HYB: Yellow Plicatas? (was Mystery Irises)
- To:
- Subject: HYB: Yellow Plicatas? (was Mystery Irises)
- From: J* a* C* W*
- Date: Sun, 16 Apr 2000 11:21:36 -0600
> From: storylade@aol.com
>
> NOT GLAZED GOLD, bloomed yesterday. First thing after JESSIE'S SONG.
NOT
> GLAZED GOLD is a yellow plicata. Gold standards, white falls with a 1/2
plus
> gold band on the falls. Rich gold beard. Very early bloomer.
Betty,
I wonder about the term "yellow plicata" to describe your unknown yellow
iris. Most cultivars with this type of color pattern, such as JOYCE TERRY,
FRINGE OF GOLD, and FIRST INTERSTATE are not plicatas. LIGHT BEAM has been
described as a "yellow plicata", but if the iris I am growing as LB is the
genuine article, there is nothing diagnostically plicata about its
appearance. The pedigree of LB is given as BROADWAY X BEVERLY SILLS.
BROADWAY is a variegata-plicata, but the is no evidence of plicata ancestry
is the recent generations of BS's pedigree. This is not conclusive, of
course, since plicata is a recessive trait and can be present, but
unexpressed, for many generations.
At a more fundamental level, is it even possible to have a true plicata
that has a white ground color and yellow plicata markings? My understanding
is that the plicata allele, when expressed, affects only the distribution
of anthocyanin (blue-violet) pigments, not carotenoids like the
yellow-orange-pink pigments in irises.
BTW, of the cultivars I mentioned above the only one I think might be your
unknown is LIGHT BEAM, as it is the only early bloomer here among them.
Jeff Walters in northern Utah (USDA Zone 4/5, Sunset Zone 2)
jcwalters@bridgernet.com
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