How do trees know it's fall?

boldt at math.ucsb.edu boldt at math.ucsb.edu
Fri Oct 30 00:54:26 EST 1998


Hi,

how do trees know that it is time to drop the leaves? Is it an internal clock,
the temperature, or the changing light?

Thanks,
  Axel

--
  Axel Boldt ** boldt at math.ucsb.edu ** math-www.uni-paderborn.de/~axel

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