John Roy Porter

John Roy Porter

Professor, emeritus

ORCID: 0000-0002-0777-3028

Publication year:
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1 - 100 out of 206Page size: 100
  1. Published

    Demographic approaches to studies of canopy development in plants

    Porter, John Roy, 1996, In: Biomass & Bioenergy. (2-3), p. 207-214 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Landbruget: energi og fødevareproduktion i et samlet system?

    Porter, John Roy & Olsen, H., 1996, In: Naturens Verden. 9, p. 321-326 6 p.

    Research output: Contribution to journal › Journal article › Research

  3. Published

    [Topic of the proposed EU directive on biotechnological inventions] : [indlæg ved offentlig høring i Europa Parlamentet: Protection Juridique des Inventions Biotechnologiques]

    Porter, John Roy, 1996

    Research output: Other contribution › Communication

  4. Published

    The ¤final report of IACR Long Ashton Research Station to ESPACE-Wheat

    Porter, John Roy & Ewert, F., 1995

    Research output: Other contribution › Communication

  5. Published

    Annex I: summary of presentations

    Porter, John Roy & Wollenweber, B., 1997. 4 p.

    Research output: Contribution to conference › Paper › Research

  6. Published

    Quantification of uncertainty in wheat yield prediction under future climate

    Schellberg, J., Ferris, R., Porter, John Roy, Wheeler, T. & Wollenweber, B., 1998, Ikke angivet. European Commission, Fourth Framework Programme, DGXII, 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  7. Published

    Temperature variability and the yield of annual crops

    Wheeler, T. R., Craufurd, P. Q., Ellis, R. H., Porter, John Roy & Prasad, P. V. V., 2000, In: Agriculture, Ecosystems & Environment. 82, p. 159-167 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    A dynamic Model of the Effects of nitrogen Fertilisation, Water Deficit and Temperature on grain protein level and composition for Bread Wheat (Triticum Aestivum L.)

    Martre, P., Porter, John Roy, Jamieson, P., Henton, S. M. & Triboï, E., 2003. 4 p.

    Research output: Contribution to conference › Paper › Research

  9. Published

    VIII ESA Congress: book of proceedings

    Jacobsen, S., Jensen, C. R. & Porter, John Roy, 2004, Copenhagen: Center for Skov, Landskab og Planlægning/Københavns Universitet. 968 p.

    Research output: Book/Report › Book › Education

  10. Published

    Need for multidisciplinary research towards a second green revolution: commentary

    Wollenweber, B., Porter, John Roy & Lübberstedt, T., 2005, In: Current Opinion in Plant Biology. 8, 3, p. 337-341 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    We must know what is green before we tax

    Porter, John Roy, Bindi, M., Olesen, J. E. & Smith, P., 13 Nov 2007, In: Times Online. 1 p.

    Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication

  12. Published

    Food security: focus on agriculture

    Porter, John Roy, Challinor, A., Ewert, F., Falloon, P., Fischer, T., Gregory, P., Van Ittersum, M. K., Olesen, J. E., Moore, K. J., Rosensweig, C. & Smith, P., 2010, In: Science. 328, p. 172 1 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  13. Published

    Agronomy as the science of primary food production

    Porter, John Roy, 2010, Proceedings of Agro2010 the XIth ESA Congress: 2010, Montpellier, France. p. 41-42 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  14. Published

    Position statement on climate change

    Boote, K. J., Brouder, S. M., Clay, D., Gepts, P., Hatfield, J. L., Hillel, D., Izaurralde, R. C., Mosier, A. R., Porter, John Roy, Rosenzweig, C. E., Rice, C. W. & Climate Change Working Group, C. C. W. G., 2011, American Society of Agronomy. 12 p.

