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Re: Germination temps

In a message dated 98-02-22 17:36:08 EST, you write:

<< 
 I have a question for the list members.
 Do you think is is better for seeds that need warm temps to germinate to be
 on a heat source in an area, indoors, where the air temp is fairly steady
 but on the cool side: 50 deg F.-65 deg F? Or, put the flats in the
 greenhouse, unheated, where the temps cool at night, but get much hotter
 during the day, 80 deg F-90 deg F?
 
 What do you think?
  >>
  depends on what you are growing.
Some seed need warm soil temps.
Those conditions are steady soil temps about what ever the temp they need
weather it be 70 or 80F. If the soil temp is droping below the reqired temp at
night they might not germinate.
Grabgrass is one of those seeds that must have a soil temp above a certian
range to germinate.


It is not the air temp that matters-- but soil temp.
soil losses heat slowly-so if it is getting cold at night it take time for it
to warm up in the dayt- it might be 70 air temp at noon but the soil temp
might be 60.
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