John Roy Porter
Professor, emeritus
Section for Crop Sciences
Højbakkegård Allé 13
2630 Taastrup
- Published
IMPETUS: 1. year report on research at KVL Taastrup, DK
Ewert, F. & Porter, John Roy, 1998, Improving wheat model accuracy and suitability for regional impact assessment (IMPETUS) : EC project ENV4-CT97-0496 : report on 1. year. Mitchell, R. A. C. (ed.). p. B25-B32 9 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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
- Published
Impacts of Climate Change on renewable Energy Sources and their Role in Nordic and Baltic Energy Systems: Case of Bio-Fuels: Research Notes
Venäkäinen, A., Kellomäki, S., Sigurdsson, B., Linder, S., Porter, John Roy & Kull, O., 2007, University of Joensuu, Faculty of Forestry. 86 p.Research output: Book/Report › Book › Research
- Published
Implications of crop model ensemble size and composition for estimates of adaptation effects and agreement of recommendations
Rodríguez, A., Ruiz-Ramos, M., Palosuo, T., Carter, T. R., Fronzek, S., Lorite, I. J., Ferrise, R., Pirttioja, N., Bindi, M., Baranowski, P., Buis, S., Cammarano, D., Chen, Y., Dumont, B., Ewert, F., Gaiser, T., Hlavinka, P., Hoffmann, H., Höhn, J. G., Jurecka, F. & 17 others, , 2019, In: Agricultural and Forest Meteorology. 264, p. 351-362 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Interaction between soils and crop production: rational systems
Porter, John Roy, 1998. 2 p.Research output: Contribution to conference › Paper › Research
- 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. 2518-2529Research output: Contribution to journal › Review › Research › peer-review
- 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
- 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
- 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
- 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
- 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
- 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. 18-19Research output: Contribution to journal › Journal article › Research
- 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
- Published
Making science more effective for agriculture
Sadras, V., Alston, J., Aphalo, P., Connor, D., Denison, R. F., Fischer, T., Gray, R., Hayman, P., Kirkegaard, J., Kirchmann, H., Kropff, M., Lafitte, H. R., Langridge, P., Lenne, J., Mínguez, M. I., Passioura, J., Porter, J. R., Reeves, T., Rodriguez, D., Ryan, M. & 2 others, , 2020, Advances in Agronomy. Sparks, D. L. (ed.). Academic Press, p. 153-177 25 p. (Advances in Agronomy, Vol. 163).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
- Published
Making sense of wheat development: a critique of methodology
Jamieson, P. D., Brooking, I. R., Semenov, M. A. & Porter, John Roy, 1998, In: Field Crops Research. 55, p. 117-127 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Mennesker kan ikke ejes
Toft, J. & Porter, John Roy, 1996, In: Dagbladet Information. 30Research output: Contribution to journal › Journal article › Communication
- Published
Modeling Grain Nitrogen Accumulation and Protein Composition to Understand the Sink/Source Regulation of Nitrogen Romobilisation for Wheat
Martre, P., Porter, John Roy, Jamieson, P. & Triboï, E., 2003, In: Plant Physiology. 133, p. 1959-1967 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Modelling CO2 effects on wheat with varying nitrogen supplies
Jamieson, P., Berntsen, J., Ewert, F., Kimball, B. A., Olesen, J. E., Pinter, P. J., Porter, John Roy & Semenov, M., 2000, In: Agriculture, Ecosystems & Environment. 82, p. 27-37 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Modelling CO2 effects on wheat with varying water supply
Ewert, F., Rodriguez, D., Mitchell, R. A. C., Semenov, M., Porter, John Roy, Goudriaan, J., Jamieson, P., Kimball, B. A., Manderscheid, R., Fangmeier, A. & Fereres, E., 2000. 1 p.Research output: Contribution to conference › Paper › Research
- 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
- 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
- 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
- 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
- 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. 1997Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Modelling protein content and composition in relation to crop nitrogen dynamics for wheat
Martre, P., Jamieson, P. D., Semenov, M. A., Zyskowski, R. F., Porter, John Roy & Triboi, E., 2006, In: European Journal of Agronomy. 25, 2, p. 138-154 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Modelling protein content and composition in wheat
Jamieson, P., Martre, P., Samoli, V., Porter, John Roy, Zyskowski, R. F., Semenov, M. & Triboi, E., 2006. 1 p.Research output: Contribution to conference › Poster › Research
- 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
- Published
Modelling the effects of Co2 and drought on wheat for different climatic conditions and cultivars
