PRI Disease Resistant Apple Breeding Program

 
Co-op 1
Prima
Co-op 3
Priscilla
Sir Prize
Co-op 6
Co-op 7
Co-op 8
Co-op 9
Co-op 10
Co-op 11
Co-op 12
Redfree
Co-op 14
Co-op 15
Co-op 16
Co-op 17
Co-op 18
Co-op 19
Co-op 20
Dayton
Jonafree
Williams' Pride
Co-op 24
Scarlett O'Hara
Co-op 26
Co-op 27
Co-op 28
Sundance
Enterprise
WineCrisp
Pristine
Pixie Crunch
Co-op 34
Co-op 35
Co-op 36
Co-op 37
GoldRush
CrimsonCrisp
Co-op 40
Co-op 41
Co-op 42
Juliet
Co-op 44
 
Priam
McShay
 

Co-op 7

(PRI 2023-4 = PRI 1018-9 x NJ. 154955) (Williams et al. 1972)

Brief Description

  • Fruit: 70 to 76 mm or more (2-3/4 to 3+ in.); round to short conic; yellow ground color; bright finish; heavily splashed, slightly striped, mottled in some years, 70 to 90% medium red, attractive; medium grained; cream colored, crisp and breaking flesh; sweet to mildly sub-acid and slightly aromatic in flavor, moderately juicy. Large fruit size. Fruit hangs on the tree until over-ripe.
  • Season of Maturity: Five weeks before 'Delicious'.
  • Tree: Vigorous, highly vegetative and branching, moderate tendency for biennial bearing.
  • Disease Resistance: Field immune to apple scab; susceptible to powdery mildew; highly resistant to cedar-apple rust; moderately resistant to fire blight.
  • Problems: Bland sweet, insufficient flavor, poor color development in shaded canopy; growth habit; and susceptibility to secondary diseases.
  • General Recommendation: Problems too severe for further consideration. Discarded at Lafayette.
Co-op 7

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