Measurements of water potentials and resistances of a sorghum (Sorghum bicolar L. Moench) root-soil system

absorption d'eau agua del suelo contenido de agua en el suelo diameter diametro drought resistance eau du sol feuille hojas hygrometers leaves plant water relations racine relaciones planta agua relation plante eau roots soil water soil water content sorghum bicolor stems tallos teneur en eau du sol tige transpiration water holding capacity water uptake xilema xylem