Journal article

'Haying-off' in wheat is predicted to increase under a future climate in south-eastern Australia

JG Nuttall, GJ O'Leary, N Khimashia, S Asseng, G Fitzgerald, R Norton

Crop and Pasture Science | Published : 2012

Abstract

Under a future climate for south-eastern Australia there is the likelihood that the net effect of elevated CO2, (eCO2) lower growing-season rainfall and high temperature will increase haying-off thus limit production of rain-fed wheat crops. We used a modelling approach to assess the impact of an expected future climate on wheat growth across four cropping regions in Victoria. A wheat model, APSIM-Nwheat, was performance tested against three datasets: (i) a field experiment at Wagga Wagga, NSW; (ii) the Australian Grains Free Air Carbon dioxide Enrichment (AGFACE) experiment at Horsham, Victoria; and (iii) a broad-acre wheat crop survey in western Victoria. For down-scaled climate prediction..

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