Apple Maturity Reports

Apples

All observations from UMass Cold Spring Orchard, Belchertown, MA and presumably no ReTain unless otherwise noted. 
Questions & comments: Jon Clements 413-478-7219
Note: 

  • Target maturity indeces: red color, >50%; firmness, >14 lbs.; soluble solids, >12; 
  • DA: 0.60 - 0.40 for Honeycrisp, 0.65 for Gala, 1.00 for Golden Delicious, 1.15 - 1.00 for Red Delicious (higher DA = more "green")
  • Starch index: 4-6.