    Research output: Book/Report › Book › Research › peer-review

  15. Published

    Crop-climate models need an overhaul

    Rötter, R. P., Carter, T. R., Olesen, J. E. & Porter, John Roy, 2011, In: Nature. 1, p. 175-177 3 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  16. Published

    Long-term effects of conversion to organic farming on ecosystem services - a model simulation case study and on-farm case study in Denmark

    Fan, F., Henriksen, Christian Bugge & Porter, John Roy, 28 May 2018, In: Agroecology and Sustainable Food Systems. 42, 5, p. 504-529 26 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Deconstructing crop processes and models via identities

    Porter, John Roy & Christensen, Svend, 2013, In: Plant, Cell and Environment. 36, 11, p. 1919-1925 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Recasting economics as if the climate and global ecology really mattered

    Porter, John Roy, Howden, M., Smith, P. & Stokholm, M. S., 2017, In: Consilience: The Journal of Sustainable Development. 17, 1, p. 220-229 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Food, hunger, health, and climate change

    Woodward, A. & Porter, John Roy, 2016, In: The Lancet. 387, 10031, p. 1886-1887 2 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  20. Published

    Food and nutritional security requires adequate protein as well as energy, delivered from whole-year crop production

    Coles, G. D., Wratten, S. D. & Porter, John Roy, 2016, In: PeerJ. 4, 17 p., e2100.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Klimakrisen kræver mere handling på den korte bane, Dan Jørgensen

    Gaarsmand Jacobsen, S., Lund, Jens Friis, Andersen, G., Jespersen, B., Porter, John Roy, Borregaard, Michael Krabbe, Richey, L. A. & Furu, Peter, 22 Feb 2021, Ræson.dk.

    Research output: Other contribution › Net publication - Internet publication › Communication

  22. Published

    Review and analysis of vulnerability to rainfall variability and policy responses to agricultural water supply in Nigeria

    Olayide, O. E., Tetteh, I. K., Porter, John Roy & Popoola, L., 2016, In: Journal of Food, Agriculture and Environment. 14, 2, p. 152-155 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Determination of biomass accumulation in mixed belts of Salix, Corylus and Alnus species in combined food and energy production system

    Ghaley, Bhim Bahadur & Porter, John Roy, 2014, In: Biomass & Bioenergy. 63, p. 86-91 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Ecosystem function and service quantification and valuation in a conventional winter wheat production system with DAISY model in Denmark

    Ghaley, Bhim Bahadur & Porter, John Roy, 2014, In: Ecosystem Services. 10, p. 79-83 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Can crop-climate models be accurate and precise? A case study for wheat production in Denmark

    Montesino San Martin, M., Olesen, J. E. & Porter, John Roy, 2015, In: Agricultural and Forest Meteorology. 202, p. 51-60 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    An ¤analysis of leaf emergence of spring wheat cv. Minaret grown in different environments

    Ewert, F., Porter, John Roy, Mulholland, B. J. & Vanhoutvin, S., 1996. 2 p.

    Research output: Contribution to conference › Paper › Research

  27. Published

    Effects on willow

    Evans, L. G., Eckersten, H., Semenov, M. A. & Porter, John Roy, 1995, Climate change and agriculture in Europe. Harrison, P. A., Butterfield, R. E. & Downing, T. E. (eds.). Oxford: Environmental Change Unit, p. 220-223 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  28. Published

    Use of AFRCWHEAT2 to predict the development of main stem and tillers in winter triticale and winter wheat in North East Germany

    Ewert, F., Porter, John Roy & Honermeier, B., 1996, In: European Journal of Agronomy. 5, p. 89-103 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Patenting living material in the EU : report to the International Network of Engineers and Scientists

    Porter, John Roy, 1997, Ethical dimensions of sustainability. 3 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  30. Published

    MODEXCROP project: model evaluation of experimental variability to improve predictability of crop yields under climate change

    Ewert, F. & Porter, John Roy, 1998, Copenhagen: Royal Veterinary and Agricultural University, Department of Agricultural Science, Agro-Ecology. 21 p.

    Research output: Book/Report › Book › Education

  31. Published

    The ¤how, why and wherefore of crop simulation models

    Porter, John Roy & Jamieson, P. D., 1998, EUR. Peter, D., Maracchi, G. & Ghazi, A. (eds.). 18175 ed. Official Publications of the European Communities, p. 183-201 19 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  32. Published

    The ¤European Parliament and Council Directive on thelegal protection of biotechnological inventions: text of presentation to the European Parliament's Committee on Legal Rights and CivilianAffairs, December 1997

    Porter, John Roy, 1997

    Research output: Other contribution › Communication

  33. Published

    Modelling effects of ozone exposure, elevated CO2 and weather on wheat

    Ewert, F. & Porter, John Roy, 1999. 2 p.

