DFG-Forschergruppe "Regional Climate Change": Improved process understanding of CO2-induced mechanisms on yield and yield quality of selected field-grown wheat genotypes
- Status
- current
- Project begin
- 01.02.2012
- Project end
- 31.07.2018
- Sponsor mark
- DFG: FA 504/4-1,2 & FOR 1695
- Project-Homepage
- https://klimawandel.uni-hohenheim.de
- Keywords
- Ertragsbildung, Genotypen, Getreidequalität, Klimaänderung, Weizen
Carbon dioxide (CO2) is emitted from various human activities. This causes atmospheric CO2 enrichment and in turn climate warming as well as changes in precipitation patterns, thus affecting agro-ecosystems. Besides effects on crop yield, CO2 enrichment and the interactions with other environmental factors might also have deleterious effects on wheat grain quality. However, the underlying crop physiological processes are far from being clear. The aim of this project is thus to provide experimental data to improve the mechanistic understanding of crop response in terms of yield formation and yield quality under climate change. Wheat will be used as model crop to make use of previous data and to fill some of the still existing gaps with regard to physiological responses of crops under climate change. Two contrasting wheat genotypes will be exposed in a free-air CO2 enrichment (FACE) system in the field in order to follow nutrient acquisition and allocation, and water relations and photosynthetic performance will be assessed by means of leaf gas exchange and actual plant transpiration measurements. Stable isotope analyses (13C, 15N) will aid to track C and N redistribution and to gain integrated estimates of water use efficiency and water relations. Besides targeted analyses, we will use metabolomic and proteomic approaches to identify subtle effects of climate change on grain yield quality. We will also focus on comprehensive data evaluation (e.g., meta-analyses), including the impacts of selected constellations of climate factors covered by previous experiments, in particular extreme events such as high temperature and droughts and nitrogen forms, in order to elucidate the physiological processes. Data will also be used to model impacts of climate change on crop growth and yield quality based on explicit simulation of plant internal transport processes. In addition, field assessments at the research sites and for “new crops” will be performed with regard to crop development and crop yield. Data will be provided to the whole consortium for model calibration and validation.
Subproject P4 of DFG Research Unit 1695 "Agricultural Landscapes under Global Climate Change – Processes and Feedbacks on a Regional Scale". This subproject is a follow-up of the subproject entitled "Effects of climate change on yield and yield quality of selected crops – understanding the mechanistic background of CO2, heat and drought effects on wheat" funded during 2012-2015.
Involved persons
Involved institutions
Sponsors
Publications in the course of the project
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Coupling the land surface model Noah-MP with the generic crop growth model Gecros: Model description, calibration and validation
2018: Ingwersen, J., Högy, P., Wizemann, H.D., Warrach-Sagi, K., Streck, T.
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Modeling acclimation of leaf photosynthesis to atmospheric CO2 enrichment
2013: Biernath, C.J., Bittner, S., Klein, C., Gayler, S., Hentschel, R., Hoffmann, P., Högy, P., Fangmeier, A., Priesack, E.
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Grain quality characteristics of spring wheat (Triticum aestivum) as affected by free-air CO2 enrichment
2013: Högy, P., Brunnbauer, M., Koehler, P., Schwadorf, K., Breuer, J., Franzaring, J., Zhunusbayeva, D., Fangmeier, A.
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Towards optimizing experiments for maximum-confidence model selection between different soil-plant models
2013: Wöhling, T., Geiges, A., Nowak, W., Gayler, S., Högy, P., Wizemann, H.-D.
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Pest and disease abundance and dynamics in wheat and oilseed rape as affected by elevated atmospheric CO2 concentrations
2013: Oehme, V., Högy, P., Franzaring, J., Zebitz, C.P.W., Fangmeier, A.
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Effects of elevated atmospheric CO2 concentrations on phloem sap composition of spring crops and aphid performance
2013: Oehme, V., Högy, P., Zebitz, C.P.W., Fangmeier, A.
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Yield and yield quality of major cereals under climate change. In: Wake up before it is too late - Make agriculture truly sustainable now for food security in a changing climate. Chapter 1. Key development challenges of a fundamental transformation
2013: Högy, P., Fangmeier, A.
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Combining peak- and chromatogram-based retention time alignment algorithms for multiple chromatography-mass spectrometry datasets
2012: Hoffmann, N., Keck, M., Neuweger, H., Wilhelm, M., Högy, P., Niehaus, K., Stoye, J.
