HYdrology, Drones & RAinout Shelters. A state-of-the-art, multi-sensor and drought controlled field phenotyping platform. HYDRAS is equipped to perform both above- and belowground phenotyping. This unique feature allows getting insight into the responses of plants to drought in a representative crop production environment. HYDRAS was developed to address two critical challenges in plant breeding for climate adaptation: 1. Access to below-ground plant traits 2. Translation of results from basic plant science to realistic field conditions.