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Re: Stan's hot tomato

I leave my lights on 20 hours a day, but in an unheated shed.  My
brassicas and lettuce now have 2 true leaves but are only about 1"
(2.5cm) tall.  And they have nice, husky stems as well, with seed leaves
about 1/2" (1.25 cm) across.  Just about perfect.  But I was gone over
the last week and my onions did not do so well.  May have to supplement
with sets this year. :-(

Steve

Michael D. Cook wrote:
> 
> At 03:37 PM 3/1/98 -0600, you wrote:
> 
> >     Also, does anyone out there know if there are certain colors that
> >the plants can't see at night?  I'm afraid that the light may stop the
> >plants nighttime part of photosynthesis.  At worst, I will figure some
> >way to cover the light without stopping the heat.
> 
> Hi, Stan.  I am not sure it matters, if your plants are still seedlings.  I
> keep my seedlings under fluorescent lights for 24 hrs. (indoors), with no
> harm.  I have heard that plants need to be 'rested' at least 8 hrs. at
> night, but then I found out that commercial growers often use 24-hr.
> lighting, so I tried it.  No problems, and my plants came out stockier and
> with shorter internodes.
> 
> Perhaps it depends on the light source.  My two 40-watt fluorescents are a
> long way from the intensity of spring or summer sunlight.  Your Christmas
> lights undoubtedly are a ways off, as well.
> 
> Sheila Smith
> mikecook@pipeline.com
> Z 5/6
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