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Comparison of Noah simulations with Eddy covariance and soil water measurements at a winter wheat stand
2011: Ingwersen, J., Steffens, K., Högy, P., Warrach-Sagi, K., Wizemann, H.-D., Zhunusbayeva, D., Poltoradnev, M., Gäbler, R., Fangmeier, A., Wulfmeyer, V., Streck, T.
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Evaluating the ability of four crop models to predict different environmental impacts on spring wheat grown in open-top chambers
2011: Biernath, C.J., Gayler, S., Bittner, S., Klein, C., Högy, P., Fangmeier, A., Priesack, E.
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Effects of atmospheric CO2 enrichment on biomass, yield and low molecular weight metabolites in wheat grain
2010: Högy, P., Keck, M., Niehaus, K., Franzaring, J., Fangmeier, A.
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Atmospheric CO2 enrichment changes the wheat grain proteome
2009: Högy, P., Zörb, C., Langenkämper, G., Betsche, T., Fangmeier, A.
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Multiresponse, multiobjective calibration as a diagnostic tool to compare accuracy and structural limitations of five coupled soil-plant models and CLM3.5
2013: Wöhling,T., Gayler, S., Priesack, E., Ingwersen, J., Wizemann, H.-D., Högy, P., Cuntz, M., Attinger, S., Wulfmeyer, V., Streck, T.
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Incorporating dynamic root growth enhances the performance of Noah-MP at two contrasting winter wheat field sites
2014: Gayler, S., Wöhling,T., Grzeschik, M., Ingwersen, J., Wizemann, H.-D., Warrach-Sagi, K., Högy, P., Attinger, S., Streck, T., Wulfmeyer, V.
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How well does Noah-MP simulate the regional mean and spatial variability of topsoil water content in two agricultural landscapes in southwest Germany?
2018: Poltoradnev, M., Ingwersen, J., Imukova, K., Högy, P., Wizemann, H.-D., Streck, T.
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Physiological and proteomic evidence for the interactive effects of post-anthesis heat stress and elevated CO2 on wheat
2018: Zhang, X., Högy, P., Wu, X., Schmid, I., Wang, X., Schulze, W.X., Jiang, D., Fangmeier, A.
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CO2-induced changes in wheat grain composition: meta-analysis and response functions
2017: Broberg, M., Högy, P., Pleijel, H.
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Contrasting effect of elevated atmospheric CO2 on the C/N ratio of faba bean and spring wheat residues exert only minor changes in the abundance and enzyme activities of soil proteolytic bacteria
2017: Rasche, F., Kramer, S., Enowashua, E., Mackie, M., Högy, P., Marhan, S.
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Modeling perceptions of climatic risk in crop production
2017: Reinmuth, E., Parker, P., Aurbacher, J., Högy, P., Dabbert, S.
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Simulating regional climate-adaptive field cropping with fuzzy logic management rules and genetic advance
2016: Parker, P., Ingwersen, J., Högy, P., Priesack, E., Aurbacher, J.
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Design and performance of a new FACE (free air carbon dioxide enrichment) system for crop and short vegetation exposure
2016: Fangmeier, A., Torres-Toledo, V., Franzaring, J., Damsohn, W.
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Three year observations of water vapor and energy fluxes over agricultural crops in two regional climates of Southwest Germany
2015: Wizemann, H.-D., Ingwersen, J., Högy, P., Warrach-Sagi, K., Streck, T., Wulfmeyer, V.
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Simulation-based projections of crop management and gross margin variance in contrasting regions of Southwest Germany
2015: Parker, P., Reinmuth, E., Ingwersen, J., Högy, P., Priesack, E., Wizemann, H.-D., Aurbacher, J.
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CO2 dose-response functions for wheat grain, protein and mineral yield based on FACE and open-top chamber experiments
2015: Pleijel, H., Högy, P.
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On the use of the post-closure methods uncertainty band to evaluate the performance of land surface models against eddy covariance flux data
2015: Ingwersen, J., Imukova, K., Högy, P., Streck, T.
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Effects of elevated CO2 on grain yield and quality of wheat: results from a three-year FACE experiment
2009: Högy, P., Wieser, H., Köhler, P., Schwadorf, K., Breuer, J., Franzaring, J., Muntifering, R., Fangmeier, A.