Journal article
Can elevated CO2 buffer the effects of heat waves on wheat in a dryland cropping system?
A Macabuhay, A Houshmandfar, J Nuttall, GJ Fitzgerald, M Tausz, S Tausz-Posch
Environmental and Experimental Botany | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2018
Abstract
Increasing atmospheric CO2 concentration [CO2] drives the rise in global temperatures, with predictions of an increased frequency of heat waves (short periods of high temperatures). Both, CO2 and high temperature, have profound effects on wheat growth and productivity. We tested whether elevated [CO2] (eCO2) has a potential to ameliorate the effects of simulated heat waves (HT) on wheat in a dryland cropping system. Wheat was field-grown at the Australian Grains Free Air CO2 Enrichment (AGFACE) facility under ambient [CO2] (∼390 ppm) or eCO2 (∼550 ppm) for two growing seasons, one with ample water supply and one of severe drought. Using heated chambers, heat waves (3-day periods of high temp..
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Funding Acknowledgements
The Australian Grains Free Air CO<INF>2</INF> Enrichment (AGFACE) program is jointly run by The University of Melbourne and Agriculture Victoria Research with funding from the Grains Research and Development Corporation and the Australian Commonwealth Department of Agriculture and Water Resources. The authors gratefully acknowledge Mahabubur Mollah (Agriculture Victoria Research) for running the CO<INF>2</INF> enrichment technology and Russel Argall (Agriculture Victoria Research) and the field team for agronomic trial management.