    Research output: Contribution to conference › Paper › Research

  34. Published

    Ozone effects on wheat in response to climatic variation and CO2

    Ewert, F., Oijen, M. V. & Porter, John Roy, 2000. 1 p.

    Research output: Contribution to conference › Paper › Research

  35. Published

    Challenges in designing ecological agriculture education: a Nordic perspective on change

    Francis, C. A., Lieblein, G., Helenius, J., Salomonsson, L., Olsen, H. & Porter, John Roy, 2001, In: Renewable Agriculture and Food Systems (Print Edition). 16, 2, p. 89-95 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    The ¤use of phenological data and models in a pest risk analyses for karnal bunt (Tilletia indica) in wheat across Europe

    Ewert, F., Porter, John Roy, Miglietta, F., Gioli, B., Baker, R. & Sansford, C., 2001, The ¤times they are changing : book of abstratcs. p. 15 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  37. Published

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

    Wollenweber, B., Porter, John Roy & Schellberg, J., 2003, In: Journal of Agronomy and Crop Science. 189, 3, p. 142-150 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Predicting potential distribution of karnal bunt (Tilletia indica) of wheat

    Ewert, F., Baker, R., Porter, John Roy, Gioli, B., Miglietta, F. & Sansford, C., 2002. 2 p.

    Research output: Contribution to conference › Paper › Research

  39. Published

    Lack of interaktion between extreme high-temperature events at vegetative and reproductive growtg stages in wheat

    Wollenweber, B., Porter, John Roy & Schellberg, J., 2003, In: Journal of Agronomy and Crop Science. 189, p. 142-150 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Effects of water deficits and high temperature-events in wheat

    Wollenweber, B., Porter, John Roy, Jensen, C. R. & Schellberg, J., 2004, Ikke angivet. Sven-Erik Jacobsen, C. R. J. J. R. P. (ed.). Samfundslitteratur, p. 195-196 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  41. Published

    Combining af disease model with a crop phenology model to assess and map pest risk; Karnal bunt disease (Tilletia indica) of wheat in Europe

    Baker, R. H. A., Sansford, C. E., Gioli, B., Miglietta, F., Porter, John Roy & Ewert, F., 2005, Ikke angivet. Christian Ejlers, 6 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  42. Published

    Crop responses to climatic variation: Papers of a Discussion Meeting held at The Royal Society on 26 and 27 April 2005 Food crops an a changing climate

    Porter, John Roy & Semenov, M. A., 2005, In: Philosophical Transactions of the Royal Society of London. Biological Sciences. 360, 1463, p. 2021-2035 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Potential impacts of climate change on production of biofuels in agriculture the Nordic and Baltic Region

    Porter, John Roy, 2006, Impacts of climate change on renewable energy sources and their role in the Nordic energy system: case of bio-fuels. Kellomäki, S. & Leinonen, S. (eds.). Joensuu, Finland: University of Joensuu, Faculty of Forestry, p. 38-49 12 p. (Research Notes / University of Joensuu, Faculty of Forestry; No. 170).

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

  44. Published

    Wheat production systems and global climate change: chapter 16

    Porter, John Roy, Jamieson, P. D. & Grace, P. R., 2007, Terrestrial ecosystems in a changing world. Canadell, J. G., Pataki, D. & Pitelka, L. (eds.). Berlin: Kluwer Academic Publishers, p. 195-209 15 p. (Global Change - The IGBP Series).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  45. Published

    In memoriam Dr. P.H. (Pieter) Vereijken

    Porter, John Roy (ed.) & Spiertz, H., 2007, In: European Journal of Agronomy. 27, 2-4, p. iii-iv 2 p.

    Research output: Contribution to journal › Journal article › Communication

  46. Published

    Reconciling alternative models of phenological development in winter wheat

    Jamieson, P. D., Brooking, I. R., Semenov, M. A., McMaster, G. S., White, J. W. & Porter, John Roy, 2007, In: Field Crops Research. 103, 1, p. 36-41 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Biofuels: putting current practices in perspective

    Porter, John Roy, Chirinda, N., Felby, C. & Olesen, J. E., 2008, In: Science. 320, 5882, p. 1420-1420 1 p.

