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  • Thumbnail for List of apple cultivars
    Parentage Jonathan x Red Delicious. Cold storage 2oC 150 days. Eating Jonafree (a.k.a. Co-op 22) Urbana, Illinois, US Selected 1972, introduced 1979 Flesh...
    529 KB (3,061 words) - 08:47, 7 June 2025
  • Thumbnail for Jonathan (apple)
    (scab resistant) Idared Jonathan x Wagener Jonadel Jonathan x Delicious Jonafree Jonathan x scab-free stock Jonagold— Golden Delicious x Jonathan Jonamac—a...
    5 KB (464 words) - 05:27, 3 April 2025
  • Thumbnail for Gymnosporangium juniperi-virginianae
    various apple varieties. 'Jonathan', 'Rome Beauty', 'Wealthy', 'Stayman', 'Jonafree' and 'York Imperial' are susceptible. 'Grimes Golden', 'Red Delicious'...
    14 KB (1,591 words) - 22:46, 8 June 2025
  • Thumbnail for Apple scab
    to develop 1500 resistant cultivars, 16 of which (including 'Prima,' 'Jonafree,' and 'Goldrush') have been named released into market. Modern genetic...
    16 KB (1,918 words) - 10:53, 15 October 2024
  • Thumbnail for Venturia inaequalis
    cultivars and species. Apple cultivars such as Enterprise, Goldrush, Liberty, Jonafree, Macfree, Prima, Pristine, Redfree, and Sir Prize are resistant to apple...
    14 KB (1,588 words) - 10:40, 19 February 2025