Re: HYB: ? pigments - blends vs mixing

A very good question. Basically blends are were there is an uneven distribution of one or more of the pigments. You see a number of flowers wth one pigment were the pigment is unevenly distributed. By this I 'm not referrring to plicatas but more the stuff we see with Honky Tonk Blues or Cajun Rythum for examples. When we have a n even distribution of both an oil based and a water based pigment , then we have an even colour such as a red or brown , dusty pink etc. When we combine something like the Gold Burst pigment with an even distribution of anthocynin we then get the one that are blue-viloet with rlarge red blending at hafts. Anything that has a patern (like Gold Burst) usually has an intensity gradiant of distribution of pigmets that is more noticably when it is combined with an even distribution of another pigment.
I'm now quite convinced that there are genes controlling the structure of the cell alowing certain pigments to be included or excluded and seperate genes controlling the production of pigments.

Hope this brief explenation helps. Examine some photos of just one pigment in flowers t oget a better feel for this.

Chuck Chapman

Date: Fri, 21 Oct 2005 10:34:05 -0400
From: Linda Mann <lmann@volfirst.net>
Subject: [iris] HYB: ? pigments - blends vs mixing

Neil, Chuck, anybody who has time, energy, and knowledge -

I've been looking at photos and thinking about what I see in seedlings
and would love some help in understanding why some crosses produce
blends and others produce smooth mixes of colors.

By blend, I mean two or more colors on a petal that can be seen as
separate colors up close (i.e., parts of the petal are blue, parts of
the petal are yellow) and the colors are streaked or fade in and out
from one color to the other.

=== I guess my first question is whether or not that is what most
hybridizers mean by 'blend'.

By a smooth mix of colors, I mean two pigments are present but the
result is that the petal is a third color (i.e., both yellow and blue
pigments are present, but the petal looks "red" or brown).

=== Are different pigments present in blends than are present in smooth
colors?

=== If the same pigments are involved in both blends and smooth colors,
as a pollen dauber, what do I need to know to get one vs the other?

In particular, I'm thinking about reds, "caramel" brown/tan, and orange.

I think Chuck explained oranges. Two different pigments have to be
present - pink and yellow.

Seems like there are orange blends (various shades of yellow orange to
pink orange) - are the same pigments involved?

- --
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
talk archives: <http://www.hort.net/lists/iris-talk/>
photos archives: <http://www.hort.net/lists/iris-photos/>
online R&I <http://www.irisregister.com>

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