    Research output: Contribution to journal › Comment/debate › Research

  48. Published

    The Copenhagen Climate Congress - future agricultural production and climate change

    Porter, John Roy, 2009, In: FNAT. 4, p. 10-11 2 p.

    Research output: Contribution to journal › Journal article › Communication

  49. Published

    Chemical stress can increase crop yield

    Cedergreen, Nina, Felby, C., Porter, John Roy & Streibig, Jens Carl, 2009, In: Field Crops Research. 114, 1, p. 54-57 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    A European science plan to sustainably increase food security under climate change

    Soussana, J., Fereres, E., Long, S. P., Mohren, F. G. M. J., Pandya-Lorch, R., Peltonen-Sainio, P., Porter, John Roy, Rosswall, T. & von Braun, J., 2012, In: Global Change Biology. 18, 11, p. 3269-3271 3 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  51. Published

    Effects and relationships of grazing intensity on multiple ecosystem services in the Inner Mongolian steppe

    Fan, F., Liang, C., Tang, Y., Harker-Schuch, I. & Porter, John Roy, 20 Jul 2019, In: Science of the Total Environment. 675, p. 642-650

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    Temperature, CO2 and the growth and development of wheat: changes in the mean and variability of growing conditions

    Moot, D. J., Henderson, A. L., Porter, John Roy & Semenov, M. A., 1996, In: Climatic Change. 33, 3, p. 351-368 18 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    Denmark: agriworld

    Porter, John Roy, 1996, In: The ¤furrow. 101, 2, 2 p.

    Research output: Contribution to journal › Journal article › Communication

  54. Published

    Research beyond the averages: climatic variability and plant growth

    Porter, John Roy, Geijn, S. C. V. D. & MacGillivray, C. W., 1996. 2 p.

    Research output: Contribution to conference › Paper › Research

  55. Published

    Modelling the effects of CO2 and ozone on growth and development of spring wheat in response to climatic conditions: final report of the Royal Veterinary and Agricultural University (DK) to the European Stress Physiology and Climate Experiment

    Ewert, F. & Porter, John Roy, 1997, In: Project 1 : wheat. EV5V-CT93-0301, 38 p.

    Research output: Contribution to journal › Journal article › Research

  56. Published

    Research beyond the means: climatic variability and plant growth

    Porter, John Roy & Moot, D. J., 1998, EUR. Dalezios, N. R. (ed.). 18328 ed. Publications Office, p. 13-23 11 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  57. Published

    Organic movement reveals a shift in the social position of science

    Mørkeberg, A. & Porter, John Roy, 2001, In: Nature. 412

    Research output: Contribution to journal › Journal article › Research › peer-review

  58. Published

    Modelling cropping systems- highlights of the symposium and preface to the special issues

    Hammer, G. L., Kropff, M. J., Sinclair, T. R. & Porter, John Roy, 2002, In: European Journal of Agronomy. 16, p. 1-11 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  59. Published

    Effects of elevated CO/sub 2/ and drought on wheat: testing crop simulation models for different experimental and climatic conditions

    Ewert, F., Rodriguez, D., Jamieson, P., Semenov, M. A., Mitchell, R. A. C., Goudriaan, J., Porter, John Roy, Kimball, B. A., Pinter, P. J., Manderscheid, R., Weigel, H. J., Fangmeier, A., Fereres, E. & Villalobos, F., 2002, In: Agriculture, Ecosystems & Environment. 93, p. 249-266 18 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  60. Published

    Rising temperatures are likely to reduce crop yields: correspondence

    Porter, John Roy, 2005

    Research output: Other contribution › Communication

  61. Published

    Agroecology: a flagship NOVA program

    Lieblein, G., Bretland, T. A., Francis, C. A., Sriskandarajah, N., Langer, Vibeke, Porter, John Roy, Salomonsen, L., Gerber, U. & Helenius, J., 2005, 10 NOVA University Network Years. The Nordic Forestry, Veterinary and Agricultural University Network, p. 52-53 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  62. Published

    The physiology of crop yield

    Hay, R. K. M. & Porter, John Roy, 2006, 2. udg. ed. Oxford: Blackwell Publishing. 309 p.

