Re: [tomato] Off Topic Jack Pine (
Thu, 11 Mar 1999 17:34:58 EST

In a message dated 3/10/99 6:28:59 PM Eastern Standard Time, writes:

 Speaking of germination here is a wild one. The Jack Pine needs
 150F for germination. How does it grow in Minn.? Seeds germinate
 after a forest fire.

Actually the fire is needed to "open" up the pine cones, as they are normally
in a "closed" state.  The fire clears the area, which is what keeps the Jack
Pine stands going.  The cones open with the heat as a trigger, and have a nice
open area in which to grow.  Kirtland's Warbler only nests in Jack pines, so
stands need to be kept going.  A number of years ago there was a controlled
burn that got out of hand here in Michigan, burnt quite a few acres, but the
pines loved it.