chilling requirement

• Historical chill hours at Byron and peach production in Georgia

  Chunxian Chen

  April 6, 2023

  Chill hours (CH) are a sum of hours below 7.2 ℃ (45 ℉) between Oct 1st to next Feb 15th, often used to estimate  if the chilling requirement of a peach cultivar is satisfied and ready for timely budbreak in regions (e.g., mid GA) where the spring begins to warm by late February. CH were…

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