Lobet, GuillaumeHuljev, PierrePierreHuljev2025-05-142025-05-142025-05-142024https://hdl.handle.net/2078.2/41610Cereals represent the foundation of the global food supply, sustaining both animal and human diets. It is of the upmost importance to maintain this level of production to ensure the provision of sufficient food for the global population. However, the potential impact of global warming and the resulting increase in drought on food security can not be ignored. As a result, certain species may become less productive which could have serious consequences for global food security. Consequently, there is a growing interest in root systems, given that it is in the subsoil that nutrients and water are absorbed. Unfortunately, our understanding of the influence of root systems remains limited due to their hard sampling. However, our knowledge is evolving, and new techniques are becoming increasingly precise. More specifically, computational tools might help investigate the influence of architecture on water. This work focused on characterizing the root and hydraulic architecture of 3 cereal species present in Belgium. 3 varieties for each species were taken from the CRA-W reserve. It highlighted the anatomical differences between these species on the basis of previously selected parameters. Based on the values of these parameters, root architectures could be simulated using the CRootBox model. They turned out to be very similar, because many of the parameters used were common to all 3 species. As for the hydraulic results, it was determined that compared with the other 2, spelt is the species with the least potential of the 3 to withstand drought. To make these resutls realistic, many improvements are needed to be: taking more root parameters specific to these species and determining hydraulic conductivities using cross-sections. The next steps are to be able to couple these results with a crop prediction model and to be able to simulate the yield of these plants under certain soil and weather conditions.CerealsRoot systemHydraulic ArchitectureCRootBoxMARSHALModellingWater Uptaketext::thesis::master thesisthesis:49037