| Records |
| Author |
Eyshi Rezaei, E.; Webber, H.; Gaiser, T.; Naab, J.; Ewert, F. |
| Title |
Heat stress in cereals: Mechanisms and modelling |
Type |
Journal Article |
| Year |
2015 |
Publication |
European Journal of Agronomy |
Abbreviated Journal |
European Journal of Agronomy |
| Volume |
64 |
Issue |
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Pages |
98-113 |
| Keywords |
high temperature; heat stress; cereal yield; climate change impact; crop modelling; high-temperature stress; tropical maize hybrids; triticum-aestivum l; high-yielding rice; induced spikelet sterility; stem reserve mobilization; climate-change impacts; oryza-sativa l.; grain-yield; kernel set |
| Abstract |
Increased climate variability and higher mean temperatures are expected across many world regions, both of which will contribute to more frequent extreme high temperatures events. Empirical evidence increasingly shows that short episodes of high temperature experienced around flowering can have large negative impacts on cereal grain yields, a phenomenon increasingly referred to as heat stress. Crop models are currently the best tools available to investigate how crops will grow under future climatic conditions, though the need to include heat stress effects has been recognized only relatively recently. We reviewed literature on both how key crop physiological processes and the observed yields under production conditions are impacted by high temperatures occurring particularly in the flowering and grain filling phases for wheat, maize and rice. This state of the art in crop response to heat stress was then contrasted with generic approaches to simulate the impacts of high temperatures in crop growth models. We found that the observed impacts of heat stress on crop yield are the end result of the integration of many processes, not all of which will be affected by a “high temperature” regime. This complexity confirms an important role for crop models in systematizing the effects of high temperatures on many processes under a range of environments and realizations of crop phenology. Four generic approaches to simulate high temperature impacts on yield were identified: (1) empirical reduction of final yield, (2) empirical reduction in daily increment in harvest index, (3) empirical reduction in grain number, and (4) semi-deterministic models of sink and source limitation. Consideration of canopy temperature is suggested as a promising approach to concurrently account for heat and drought stress, which are likely to occur simultaneously. Improving crop models’ response to high temperature impacts on cereal yields will require experimental data representative of field production and should be designed to connect what is already known about physiological responses and observed yield impacts. (C) 2014 Elsevier B.V. All rights reserved. |
| Address |
2016-06-01 |
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| Language |
English |
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| Series Editor |
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Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1161-0301 |
ISBN |
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Medium |
Review |
| Area |
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Expedition |
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Conference |
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| Notes |
CropM, ft_macsur |
Approved |
no |
| Call Number |
MA @ admin @ |
Serial |
4741 |
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| Author |
Dirnböck, T.; Bezák, P.; Dullinger, S.; Haberl, H.; Lotze-Campen, H.; Mirtl, M.; Peterseil, J.; Redpath, S.; Singh, S.J.; Travis, J.; Wijdeven, S.M.J. |
| Title |
Critical Scales for Long-Term Socio-ecological Biodiversity Research |
Type |
Book Chapter |
| Year |
2013 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
123-138 |
| Keywords |
TradeM |
| Abstract |
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| Address |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
Dordrecht |
Editor |
Singh, S.J.; Haberl, H.; Chertow, M.; Mirtl, M.; Schmid, M. |
| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
Long Term Socio-Ecological Research |
Abbreviated Series Title |
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| Series Volume |
Human-environment interactions (2) |
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| Notes |
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Approved |
no |
| Call Number |
MA @ admin @ |
Serial |
2390 |
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| Author |
Del Prado, A.; van den Pol-van Dasselaar, A.; Chadwick, D.; Misselbrook, T.; Sandars, D.L.; Audsley, E.; Mosquera-Losada, M.R. |
| Title |
Synergies between mitigation and adaption to climate change in grassland-based farming systems |
Type |
Conference Article |
| Year |
2014 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
LiveM |
| Abstract |
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Conference |
25th EGF General Meeting on “EGF at 50: The Future of European Grasslands”. - Grassland Science in Europe 19. Aberystwyth, Wales : EGF, 2014 - p. 61 - 74., 2014-09-07 to 2014-09-11 |
| Notes |
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Approved |
no |
| Call Number |
MA @ admin @ |
Serial |
2386 |
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| Author |
Dáder, B.; Fereres, A.; Trebicki, P. |
| Title |
Studying Myzus persicae performance and feeding behaviour, and associated plant viruses under increasing CO2 |
Type |
Conference Article |
| Year |
2014 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
CropM |
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Annual Conference of the Australian Entomological Society. Canberra, Australia., 2014-09-28 to 2014-10-01 |
| Notes |
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Approved |
no |
| Call Number |
MA @ admin @ |
Serial |
2378 |
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| Author |
Dalgaard, T.; Kjeldsen, C.; Meyer-Aurich, A.; Özkan, S.; Rolinski, S.; Köchy, M.; Olesen, J.E.; Brouwer, F.; van den Pol-van Dasselaar, A.; Kipling, R. |
| Title |
Farming systems models for regional scale impact assessment in Europe – case studies of N-losses and greenhouse gas emissions |
Type |
Conference Article |
| Year |
2014 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
LiveM |
| Abstract |
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Conference |
Scaling in global, regional and farm models, 2014-09-24 to 2014-09-24 |
| Notes |
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Approved |
no |
| Call Number |
MA @ admin @ |
Serial |
2380 |
| Permanent link to this record |
