We use cookies on our website. Some are necessary for the operation of the website. You can also allow cookies for statistical purposes. You can adjust the data protection settings or agree to all cookies directly.
Data Protection Declaration
Imprint
Effects of climate change on yield and yield quality of selected crops – understanding the mechanistic background of CO2, heat and drought effects on wheat
Project
Project code: DFG FOR 1695
Contract period: 01.02.2012
- 31.01.2015
Purpose of research: Applied research
This subroject aims to provide experimental data to gain a basic understanding of crop response in terms of yield formation and yield quality under climate change. Data will directly feed into model development and validation, and will be available to the whole consortium. Mini canopies of wheat will be exposed in climatic chambers to selected components of climate change, in particular elevated CO2, periods with high air temperatures, and soil drought, alone and in combination, at different crop growth ‘windows’. Wheat is used as model crop to make use of previous data and to add new constellations of climate factors not yet experimentally covered. Carbon and nitrogen acquisition and redistribution will be followed, and water relations and photosynthetic performance will be assessed by means of leaf gas exchange and high-resolution whole 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. C/N ratio will serve as a proxy for yield quality in terms of modelling. Metabolic profiling of grain constituents will yield information on subtle effects of climate change on yield quality. In addition, field assessments at the research sites will be continued to compare climatic chamber and field data and to provide the Research Unit with field data on crop development and yield.
Section overview
Subjects
- Crop Production
- Agroecology
- Climate Change
