Root traits and their potential links to plant ideotypes to improve drought resistance in common bean - Polania, Jose (Universitat Autònoma de Barcelona. Laboratori de Fisiologia Vegetal) ; Poschenrieder, Charlotte (Universitat Autònoma de Barcelona. Laboratori de Fisiologia Vegetal) ; Rao, Idupulapati (United States Department of Agriculture, USA) ; Beebe, Stephen E (Centro Internacional de Agricultura Tropical (CIAT), Colombia)