Orange trees are widely grown in tropical and subtropical climates for its sweet fruit, which can be eaten fresh or

processed to obtain juice, and for its fragrant peel. They have been the most cultivated tree fruit in the world since 1987, and sweet oranges account for approximately 70% of the citrus production. In 2010, 68.3 million tonnes of oranges were grown worldwide, particularly in Brazil and in the US states of California and Florida.