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 28

Co-op Release Description

This selection matures from September 10 to September 18 at Urbana, Illinois, from 2 to 2 1/2 weeks after 'Prima'. Fruit 2 3/8 to 2 3/4 inches, oblate-conic. Color 75 to 99 percent medium red on a greenish yellow background, bright and attractive with conspicuous lenticels. Flesh white, crisp, medium textured, and moderately juicy. Mildly acidic, spicy, and full flavored. Dessert quality is very good to excellent. Fruit hangs well and retains texture and quality for several weeks. Co-op 28 is field immune to scab and has good resistance to cedar rust and mildew. In 1989, this selection exhibited susceptibility to fire blight in the orchard at Urbana, Illinois, and therefore is not recommended for areas where fire blight is a problem. Its vigorous, upright spreading tree blooms early to mid-season. First selected by D.F. Dayton and tested as PSER8TI9.

Source:
S.S. Korban, P.A. O'Connor, S.M. Ries, Jules Janick, J.A. Crosby, and P.C. Pecknold. 1990. Co-op 27, 28, 29, 30, and 31: Five disease-resistant apple selections released for advanced testing. Illinois A.E.S. Sta. Bul. 789.

Co-op 28

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Co-op Summary Table
Co-op Bloom Date


Brief Description
Co-op Release Description


Pedigree of Co-op 28

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