Quantifying the potential effects of regional climate change on wheat leaf rust disease in the Grand-Duchy of Luxembourg
Poster
Paper/Presentation Title | Quantifying the potential effects of regional climate change on wheat leaf rust disease in the Grand-Duchy of Luxembourg |
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Presentation Type | Poster |
Authors | El Jarroudi, Moussa (Author), Kouadio, Louis (Author), Junk, Jurgen (Author), Tychon, Bernard (Author) and Delfosse, Philippe (Author) |
Journal or Proceedings Title | Phytopathology: International Journal of the American Phytopathological Society |
Journal Citation | 106 (125), p. S4.130 |
Article Number | S4.130 |
Number of Pages | 1 |
Year | 2016 |
Publisher | American Phytopathological Society |
Place of Publication | United States |
ISSN | 0031-949X |
1943-7684 | |
Digital Object Identifier (DOI) | https://doi.org/10.1094/PHYTO-106-12-S4.1 |
Conference/Event | 2016 APS Annual Meeting |
Event Details | 2016 APS Annual Meeting Event Date 30 Jul 2016 to end of 03 Aug 2016 Event Location Tampa, United States |
Abstract | Climate change will affect wheat crop production both in the main processes of plant growth and development and in the occurrences and severities of plant diseases. We assessed the potential infection periods of wheat leaf rust WLR in a changing climate at two climatologically different sites in Luxembourg using a threshold-based model for WLR infection and progress that involves night-time hourly data of air temperature, relative humidity and rainfall. Field experiments were conducted during the 2003–2013 period at the selected sites to test the model. Projected climate data, from a multi model ensemble of regional climate models (spatial resolution 25 km) as well as an additional projection with a higher spatial resolution of 1.3 km, were used for investigating the potential WLR infection periods for two future time spans. Results showed that the infections of WLR were satisfactorily simulated at both sites during 2003–2013 period: probabilities of WLR detection were close to 1 and the critical success index ranged from 0.80 to 0.94. Regional climate projections indicated an increase in temperatures over the 2014-2050 and 2091-2100 periods compared to the reference period 1991–2000. Annual precipitation is also expected to increase slightly in the future. Further, trends in increased favourable days of WLR infection would likely occur at both sites due to projected climatic conditions more conducive than in the reference period. The methodology presented here can be readily transferred to other regions and other fungal diseases by adjusting the meteorological threshold values essential for a specific disease development. |
Keywords | climate change; wheat leaf rust disease |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Public Notes | Poster presentation. |
Byline Affiliations | University of Liege, Belgium |
International Centre for Applied Climate Science | |
Luxembourg Institute of Science and Technology, Luxembourg | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6631/quantifying-the-potential-effects-of-regional-climate-change-on-wheat-leaf-rust-disease-in-the-grand-duchy-of-luxembourg
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