John Roy Porter

John Roy Porter

Professor, emeritus

ORCID: 0000-0002-0777-3028

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  1. Published

    GLP (2005) Science Plan and Implementation Strategy. IGPB Report No. 53/IHDP Report No. 19

    Moran, E., Ojima, D., Buchmann, N., Canadell, J., Graumlich, L., Jackson, R., Jaramillo, V., Lavorel, S., Leadly, P., Matson, P., Murdiyarso, D., Porter, John Roy, Pfaff, A., Pitelka, L., Rajan, K., Ramankutty, N., Turner, B. & Yagi, K., 2005, Stockholm: EGBP Secretariat. 64 p.

    Research output: Book/Report › Report › Communication

  2. 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

  3. Published

    Sustainability and biological interactions in a combined food and energy cropping system

    de Neergaard, Andreas, Langer, Vibeke, Kuemmel, B., Føreid, B. & Porter, John Roy, 2000. 1 p.

    Research output: Contribution to conference › Paper › Research

  4. 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

  5. Published

    Verdens bønder - fremtidens helte

    Olofsdotter, M. & Porter, John Roy, 2000, In: Morgenavisen Jyllands-Posten. 21, 1 p.

    Research output: Contribution to journal › Journal article › Communication

  6. Published

    Soil temperature manipulation to study global warming effects in arable land: performance of buried heating-cable method

    Patil, R. H., Laegdsmand, M., Olesen, J. E. & Porter, John Roy, 2013, In: Environment and Ecology Research. 1, 4, p. 196-204 9 p.

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

  7. 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

  8. Published

    Sensitivity of crop yield and N losses in winter wheat to changes in mean and variability of temperature and precipitation in Denmark using the FASSET model

    Patil, R. H., Lægdsmand, M., Olesen, J. E. & Porter, John Roy, 2012, In: Acta Agriculturae Scandinavica. Section B. Soil and Plant Science. 62, 4, p. 335-351 17 p.

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

  9. Published

    Growth and yield response of winter wheat to soil warming and rainfall patterns

    Patil, R. H., Lægdsmand, M., Olesen, J. E. & Porter, John Roy, 2010, In: Journal of Agricultural Science. 148, 5, p. 553-566 14 p.

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

  10. 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

  11. 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

  12. Published

    Interaction between soils and crop production: rational systems

    Porter, John Roy, 1998. 2 p.

    Research output: Contribution to conference › Paper › Research

  13. Published

    Anthesis date and agricultural risk and the effects of high temperature extremes on wheat

    Porter, John Roy & Wollenweber, B., 1997. 15 p.

    Research output: Contribution to conference › Paper › Research

  14. 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

  15. Published

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

    Porter, John Roy & Wollenweber, B., 1997

    Research output: Other contribution › Communication

  16. 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

  17. Published

    Patent confusion in law on new plant varieties

    Porter, John Roy, 2000

    Research output: Other contribution › Communication

  18. Published

    Plant modification needs more discussion

    Porter, John Roy, 1997, In: Nature. 386, p. 111 1 p.

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

  19. 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

  20. 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

  21. 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

  22. 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

  23. Published

    Activities of the INES Standing Committee on Ethical Questions

    Porter, John Roy, 1996, Scientists for Global Responsibility : National Coordinating Committee report 1993-1995. p. 9-10 2 p.

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

  24. Published

    The ¤European Parliament and Council Directive on the Legal Protection of Biotechnological Inventions (COM(95)0661-C4-0063/96-95/0350(COD)): submission to the Danish Parliament

    Porter, John Roy, 1997

    Research output: Book/Report › Book › Education

  25. Published

    Modelling crop yields under climate change

    Porter, John Roy & Semenov, M. A., 1997, In: Eurostat. 1997, p. 349-366 18 p.

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

  26. 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

  27. Published

    Temperatures and the growth and development of wheat: a review

    Porter, John Roy & Gawith, M., 1999, In: European Journal of Agronomy. 10, p. 23-36 14 p.

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

  28. Published

    Patent nonsense

    Porter, John Roy, 1997, In: Chemistry and industry. 15, p. 626 1 p.

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

  29. Published

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

    Porter, John Roy & Ewert, F., 1995

    Research output: Other contribution › Communication

  30. 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

  31. Published

    Modelling and experimental studies of the growth and development of wheat

    Porter, John Roy, 2000, Copenhagen: The Royal Veterinary and Agricultural University, Department of Dairy and Food Science, Agroecology Group. 99 p.

    Research output: Book/Report › Ph.D. thesis › Research

  32. Published

    Report to the Danish Agricultural and Veterinary Research Council on research activities June 1996

    Porter, John Roy, 1997, 15 p.

    Research output: Book/Report › Book › Education

  33. Published

    Denmark: agriworld

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

    Research output: Contribution to journal › Journal article › Communication

  34. Published

    The ¤landscape consequences of combined food and energy systems

    Porter, John Roy, 1997, Landskabsøkologiske skrifter. Brandt, J. . . A. . (ed.). 6 ed. Center for Landskabsforskning, Roskilde Universitet, p. 13-20 8 p.

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

  35. 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

  36. Published

    Annex I: summary of presentations

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

    Research output: Contribution to conference › Paper › Research

  37. Published

    Rising temperatures are likely to reduce crop yields: correspondence

    Porter, John Roy, 2005

    Research output: Other contribution › Communication

  38. 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

  39. 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

  40. Published

    Agroecology, scaling and interdisciplinarity

    Porter, John Roy, Dalgaard, T. & Hutchings, N. J., 2003, In: Agriculture Acosystems & Environment. 100, 1, p. 39-51 13 p.

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

  41. Published

    Food and fibre

    Porter, John Roy, Green, K., Ingram, J. & Jaeger, J., 2003, In: Global Problems - Global Science - Europes contribution to global change research. ESF forward Look Report. 1, p. 45-56 11 p.

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

  42. Published

    Vaccines, social measures and Covid19 - A European evidence-based analysis: Vaccines, social measures and Covid19

    Porter, John Roy, 2021, medRxiv, 12 p. (medRxiv).

    Research output: Working paper › Preprint › Research

  43. 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

  44. 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

  45. Published

    Deconstructing agronomic resource use efficiencies to increase food production

    Porter, John Roy, Thorburn, P. J., Brown, H. E., Teixeira, E. I., Moot, D. J., Mills, A. & Christensen, Svend, 2021, In: Italian Journal of Agronomy. 16, 3, 6 p., 1694.

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

  46. 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

  47. 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

  48. 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

  49. 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

  50. Published

    Afgrødernes respons på klimaændringer

    Porter, John Roy, 2007. 2 p.

    Research output: Contribution to conference › Paper › Research

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