
You have already added 0 works in your ORCID record related to the merged Research product.
You have already added 0 works in your ORCID record related to the merged Research product.
<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>
A genotype, environment and management (GxExM) analysis of adaptation in winter wheat to climate change in Denmark

a b s t r a c t Wheat yields in Europe have shown stagnating trends during the last two decades, partly attributed to climate change. Such developments challenge the needs for increased production, in particular at higher latitudes, to meet increasing global demands and expected productivity reductions at lower latitudes. Cli- mate change projections from three General Circulation Models or GCMs (UKMO-HadGEM1, INM-GM3.0 and CSIRO-Mk3.1) for the A1FI SRES emission scenario for 2000 to 2100 were downscaled at a northern latitude location (Foulum, Denmark) using LARS-WG5.3. The scenarios accounted for changes in tem- perature, precipitation and atmospheric CO2 concentration. In addition, three temperature-variability scenarios were included assuming different levels of decreased temperature variability in winter and increased in summer. Crop yield was simulated for the different climate change scenarios by a cali- brated version of AFRCWHEAT2 to model several combinations of genotypes (varying in crop growth, development and tolerance to water and nitrogen scarcity) and management (sowing dates and nitro- gen fertilization rate). The simulations showed a slight improvement of grain yields (0.3-1.2 Mg ha−1) in the medium-term (2030-2050), but not enough to cope with expected increases in demand for food and feed. Optimum management added up to 1.8 Mg ha−1. Genetic modifications regarding winter wheat crop development exhibit the greatest sensitivity to climate and larger potential for improvement (+3.8 Mg ha −1 ). The results consistently points towards need for cultivars with a longer reproductive phases (2.9-7.5% per 1
- University of Copenhagen Denmark
- University of Greenwich United Kingdom
- University of Copenhagen Denmark
- University of Greenwich United Kingdom
- University of Copenhagen Denmark
adaptation, 333, winter wheat, Europe, climate change, uncertainty
adaptation, 333, winter wheat, Europe, climate change, uncertainty
