The apple is a fruit, the product of the apple tree, which belongs to the Rosaceae family. The apple tree is one of the most widely cultivated fruit trees in the world and is the third most commercially traded fruit, after citrus fruits and bananas. The apple tree was known since prehistoric times, both in its wild and cultivated forms, and its origin is believed to be in the region south of the Caucasus. The tree has been cultivated since ancient times in Asia and Europe, but with the discovery of the New World and the settlement of colonists, many European varieties were brought to America.
Today, there are approximately 2,000 varieties of apples worldwide. The different apple varieties are distinguished by their color (greenish, waxy, yellow, red, dark-colored), ripening period (summer, winter, autumn), shape (round, oval, elongated), and the texture and quality of the fruit’s flesh (watery, soft, tender, mealy, crisp). The fruit of the apple tree is a false fruit. The edible part is made up of tissues that originate from the thickening of the calyx base, the corolla, and the stamens. It has various shapes, from spherical to elongated, with flesh that can be crisp or mealy, flavorful, and can be sweet, sour, or mildly acidic, and the seeds are brown in color.