Enrichment of Grapes with Zinc-Efficiency of Foliar Fertilization with ZnSO₄ and ZnO and Implications on Winemaking.

ABSTRACT: Grapes and wine are widely consumed in the world, yet their mineral content can be influenced by many factors such as the mineral composition of soils, viticulture practices and environmental conditions. In this context, considering the importance of Zn in the human physiology, the enrichment of Moscatel and Castelão grapes (white and red variety, respectively) with this nutrient prompted this study; further assessment of tissue deposition and some implications for wine production. Using two foliar fertilizers (ZnO or ZnSO₄, at 150, 450 and 900 g ha^-1), decreases in net photosynthesis and stomatal conductance occurred in both varieties, suggesting that the physiological threshold of Zn toxicity was reached without visible symptoms. Following foliar spraying with both

SUBMITTER: Daccak D 

PROVIDER: S-EPMC9182840 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature