Jonagold is a cultivar of apple, a cross between the crisp Golden Delicious and the blush-crimson Jonathanwhich was developed in 1953 in New York. They form a large sweet fruit with a thin skin. Because of their large size they are now favoured by commercial growers in many parts of the world. Jonagold is triploid, with sterile pollen, and as such, requires a second type of apple for pollen and is incapable of pollenizing other cultivars.
Jonagold has a green-yellow basic color with crimson, brindled covering colour.
The apple has a fluffily crisp fruit. It is juicy and aromatic and has a sweet-sour taste.
The skin can also turn out fully red or green other than Golden-Red. [ Source: Wikipedia ]