Re: REF: HYB: Bulletin, color patterns

I am really enjoying this issue of the Bulletin.  Wonderful details for
some of us, but I can see that folks not interested in hybridizing might
not appreciate it as much.

I kept searching for & didn't find anything about heredity & pigments of
the light colored, standard matching fall rims - recessive
amoena/variegata -ish patterns.

I wondered if a mechanism similar to the triple layered color effect
described for white falls with pigmented rims (i.e, the top, whitening
layer absent on the rim) might apply to some of the light rimmed falls
as well.

I noticed that the SDB BEING BUSY (and its seedling whose picture I
posted last spring) looked like it had a more opaque cell layer on the
back of the fall that was missing in the lighter colored rim.  Instead
of having a cell layer on top obscuring pigment in the center of the
fall, it seemed to have a layer on the back that made the upper
pigmented layers very dark.

I guess this would be a different type of pattern from the recessive
amoena/variegata pattern in TBs (<umbrata>).

--
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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