Re: OT: Night-Bloomers, now Vespertine Iris

Sharon McAllister wrote:
> 
> This is a complex  trait, whose genetics I'm
> still trying to fathom -- so it will NOT be a
> part of HYB 201!

There may be some physics of light involved here Sharon as well. Some
aspects that I can think of are:

As sunset (and sunrise) longer wavelenghts of light (red side of the
spectrum)n are reracted more than the short wavelenghts.

Moonlight (as well as sunlight) is not refracted except at moonrise and
moonset, but moonlight less so. 

And if I am not mistaken reflected light (i.e., moonlight) is polarized.
Now this may be irrelevent because moonlight may be reflected from so
many surfaces so as to render the polarization meaningless. (i.e. so
jumbled in all directions as to effectively be unpolarized)

Brightest moonlight comes from the moon when overhead and so is affected
by scattering (the same effect that gives us a blue sky).

I have to hit the books to verify some of this, so if anyone has
corrective information *please* chime in.

I guess mostly what I am saying is that you have to be cognizant of the
light source as well.




John                     | "There be dragons here"
                         |  Annotation used by ancient cartographers
                         |  to indicate the edge of the known world.

John Jones, jijones@ix.netcom.com
Fremont CA, USDA zone 8/9 (coastal, bay) 
Max high 95F/35C, Min Low 28F/-2C average 10 days each
Heavy clay base for my raised beds.
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