Ricerc@Sapienza

UAV based photogrammetry and 3D mapping are gaining fast and wide applications around the world majorly due to the relatively low-cost advantage it offers in the acquisition of high resolution multispectral acquisitions, compared to Aerophotogrammetry and satellite acquisitions. This research seeks to demonstrate the applicability of UAV photogrammetry visible, multispectral and thermal in investigating some physiological indexes of plants, reflecting plant physiological traits.

A controlled experiment was conducted in order to understand how functional and structural traits of species with different leaf habits (Fraxinus ornus and Quercus ilex) shift as a consequence of nitrogen (N) addition (30 Kg ha yr-1), and to explore the effect that nitrogen has on the water stress response. The experiment was divided in two stages: stage I, nitrogen addition under well water condition; stage II, nitrogen addition under drought. Functionality of the photosynthetic machinery, growth and biomass partitioning were assessed. The N content at leaf level increases in F.

Corylus avellana L. (hazelnut) is one of the world’s major nut crops, and is considered a sensitive species to water stress having a low capacity for stomatal regulation. Knowledge of hazelnut response to water stress is important from an economical point of view since water stress affects fruit quality and production. In this context, the effects of three different water regimes imposed during leaf development of hazelnut saplings were analyzed.