thumb|Sliced Jonagold
thumb|A Jonagold ripening on a tree
Jonagold is a cultivar of apple that is a cross between the crisp Golden Delicious and the blush-crimson Jonathan; the name Jonagold is a portmanteau of these two variety names. It was developed in 1943 in New York State Agricultural Experiment Station of Cornell University's College of Agriculture and Life Sciences, selected as N.Y. 43013-1 in 1953, officially released in 1968 by Roger Way.
They form a large sweet fruit with a thin skin that is green-yellow with streaks of crimson. The flesh is creamy yellow with a breaking texture and outstanding flavor. It is susceptible to the diseases apple scab, powdery mildew, and fire blight, as well as the physiological disorders bitter pit and sunburn.
In 1988, the cultivar was awarded the American Society for Horticultural Science Outstanding Fruit Cultivar Award. , it was the most widely produced apple in Belgium, where it is used in Stella Cidre, and is credited with saving the European fruit industry.
{| class="wikitable"
|+ Typical size distribution
|-
! 60-65 mm !! 65-70 mm !! 70-75 mm !! 75-80 mm !! 80-85 mm !! 85-90 mm !! 90-95 mm
|-
| 5 % || 10 % || 20 % || 34 % || 25 % || 5 % || 1 %
|}
The Jonagored Apple, a sport mutation of Jonagold discovered in Belgium in 1985, was once covered under United States Patent PP05937, now expired.
Descendant cultivars
- Shinano Sweet (Fuji × Jonagold)
- Excel Jonagold
- Jonagored