Journal article

Trade-offs between water-use related traits, yield components and mineral nutrition of wheat under Free-Air CO2 Enrichment (FACE)

A Houshmandfar, GJ Fitzgerald, AA Macabuhay, R Armstrong, S Tausz-Posch, M Löw, M Tausz

European Journal of Agronomy | Published : 2016

Abstract

This study investigated trade-offs between parameters determining water use efficiency of wheat under elevated CO2 in contrasting growing seasons and a semi-arid environment. We also evaluated whether previously reported negative relationships between nutrient content and transpiration efficiency among wheat genotypes will be maintained under elevated CO2 conditions. Two cultivars of wheat (Triticum aestivum L.), Scout and Yitpi, purportedly differing in water use efficiency related traits (e.g. transpiration efficiency) but with common genetic backgrounds were studied in a high yielding, high rainfall (2013), and in a low yielding, very dry growing season (2014) under Free-Air CO2 Enrichmen..

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Grants

Funding Acknowledgements

The AGFACE facility is jointly run by the University of Melbourne and the Victorian Department of Economic Development, Jobs, Transport and Resources (Agricultural Research Division) and received funding support by the Department of Agriculture and Water Resources, the Grain Research and Development Corporation (GRDC), and the Australian Research Council (ARC). We gratefully acknowledge the contribution of the AGFACE field team lead by Russel Argall, Mahabubur Mollah for operating the CO<INF>2</INF> enrichment technology, and Najib Ahmadi for laboratory management. AH received a Melbourne International Research Scholarship.