Journal article
Understanding crop physiology to select breeding targets and improve crop management under increasing atmospheric CO2 concentrations
M Tausz, S Tausz-Posch, RM Norton, GJ Fitzgerald, ME Nicolas, S Seneweera
Environmental and Experimental Botany | Published : 2013
Abstract
The present overview paper reviews knowledge on plant metabolism under elevated atmospheric CO2 concentrations (e[CO2]) with regard to underpinning options for the management of crop production systems and the selection of crop traits beneficial for future conditions.Better understanding of intra-specific variability in responses to e[CO2] is of great importance to breed or select best possible genotypes for future conditions. Yield increases per 100μLL-1 increase in [CO2] varied between none and over 30% among varieties of important crops. Carbon source-sink relationships are believed to play a major role in determining the ability of a plant to utilise e[CO2] and avoid downward acclimation..
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Funding Acknowledgements
Research at the Australian Grains Free Air Carbon dioxide Enrichment (AGFACE) facility is jointly run by the Victorian Department of Primary Industry (DPI) and the University of Melbourne and receives additional substantial funding from the Grains Research and Development Corporation (GRDC) and the Australian Commonwealth Department of Agriculture, Fisheries and Forestry (DAFF). We wish to acknowledge the crucial contributions of Mahabubur Mollah, AGFACE research engineer, and Russel Argall and the AGFACE team in running and maintaining the AGFACE facility. S.T.-P. gratefully acknowledges an Early Career Researcher grant by the University of Melbourne.