SEB Gothenburg 2017 Session Report: Crop models improvement with biological knowledge

01 Oct 2017 - By: Bertrand Muller & Pierre Martre

SEB Gothenburg 2017 Session Report: Crop models improvement with biological knowledge 

Organised by: Bertrand Muller (INRA, France) & Pierre Martre (INRA SupAgro, France)

 

Crop models are expected to orientate breeding and innovation towards more efficient varieties and cropping systems in particular to cope with climate change. However, recent inter-comparison studies have shown their prediction may strongly diverge in particular under conditions of stress combinations (high temperature, drought, elevated CO2). The session thus aimed at presenting and discussing views about where and how crop models could / should be improved, incorporating the latest findings about how crops respond to a changing climate. The first half part of the session dealt with multiple stresses in models, in particular when elevated temperature is considered. Photosynthesis and canopy temperature were in the spotlight. A second part was largely devoted to questioning the sink / source nature of growth limitation under climate change as this is a strong modeling hypothesis that structures most models. In a last part, we examined the paths to identify ideotypes using models and raised the need for both biological reality and parsimony. The session was concluded with a very active round table during which several participants raised their, sometimes contrasting, views, showing that the discussion must keep going. In Gothenburg, the annual SEB meeting where both physiologists and crop model researchers can gather sounded like a suitable place for such discussion.  

 

















Author: Bertrand Muller & Pierre Martre
Category: SEB Gothenburg 2017
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