John Roy Porter
Professor, emeritus
Section for Crop Sciences
Højbakkegård Allé 13
2630 Taastrup
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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
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Organic movement reveals a shift in the social position of science
Mørkeberg, A. & Porter, John Roy, 2001, In: Nature. 412Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Interaction between soils and crop production: rational systems
Porter, John Roy, 1998. 2 p.Research output: Contribution to conference › Paper › Research
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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
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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
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Report to the 3. CLIVARA meeting - Avignon, France, March 15-19, 1997
Porter, John Roy & Wollenweber, B., 1997Research output: Other contribution › Communication
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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
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Patent confusion in law on new plant varieties
Porter, John Roy, 2000Research output: Other contribution › Communication
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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
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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
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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
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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
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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
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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
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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
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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
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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
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The ¤final report of IACR Long Ashton Research Station to ESPACE-Wheat
Porter, John Roy & Ewert, F., 1995Research output: Other contribution › Communication
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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
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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
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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
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Denmark: agriworld
Porter, John Roy, 1996, In: The ¤furrow. 101, 2, 2 p.Research output: Contribution to journal › Journal article › Communication
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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
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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
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Annex I: summary of presentations
Porter, John Roy & Wollenweber, B., 1997. 4 p.Research output: Contribution to conference › Paper › Research
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Rising temperatures are likely to reduce crop yields: correspondence
Porter, John Roy, 2005Research output: Other contribution › Communication
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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
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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
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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
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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
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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
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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
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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
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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. 2518-2529Research output: Contribution to journal › Review › Research › peer-review
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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
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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
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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
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Afgrødernes respons på klimaændringer
Porter, John Roy, 2007. 2 p.Research output: Contribution to conference › Paper › Research
ID: 3148511
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Food security and food production systems
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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7171
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Emergy signature as a basis for sustainability valuation of agro-ecosystems
Research output: Contribution to conference › Poster › Research
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1162
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Risks associated with Tilletia indica, the newly-listed EU quarantine pathogen, the cause of Karnal bunt of wheat: EC 5. framework project QLK5-1999-01554
Research output: Book/Report › Report › Research
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