Chilling requirement

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The chilling requirement of a fruit is the minimum period of cold weather before which the fruit-bearing tree will blossom. It is often expressed in chill hours, which can be calculated different ways but all of them involve adding up the total amount of time in a winter spent at certain temperatures.^[1][2]

[edit] References

1. ^ Chilling hours. Texas A&M University Agricultural Research & Extension Center at Overton.
2. ^ David W. Lockwood and D. C. Coston. Peach tree physiology.

[edit] External links

• gardenweb discussion of chilling requirements