Re: HYB: REB: good form plus vigor plus rebloom discussion from Facebook
iris@hort.net
  • Subject: Re: HYB: REB: good form plus vigor plus rebloom discussion from Facebook
  • From: B* W* <a*@aol.com>
  • Date: Wed, 3 Jul 2013 19:54:05 -0400 (EDT)
Hi Francelle,


I'm sorry, but I didn't mean to say that rebloomers are not vigorous!  I agree
with you completely.  They are vigorous.  Most of them.  Personally, I will
not introduce a rebloomer that is not vigorous.  My point was that the most
vigorous are not usually the prettiest seedlings in the cross.  Not in the
colder zones anyway.


Guess I said that most of the rebloomers for here are ugly.  But, truly, some
are really pretty but don't have other qualities needed, like height,
branching etc.  We are still looking for the silver bullet.  Even the older
rebloomers like 'Immortality' have not proven to be great in breeding.


Some irises rebloom well, but do not breed rebloomers of the same quality.  We
need a bunch of the breeders that will produce summer or early fall rebloom
without losing the gains in form.


Betty Wilkerson
Zone 6 KY
autmirislvr@aol.com




-----Original Message-----
From: Francelle Edwards <fjmjedwards@q.com>
To: iris <iris@hort.net>
Sent: Wed, Jul 3, 2013 4:07 pm
Subject: RE: [iris] HYB: REB: good form plus vigor plus rebloom discussion
from  Facebook


I have a seedling that I have bloomed for six years.  Both parents, Coral
Dancer X Pink Champagne, carry rebloom genes but don't rebloom here.  This
one is my most consistent rebloomer, and its seedlings give a good
percentage of rebloomers.  It is vigorous, healthy and multiplies rapidly.
This season it started blooming in the middle of April and was still
blooming in the middle of June when the temperature was above 110 F.  I
don't know if it is still blooming or not; it's too hot out there for me.
Form is acceptable but not great, but because of its intense coral-pink
color and its other good qualities I have decided to register it this year
and have it introduced in 2014.
The point of this is that exempifies my disagreement with Betty's theory
that rebloomers tend to be less vigorous than once blooming irises.  My
experience is that they are actually more vigorous.
Francelle Edwards

-----Original Message-----
From: owner-iris@hort.net [o*@hort.net] On Behalf Of Linda
Mann
Sent: Tuesday, July 02, 2013 9:35 AM
To: iris@hort.net
Subject: [iris] HYB: REB: good form plus vigor plus rebloom discussion from
Facebook

Betty W asked on Facebook
<about iris plants--I've noticed that the strongest plants seem to have the
ugliest blooms. (less modern of form) Is this true? Is there limited plant
ability? If it gives good plants habits, it doesn't have the ability to give
good blooms? Linda Mann, is this what you are thinking about rebloomers?>

No, I think it's possible, just very very low probabilities for me at this
point in my breeding program.  The more inbred all the traits are, the
higher the probability to get them all combined.  This is what Chuck was
talking about when he was asking me all the questions about getting plant
health/vigor in seedlings involving parents from "incompatible"
climates.

So what I'm thinking is that if I had a population of seedlings that when
interbred would always (say, more than 80% of seedlings) produce rebloomers
that had the rebloom traits I wanted, plus a population that when interbred
<always> gave the form, colors and vigor I wanted, then crossing and back
crossing would give quite a few rebloomers with the form and vigor (leave
recessive colors & patterns out for now).

I have or am very close to having the population of seedlings that will
usually give good form when interbred, but have no population of rebloomers
that when crossed with each other will reliably give rebloom.
  & other people's rebloomers don't reliably rebloom for me either, so....
:-(  & since hot weather rebloom seems to be recessive, it may take awhile
to get seedlings that have that trait and are able to express it under my
growing conditions.  For all I know, I have a crateload of seedlings that
can rebloom in hot weather, but just can't do it here.  Not likely, but
unknown.

Linda Mann east TN USA zone 7b

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