Resumen de Up-scaling levels for drought assessment in agriculture: from leaf to the whole-vineyard
Jorge Gago Mariño, Sebastià Martorell Lliteras, C. Douthe, Sigfredo Fuentes, Magdalena Tomás Mir, Emilio Hernández García, Ll. Mir, Marc Carriquí Alcover, José Mariano Escalona Lorenzo, Pedro Pablo Gallego Veigas, Hipólito Medrano Gil
Drought importantly affects plant growth, productivity and berry quality, thus, is one of the main concerns for the agriculture and food industry worldwide.
Most of the measurements used to characterize plant status are developed at the leaf level, while the improvement of agricultural management requires an up-scaling of this information to the canopy/field level. Unfortunately, the characterization of one single plant is a time consuming, costly process; so, considering a whole agricultural field could be unaffordable. In this sense, is highly desirable for field water assessment and also phenotyping purposes, multidisciplinary and integrative tools to obtain high spatial and temporal resolution data about plant status. In this work, we show remote sensing data using a thermal camera placed in a multi-copter UAV (Unmanned Aerial Vehicle) to determine plant growth and water stress from our experimental vineyard. These data are correlated with ground-truth data obtained at leaf and stem level, gas-exchange measurements (stomatal conductance), leaf water potential and stem sap fluxes. The use of these technologies for scaling-up levels in vineyards, assessment and irrigation scheduling is discussed.