    Research output: Book/Report › Report › Research

  63. Published

    Afgrødernes respons på klimaændringer

    Porter, John Roy, 2007. 2 p.

    Research output: Contribution to conference › Paper › Research

  64. Published

    Bioethanol i tanken udelukker ikke mad i maven

    Felby, C., Streibig, Jens Carl & Porter, John Roy, 2007, In: Dagbladet Information. 2 p.

    Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication

  65. Published

    Emissions of nitrous oxide from arable organic and conventional cropping systems on two soil types

    Chirinda, N., Carter, M. S., Albert, K. R., Ambus, Per Lennart, Olesen, J. E., Porter, John Roy & Petersen, S. O., 2010, In: Agriculture, Ecosystems & Environment. 136, 3-4, p. 199-208 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  66. Published

    The value of producing food, energy, and ecosystem services within an agro-ecosystem

    Porter, John Roy, Constanza, R., Sandhu, H., Sigsgaard, L & Wratten, S., 2009, In: Ambio. 38, 4, p. 186-193 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  67. Aggregation of Phytophthora drechsleri zoospores; pattern analysis suggests a taxis

    Porter, John Roy & Shaw, D. S., 1978, In: Transactions of the British mycological Society. 71, p. 515 518 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  68. Published

    Effect of soil warming and rainfall patterns on soil N cycling in northern Europe

    Patil, R. H., Lægdsmand, M., Olesen, J. E. & Porter, John Roy, 2010, In: Agriculture, Ecosystems & Environment. 139, 1-2, p. 195-205 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  69. Published

    Simulating soil N2O emissions and heterotrophic CO2 respiration in arabe systems using FASSET and MoBiLE-DNDC

    Chirinda, N., Kracher, D., Lægdsmand, M., Porter, John Roy, Olesen, J. E., Petersen, B. M., Doltra, J., Kiese, R. & Butterbach-Bahl, K., 2011, In: Plant and Soil. 343, 1-2, p. 139-160 22 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  70. Published

    Agronomy as the science of sustainable food production

    Porter, John Roy, 2011, Climate change: challenges and opportunities in agriculture. AGRISAFE, p. 12-15 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  71. Published

    Relationship between stoichiometry and ecosystem services: a case study of organic farming systems

    Fan, F., Henriksen, Christian Bugge & Porter, John Roy, 2018, In: Ecological Indicators. 85, p. 400-408 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  72. Published

    The role of uncertainty in climate change adaptation strategies - a Danish water management example

    Refsgaard, J. C., Arnbjerg-Nielsen, K., Drews, M., Halsnæs, K., Jeppesen, E., Madsen, H., Markandya, A., Olesen, J. E., Porter, John Roy & Christensen, J. H., 2013, In: Mitigation and Adaptation Strategies for Global Change. 18, 3, p. 337-359 23 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  73. Published

    Experimental assessment of ecosystem services in agriculture

    Sandhu, H., Porter, John Roy & Wratten, S., 2013, Ecosystem services in agricultural and urban landscapes. Wratten, S., Sandhu, H., Cullen, R. & Costanza, R. (eds.). Wiley-Blackwell, p. 122-135 14 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  74. Published

    Soil-based ecosystem services: a synthesis of nutrient cycling and carbon sequestration assessment methods

    Ghaley, Bhim Bahadur, Porter, John Roy & Sandhu, H. S., 2014, In: The International Journal of Biodiversity Science, Ecosystems Services & Management. 10, 3, p. 177-186 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  75. Published

    Significance and value of non.traded ecosystem services on farmland

    Sandhu, H., Wratten, S., Costanza, R., Pretty, J., Porter, John Roy & Reganold, J., 2015, In: PeerJ. 3, 22 p., e762.

