Abstract
Grapevine is an important crop in Brazil. The area of vineyards is 75,906 ha and grape production reached 1.47 million tons in 2017. The production of grapes is concentrated in Rio Grande do Sul, São Paulo and Pernambuco States, where 83% of the vineyards and 87% of the production are concentrated (IBGE, 2017). Several factors can affect grapevines potential yield and grapevines longevity…