homewhelpplease homewhelpplease
  • 25-04-2017
  • Biology
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Why is maple sap collected in the spring instead of the fall?

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ThomasTheTank
ThomasTheTank ThomasTheTank
  • 25-04-2017
Sap flows when daytime temperatures rise above freezing (32 degrees Fahrenheit / 0 Celsius) and nighttime temperatures fall below freezing.
The rising temperature creates pressure in the tree generating the sap flow.
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