Homogeneous zones of vegetation index for characterizing variability and site-specific management in vineyards

Characterization of the spatial variability vegetative vigor in vineyards can help improve performance site-specific management practices, or with different rates. using canopy proximal sensing has been a widely disseminated technique; however, southeastern Brazil, where utilization annual double pruning results winter harvest, knowledge role improving vineyard not yet applied. This study aimed to determine if post-veraison mapping normalized difference vegetation index could be used assess grapevine vigor, water status, physiology, yield and berry quality attributes at harvest an irrigated Brazil. was measured active sensor, distribution maps over two growing seasons vineyard, managed on basis, were generated. Attributes physiological technological maturation, leaf potential, gas exchange, production, fresh weight calculated. These allowed for determination productive potential vineyard; high levels rainfall during maturation period may reduce these determining parameters.