    Research output: Contribution to journal › Journal article › Research › peer-review

  76. Published

    Ten facts about land systems for sustainability

    Meyfroidt, P., de Bremond, A., Ryan, C. M., Archer, E., Aspinall, R., Chhabra, A., Camara, G., Corbera, E., DeFries, R., Díaz, S., Dong, J., Ellis, E. C., Erb, K. H., Fisher, J. A., Garrett, R. D., Golubiewski, N. E., Grau, H. R., Grove, J. M., Haberl, H., Heinimann, A. & 30 others, Hostert, P., Jobbágy, E. G., Kerr, S., Kuemmerle, T., Lambin, E. F., Lavorel, S., Lele, S., Mertz, Ole, Messerli, P., Metternicht, G., Munroe, D. K., Nagendra, H., Nielsen, J. Ø., Ojima, D. S., Parker, D. C., Pascual, U., Porter, John Roy, Ramankutty, N., Reenberg, A., Roy Chowdhury, R., Seto, K. C., Seufert, V., Shibata, H., Thomson, A., Turner, B. L., Urabe, J., Veldkamp, T., Verburg, P. H., Zeleke, G. & Zu Ermgassen, E. K. H. J., 2022, In: Proceedings of the National Academy of Sciences of the United States of America. 119, 7, 12 p., e2109217118.

    Research output: Contribution to journal › Journal article › Research › peer-review

  77. Published

    Invited review: Intergovernmental Panel on Climate Change, agriculture, and food—A case of shifting cultivation and history

    Porter, John Roy, Challinor, A. J., Henriksen, Christian Bugge, Howden, S. M., Martre, P. & Smith, P., 1 Aug 2019, In: Global Change Biology. 25, 8, p. 2518-2529

    Research output: Contribution to journal › Review › Research › peer-review

  78. Published

    A ¤strategy for process modelling of short-rotation Salix coppice plantations

    Isebrands, J. G., Host, G. E., Bollmark, L., Porter, John Roy, Philippot, S., Stevens, E. & Rushton, K., 1996, In: Biomass & Bioenergy. (2/3), p. 245-252 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  79. Published

    A ¤simulation study of crop growth and development under climate change

    Peiris, D. R., Crawford, J. W., Grashoff, C., Jefferies, R. A., Porter, John Roy & Marshall, B., 1996, In: Agricultural and Forest Meteorology. 79, p. 271-287 17 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  80. Published

    Modelling the effects of climatic change and genetic modification on nitrogen use by wheat

    Porter, John Roy, Leigh, R. A., Semenov, M. A. & Miglietta, F., 1995. 22 p.

    Research output: Contribution to conference › Paper › Research

  81. Published

    Modelling ozone effects on wheat in relation to elevated CO2 and weather: short-term to seasonal responses of leaf photosynthesis

    Ewert, F. & Porter, John Roy, 1997, In: Plant, Cell and Environment. 1997

    Research output: Contribution to journal › Journal article › Research › peer-review

  82. Published

    Final report of Long Ashton Research Station (UK) to the European Stress Physiology and Climate Experiment

    Porter, John Roy & Ewert, F., 1997, In: Project 1 : wheat. EV5V-CT93-0301, 18 p.

    Research output: Contribution to journal › Journal article › Research

  83. Published

    Effects of extreme temperatures at two growth stages on wheat

    Porter, John Roy & Wollenweber, B., 1997. 5 p.

    Research output: Contribution to conference › Paper › Research

  84. Published

    Report to the 3. CLIVARA meeting - Avignon, France, March 15-19, 1997

    Porter, John Roy & Wollenweber, B., 1997

    Research output: Other contribution › Communication

  85. Published

    Energetic, economic and ecological balances of a combined food and energy system

    Kuemmel, B., Langer, Vibeke, Magid, Jakob, de Neergaard, Andreas & Porter, John Roy, 1998, In: Biomass & Bioenergy. (4/5), p. 407-416 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  86. Published

    Climate variability and crop yields in Europe

    Porter, John Roy & Semenov, M. A., 1999, In: Nature. 400, 6746, p. 724 1 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  87. Published

    Simulation of growth and development processes of spring wheat in response to CO2 and ozone for different sites and years in Europe using mechanistic crop simulation models

    Ewert, F., Oijen, M. V. & Porter, John Roy, 1999, In: European Journal of Agronomy. 10, p. 231-247 17 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  88. Published

    Future education in ecological agriculture and food systems: a student-faculty evaluation and planning process

    Lieblein, G., Francis, C., Barth-Eide, W., Torjusen, H., Solberg, S., Salomonsson, L. V., Ekblad, G., Persson, P., Helenius, J., Loiva, M., Seppänen, L., Kahiluoto, H., Porter, John Roy, Olsen, H., Sriskandarajah, N., Mikk, M. & Flora, C., 2000, In: Journal of Sustainable Agriculture. 16, 4, p. 49-69 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  89. Published

    Effects of water deficits and high temperature-events in wheat

    Wollenweber, B., Jensen, C. R., Schellberg, J. & Porter, John Roy, 2000. 1 p.

