Re: HYB: Purple Leaf Base
- Subject: Re: HYB: Purple Leaf Base
- From: i*@netscape.net
- Date: Tue, 31 Jul 2001 11:50:25 -0000
--- In iris-talk@y..., neilm@c... wrote:
> --- In iris-talk@y..., "Jeff and Carolyn Walters" <jcwalters@b...>
> wrote:
> "...in reciprocal crosses between GNUS FLASH (non-pbf) and TENNESSEE
> WOMAN (pbf)almost exactly half the seedlings showed pbf whether TW
> was the pollen or pod parent...."
>
> Jeff, this is very useful information.
>
> Mel Suiter's OCHOCO, a half-sib to TOMECO, had pbf that extended a
> third the way up the fan and was intense in color. At the other
> extreme, Keppel's HAPPENSTANCE has just a touch of violet pigment in
> the base of the fan. We could assume that we're dealing with the
> same single-gene dominant in both cases, modified by other factors.
>
> Another possibility is that pbf is as complex as many TB
> characteristcs, perhaps involving an allelic series as in plicatas.
>
> There has been enough interest over the years in developing
> decorative foliage colors in iris--mixtures of variegation and
> anthocyanins--that speculation and work in these genetics is
> certainly worthwhile. At one time Gordon Plough was keenly
> interested both in pbf and in the colors showing up on bloomstalks
> and spathes in some varieties, but I have no idea what became of his
> interest.
>
> Neil Mogensen zone 6b/7a near Asheville, NC
Thanks for all the information. The only cross that I kept track of is
Canadian Streaker X Honky Tonk Blues, both purple leaf base. The only
plant I kept (variagated foliage) doesn't have pbf, and to the best of
my recall, neither did any of the siblings. Of course there is the
possibility that I had mixed up the tags during planting.
I have noted that some pbf is more red then purple and certainly there
is a large variation in extent of distribution. I have also noted
plants that have dark purple on the flower spathes that don't have
much colour on the base of the plant.
With it being a chromosomal inheritance there should be no effect of
selecting plants with more intense colour.
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