Parthenocarpy in plants is a relatively unusual condition but it does occur in some of our most common fruit. This circumstance occurs when the ovary of a flower develops into a fruit without fertilization. The result is a seedless fruit. Bananas, pineapples and figs are also examples of Parthenocarpy, which occur naturally. And other fruits like grape, watermelon, orange, grapefruit and pears are also the some examples for Parthenocarpy fruits.
Apple is not parthenocarpic fruit .It is example of false fruit