    Research output: Contribution to conference › Paper › Research

  90. Published

    Effects of high temperature extremes on wheat

    Ferris, R., Wheeler, T. R., Ellis, R. H., Hadley, P., Wollenweber, B., Porter, John Roy, Karacostas, T. S., Papadopoulos, M. N. & Schellberg, J., 2000, Climate change, climatic variability and agriculture in Europe : an integrated assessment. Downing, T. E., Harrison, P. A., Butterfield, R. E. & Lonsdale, K. G. (eds.). p. 31-55 25 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  91. Published

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

    Hammer, G. L., Kropff, M. J., Sinclair, T. R. & Porter, John Roy, 2002, In: European Journal of Agronomy. 18, p. 15-31 17 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  92. Published

    Agroecology education and research: an academic platform for organic farming

    Francis, C., Breland, T. A., Lieblein, G., Moulton, M., Salomonsen, L., Geber, U., Langer, Vibeke, Sriskandarajah, N., Porter, John Roy & Helenius, J., 2006, Ikke angivet. Andreasen, C. B., Elsgaard, L., Søndergaard Sørensen, L. & Hansen, G. (eds.). Forskningscenter for Økologisk Jordbrug og Fødevaresystemer, 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  93. Published

    Choosing crops as energy feedstocks

    Porter, John Roy, Kirsch, M. M. N., Streibig, Jens Carl & Felby, C., 2007, In: Nature Biotechnology. 25, 7, p. 716-717 1 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  94. Published

    The new pest risk analysis for Tilletia indica, the cause of karnal bunt of wheat, continues to support the quarantine status of the pathogen in Europe

    Sansford, C. E., Baker, R. H. A., Brennan, J. P., Ewert, F., Gioli, B., Inman, A., Kinsella, A., Magnus, H. A., Miglietta, F., Murray, G. M., Porta-Puglia, A., Porter, John Roy, Rafoss, T., Riccioni, L. & Thorne, F., 2008, In: Plant Pathology. 57, 4, p. 603-611 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  95. Published

    The Rubisco enzyme and agricultural productivity

    Porter, John Roy & Wollenweber, B., 2010, In: Nature Correspondence. 463, 7283, p. 876 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  96. Published

    Læbælter til energi og marker til fødevareproduktion

    Porter, John Roy, Sigsgaard, L, Sandhu, H. S., Wratten, S. D., Costanza, R. & Dennis, B., 2010, In: Jord og Viden. 155, 5, p. 18-19

    Research output: Contribution to journal › Journal article › Research

  97. Published

    Feedings Capitals: Security and Sovereignty of Food and Land in Canberra, Copenhagen and Tokyo

    Porter, John Roy, 2010, Green Revolution 2.0: Food+Energy and Environmental Security: Session 52: Symposium--Global Food Security in a Changing Climate. American Society of Agronomy, p. s. 71

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  98. Published

    Globalt læringsmiljø om et globalt problem: en beskrivelse af et tværvidenskabeligt online kursus om klimaforandringer

    Henriksen, Christian Bugge, Monty, A. & Porter, John Roy, 2010, In: Tidsskriftet Læring og Medier (LOM). 6, p. 1-21 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  99. Published

    Identity-based estimation of greenhouse gas emissions from crop production: case study from Denmark

    Bennetzen, E. H., Smith, P., Soussana, J. & Porter, John Roy, 2012, In: European Journal of Agronomy. 41, p. 66-72 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  100. Published

    Durum wheat modeling: The Delphi system, 11 years of observations in Italy

    Toscano, P., Ranieri, R., Matese, A., Vaccari, F. P., Gioli, B., Zaldei, A., Silvestri, M., Ronchi, C., La Cava, P., Porter, John Roy & Miglietta, F., 2012, In: European Journal of Agronomy. 43, p. 108-118 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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