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Keywords: APSIM Simulation Model Agricultural systems Crop Farming system Gene-to-phenotype model a b s t r a c t Agricultural systems models worldwide are increasingly being used to explore options and solutions for the food security, climate change adaptation and mitigation and carbon trading problem domains. APSIM (Agricultural Production Systems(More)
EXTENDED ABSTRACT Before any model can be used with confidence it must be tested to assess its fitness for the given task. Discussions of model goodness tend to often revolve around the various definitions of several core concepts such as " validation " or " verification ". For the purpose of this paper, we will describe model evaluation as consisting of(More)
BACKGROUND AND AIMS A model to predict anthesis time of a wheat plant from environmental and genetic information requires integration of current concepts in physiological and molecular biology. This paper describes the structure of an integrated model and quantifies its response mechanisms. METHODS Literature was reviewed to formulate the components of(More)
The response of wheat crops to elevated CO 2 (eCO 2) was measured and modelled with the Australian Grains Free-Air CO 2 Enrichment experiment, located at Horsham, Australia. Treatments included CO 2 by water, N and temperature. The location represents a semi-arid environment with a seasonal VPD of around 0.5 kPa. Over 3 years, the observed mean biomass at(More)
Light interception is a key driver of crop production. Extinction of light depends on various factors such as row spacing, plant population density and solar angle. This preliminary study shows the effects of such factors on light extinction using a functional-structural modelling approach, focusing on spring wheat. In future studies these results will be(More)