What is the basis for saying fulva has cyanidin? Cyanidin produces nice
red colour in flowers were it exsits (but in combination with carotene)
I havn't heard of any evidence of it being in any iris, even in fulva.
If there is any scientific evidence I'd love to hear of it.
Chuck Chapman
-----Original Message-----
From: JamieV. <jamievande@freenet.de>
To: iris-species@yahoogroups.com
Sent: Wed, 13 May 2009 2:44 am
Subject: Re: [iris-species] last pics, I promise
Dennis,
you should give it a go. The yellow carotenes are from a completely
different pigment system and do not inherit together with the blue to
purple-red anthocyanins. The chances are good most of the seedlings
will be of a muddy tone, but some magic could occur. Although I am
unsure what actual pigments are involved with fulva and brevicaulis,
I would expect the later to be mainly delphinidin, with fulva
having cyanidin and violaxanthin. A yellow fulva should be
missing the cyanidin, but when crossed with another blue, we will see
either a partial blue + yellow, or possibly a violet-blue + yellow,
which is more or less what we see in the species fulva. I'm
sure someone has tried the cross, so you could ask around, but every
clone is slightly different genetically, therefore results will
vary.
Just do it! ;-)
--
Jamie V.
_______________________
Köln (Cologne)
Germany
Zone 8
Dennis Kramb schrieb:
Hahaha... that's great news!!! I hope you have a spectacular bloom! :)
As for me, I am starting to think about crossing a yellow fulva with a
blue brevicaulis to see what happens. I know red+blue=purple (like
Dorothea K. Williamson). Hmmm... I should just go ask the folks on the
LA Iris forum.
Dennis in Ohio
