Re: HYB:Pink:out crosses

Linda Mann picked up on my remark, "The pigment *looks*  pink only when no
violet or blue shows," about which I should make a correction.

Many dominant "I" non-blues do have a degree of pale blue or violet pigment
showing and are not exactly "white" (or yellow, pink, apricot, orange,
etc.).  An extreme example is to be seen in SILVERADO.

Combining the degree of color in Silverado with yellow is likely to result
in a fairly muddy color.  Combined with part or much of the carotenoid
pigment expressed as Lycopene might give either really muddy color, or a
much richer "pink" than in a flower without the violet showing a bit,
depending on how much of the carotenoid pigment comes through as yellow and
just where on the violet to blue range the anthocyanin pigment falls.

The pigment extraction separating out anthocyanins from carotenoids and also
separating the various yellows from Lycopene is the only way to see what is
actually going on.  Linda's "kitchen chemistry" shows this.

Most of the earliest "tttt" irises weren't recognizably "pink."  They were
"mud" at best and recognized for what they are only in hindsight.  Loomis'
SEASHELL and the 1942 crop of seedlings in David Hall's garden were the
first that anyone could recognize as actually "pink" in the Lycopene-type
pinks.

Neil Mogensen  z 7  Reg 4  western NC mountains

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