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Re: HYB: gray seedling

  • Subject: [iris-photos] Re: HYB: gray seedling
  • From: "Neil A Mogensen" <neilm@charter.net>
  • Date: Wed, 4 Feb 2004 07:00:25 -0500

Linda,
 
I don't see any trace of yellow, even palest yellow, in those standards, but gray tones in iris usually indicate both oil soluble and water soluble pigments are present, but in fairly low dosage.  The co-pigments that make blue-violet anthocyanins look their bluest don't mix well with pale cream--they look gray.
 
The yellow or cream that is Tttt for the lycopene-conversion factor (pink) tends to be a warmer, brighter cream or yellow than those with lower dosages of the recessive "t."  Some yellow pigments have a faintly greenish tone--a dull, grayed green at best, but when the conversion factor is present three times the color warms and the two pigments mix visually to some delightful tones.  I suspect the unique magenta color of PATIENCE is the result of a warm cream and a warm violet present in the same flower.  There's no gray tone to the color.
 
Neil Mogensen  z 7 western NC


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