Simulating nitrogen economy of wheat plants

Simulating nitrogen economy of wheat plants
Simulating nitrogen economy of wheat plants

The model NEMA (Nitrogen Economy Model within plant Architecture) simulates nitrogen fluxes within a wheat plant (Triticum aestivum) after flowering. Bertheloot et al.  show that the model is able to predict the time and spatial patterns of the distribution of N between organs in close agreement with observations from field experiments. In simulations, root capacity to import carbon, rather than carbon availability, limits N acquisition and ultimately N accumulation in grains, while Rubisco turnover intensity mostly affects dry matter accumulation in grains. NEMA can thus provide the basis for comprehensive mechanistic modelling of N economy at plant and crop scales.