2012 and 2021, his most popular works were:

  • Food security and food production systems (467 citations)
  • Temperatures and the growth and development of maize and rice: a review. (288 citations)
  • Simulation of Soil Organic Carbon Effects on Long-Term Winter Wheat (Triticum aestivum) Production Under Varying Fertilizer Inputs. (260 citations)

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

  • Agriculture
  • Ecology
  • Statistics

John R. Porter mainly focuses on Climate change, Agronomy, Food security, Agriculture and Crop. In the subject of general Climate change, his work in Climate commitment, Effects of global warming and Runaway climate change is often linked to Ambiguity, thereby combining diverse domains of study. His studies deal with areas such as Adaptation, Agricultural engineering and Global change as well as Agronomy.

His work on Food policy as part of general Food security research is often related to Library science, thus linking different fields of science. His studies in Agriculture integrate themes in fields like Futures studies and Agricultural economics. His Crop research is multidisciplinary, incorporating perspectives in Crop yield, Propagation of uncertainty and Sowing.

Best Publications

  • Temperatures and the growth and development of wheat: a review

    John R Porter;Megan Gawith

  • Crop responses to climatic variation

    John R Porter;Mikhail A Semenov

  • A test of the computer simulation model ARCWHEAT1 on wheat crops grown in New Zealand

    P.D. Jamieson;J.R. Porter;D.R. Wilson

  • Temperature variability and the yield of annual crops

    Timothy R Wheeler;Peter Q Craufurd;Richard H Ellis;John R Porter

  • Temperatures and the growth and development of maize and rice: a review.

    Berta Sánchez;Anton Rasmussen;John R Porter

  • A model for fossil energy use in Danish agriculture used to compare organic and conventional farming

    Tommy Dalgaard;Niels Halberg;John R. Porter

  • A winter wheat crop simulation model without water or nutrient limitations

    A. H. Weir;P. L. Bragg;J. R. Porter;J. H. Rayner

  • Agroecology, scaling and interdisciplinarity

    Tommy Dalgaard;Nicholas J Hutchings;John R Porter

  • Climate change impact and adaptation for wheat protein

    Senthold Asseng;Pierre Martre;Andrea Maiorano;Reimund P Rötter

  • Crop-climate models need an overhaul

    Reimund P. Rötter;Timothy R. Carter;Jørgen E. Olesen;John R. Porter

  • Modeling Grain Nitrogen Accumulation and Protein Composition to Understand the Sink/Source Regulations of Nitrogen Remobilization for Wheat

    Pierre Martre;John R. Porter;Peter D. Jamieson;Eugène Triboï

  • The Physiology of Crop Yield

    Robert K. M. Hay;John R. Porter

  • Climatic variability and the modelling of crop yields

    M.A. Semenov;J.R. Porter

  • Lack of Interaction between Extreme High‐Temperature Events at Vegetative and Reproductive Growth Stages in Wheat

    B. Wollenweber;J. R. Porter;J. Schellberg

  • A comparison of the models AFRCWHEAT2, CERES-Wheat, Sirius, SUCROS2 and SWHEAT with measurements from wheat grown under drought

    P.D. Jamieson;J.R. Porter;J. Goudriaan;J.T. Ritchie

  • Rising temperatures are likely to reduce crop yields.

    John R. Porter

  • Crop modelling for integrated assessment of risk to food production from climate change

    F. Ewert;R.P. Rötter;M. Bindi;H. Webber

  • Future contributions of crop modelling—from heuristics and supporting decision making to understanding genetic regulation and aiding crop improvement

    G.L. Hammer;M.J. Kropff;T.R. Sinclair;J.R. Porter

  • Contribution of Crop Models to Adaptation in Wheat

    Karine Chenu;John Roy Porter;Pierre Martre;Bruno Basso

  • The Value of Producing Food, Energy, and Ecosystem Services within an Agro-Ecosystem

    John Porter;Robert Costanza;Harpinder Sandhu;Lene Sigsgaard

  • AFRCWHEAT2: A model of the growth and development of wheat incorporating responses to water and nitrogen

    John R. Porter

Frequent Co-Authors

Mikhail A. Semenov
Mikhail A. Semenov Rothamsted Research
Jørgen E. Olesen
Jørgen E. Olesen Aarhus University
Peter D. Jamieson
Peter D. Jamieson Plant & Food Research
Frank Ewert
Frank Ewert University of Bonn
Marco Bindi
Marco Bindi University of Florence
Pierre Martre
Pierre Martre INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Reimund P. Rötter
Reimund P. Rötter University of Göttingen
Peter Smith
Peter Smith University of Aberdeen
Andrew J. Challinor
Andrew J. Challinor University of Leeds
Taru Palosuo
Taru Palosuo Natural Resources Institute Finland

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