Ewert, F., Rodriguez, D., Jamieson, P., Semenov, M. A., Mitchell, R. A. C., Goudriaan, J., Porter, John Roy, Manderscheid, R., Weigel, H. J., Fangmeier, A., Fereres, E. & Villalobos, F., 2000, Improving wheat model accuracy and suitability for regional impact assessment 1998-2000 : IMPETUS final report: EC project ENV4-CT97-0496. p. 108-136 29 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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
- Published
Modelling the responses of grain protein and composition to environmental variations
Martre, P., Triboï, E., Jamieson, P. D. & Porter, John Roy, 2004. 1 p.Research output: Contribution to conference › Paper › Research
- Published
Move on to a carbon currency standard
Porter, John Roy & Wratten, S., 2014, In: Nature Study. 506, p. 295 1 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
- 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
- Published
Obituary: E.J.M. Kirby
Hay, R. K. M. & Porter, John Roy, 2011, In: Journal of Agricultural Science. 149, 4, p. 401 1 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Opinion: Agriculture green development
Porter, John Roy, 2020, In: Frontiers of Agricultural Science and Engineering. 7, 1, p. 117-119 3 p.Research output: Contribution to journal › Letter › Research › peer-review
- Published
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
- Published
Ozone effects on wheat in relation to CO2: modelling short-term and long-term responses of leaf photosynthesis and leaf duration
Ewert, F. & Porter, John Roy, 2000, In: Global Change Biology. 6, p. 735-750 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Patent confusion in law on new plant varieties
Porter, John Roy, 2000Research output: Other contribution › Communication
- 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
- 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
- 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
- Published
Plant science and the food security agenda
Ingram, J. S. I. & Porter, John Roy, 2015, In: Nature Plants. 1, 2 p., 15173.Research output: Contribution to journal › Comment/debate › Research
- 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
- Published
Post-cold-storage conditioning time affects soil denitrifying enzyme activity
Chirinda, N., Olesen, J. E. & Porter, John Roy, 2011, In: Communications in Soil Science and Plant Analysis. 42, 17, p. 2160-2167 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- Published
Quantification and valuation of ecosystem services in diverse production systems for informed decision-making
Ghaley, Bhim Bahadur, Vesterdal, Lars & Porter, John Roy, 2014, In: Environmental Science & Policy. 39, p. 139-149 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantification of uncertainty in climate change impact assessment
Downing, T. E., Barrow, E. M., Brooks, R. J., Butterfield, R. E., Carter, T. R., Harrison, P. A., Hulme, M., Olesen, J. E., Porter, John Roy, Schellberg, J., Semenov, M. A., Vinther, F. P., Wheeler, T. R. & Wolf, 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. 415-434 20 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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
- Published
Rate of change in harvest index during grain-filling of wheat
Moot, D. J., Jamieson, P. D., Henderson, A. L., Ford, M. A. & Porter, John Roy, 1996, In: Journal of Agricultural Science. 126, p. 387-395 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- Published
Relationship between C:N/C:O stoichiometry and ecosystem services in managed production systems
Ghaley, Bhim Bahadur, Sandhu, H. S. & Porter, John Roy, 2015, In: P L o S One. 10, 4, 14 p., e0123869.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- Published
Report to the 3. CLIVARA meeting - Avignon, France, March 15-19, 1997
Porter, John Roy & Wollenweber, B., 1997Research output: Other contribution › Communication
- 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
- 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
- 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
- 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
- Published
Rising temperatures are likely to reduce crop yields: correspondence
Porter, John Roy, 2005Research output: Other contribution › Communication
- Published
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
Sansford, C., Murray, G., Brennan, J., Leth, V., Porter, John Roy, Kelly, P., Miglietta, F., Riccioni, L., Magnus, H. & Petrson, G., 2006, EC. 164 p. (Deliverable Report DL 6.1). (Deliverable Report 6.5).Research output: Book/Report › Report › Research
- Published
Root carbon input in organic and inorganic fertilizer-based systems
Chirinda, N., Olesen, J. E. & Porter, John Roy, 2012, In: Plant and Soil. 359, 1-2, p. 321-333 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scaling-up AFRCWHEAT2 model to assess phenological development for wheat in Europe
Harrison, P. A., Porter, John Roy & Downing, T. E., 2000, In: Agricultural and Forest Meteorology. 101, p. 167-186 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Security and sovereignty of food and land in Camberra, Copenhagen and Tokoy
Porter, John Roy, Deutsch, L., Dumaresq, D., Dyball, R. A. & Kazuhiko, T., 2010, The Ecological Society of America95th Annual Meeting,.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
- 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
- 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
- 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
- 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
- Published
Simulation of soil organic carbon effects on long-term winter wheat (Triticum aestivum) production under varying fertilizer inputs
Ghaley, Bhim Bahadur, Wosten, H., Olesen, J. E., Schelde, K., Baby, S., Karki, Y. K., Borgesen, C. D., Smith, P., Yeluripati, J., Ferrise, R., Bindi, M., Kuikman, P., Lesschen, J. & Porter, John Roy, 2018, In: Frontiers in Plant Science. 9, p. 1-9 1158.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Soil properties, crop production and greenhouse gas emissions from organic and inorganic fertilizer-based arable cropping systems
Chirinda, N., Olesen, J. E., Porter, John Roy & Schjønning, P., 2010, In: Agriculture, Ecosystems & Environment. 139, 4, p. 584-594 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- Published
Spring Wheat Leaf Appearance and Temperature: Extending the Paradigm?
MCMaster, G. S., Wilhelm, W. W., Palic, D. B. & Porter, John Roy, 2003, In: Annals of Botany. 91, 6, p. 697-705 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Summary for policymakers
Field, C. B., Barros, V. R., Mastrandrea, M. D. & Porter, John Roy, 2014, Climate change 2014: impacts, adaptation and vulnerability. . Vol. Part A. p. 1-32 32 p.Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research › peer-review
- 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
- 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
- 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
- Published
Temperature, plant development and crop yields
Atkinson, D. & Porter, John Roy, 1996, In: Trends in Plant Science. 1, 4, 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Temperatures and the growth and development of maize and rice: a review
Sánchez, B., Rasmussen, A. & Porter, John Roy, 2014, In: Global Change Biology. 20, 2, p. 408-417 10 p.Research output: Contribution to journal › Review › Research › peer-review
- 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
- 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, , 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
- 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
- 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
- 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
- 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
- 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
- Published
The value of producing food, energy and ecosystem services within an agro-ecosystem
Porter, John Roy, Costanza, R., Sigsgaard, L, Sandhu, H. S. & Wratten, S. D., 2007, Nature Precedings, 27 p.Research output: Working paper
- 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
- Published
- Published
- Published
The ¤final report of IACR Long Ashton Research Station to ESPACE-Wheat
Porter, John Roy & Ewert, F., 1995Research output: Other contribution › Communication
- 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
- 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
- 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
- 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
- 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
- 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
- Published
Valuation of ecosystem services in organic cereal crop production systems with different management practices in relation to organic matter input
Fan, F., Henriksen, Christian Bugge & Porter, John Roy, 2016, In: Ecosystem Services. 22, Part A, p. 117-127 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Variability and scaling: matching methods and phenomena
Marshall, B., Crawford, J. W. & Porter, John Roy, 1997, Scaling-up : from cell to landscape. Gardingen, P. R. V., Foody, G. M. & Curran, P. J. (eds.). Cambridge: Cambridge University Press, Vol. 63. p. 253-272 20 p. (Society for Experimental Biology seminar series).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
ID: 3148511
Most downloads
-
7857
downloads
Food security and food production systems
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
Published -
7176
downloads
Emergy signature as a basis for sustainability valuation of agro-ecosystems
Research output: Contribution to conference › Poster › Research
Published -
1165
downloads
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
Published