RE: Re: HYB: rebloom breeding
iris@hort.net
  • Subject: RE: Re: HYB: rebloom breeding
  • From: C* C* <d*@rewrite.hort.net>
  • Date: Tue, 2 Dec 2014 15:13:32 -0500

If it was a PV (preferential vernalization ) type it would rebloom and perhaps continue for next year according to how well it was growing. Then stop. If a fall cyclic that didn't have time, then once and stop.

Chuck Chapman


-----Original Message-----
From: Barb Johnson <73d454751@rewrite.hort.net>
To: iris-talk <iris@hort.net>
Sent: Tue, Dec 2, 2014 2:02 pm
Subject: RE: [iris] Re:  HYB: rebloom breeding

I am curious -- if I were to pot up a rebloomer and take it indoors for the winter, would it rebloom because it stays warm year round?

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Barb JohnsonÂÂÂÂÂÂÂÂ b*@hotmail.com
Near Springfield, SW Missouri USAÂ Â
AIS, HIPS, MIS, TBIS, ISO
USDA Zone 5bÂÂÂÂÂÂÂÂ AIS Region 18 (KS & MO)
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&gt; To: iris@hort.net
&gt; Subject: Re: [iris] Re:  HYB: rebloom breeding
&gt; Date: Tue, 2 Dec 2014 12:16:53 -0500
&gt; From: db4f61431@rewrite.hort.net
&gt;
&gt; Growth of increases indicate that bud set has occurred, so fans would
&gt; be mature.
&gt;
&gt; Linda,  I very, very, much doubt that you will get any bloom from
&gt; Preferential vernalization rebloomers in your climate, unless it is on &gt; first year plants primed in zone 9 garden. The range of growth time &gt; after rebloom will be in a very narrow range, selected by millions of &gt; years of evolution. Breeding can make changes on length of growth &gt; time, but it would need a very systematic approach and you would need &gt; a zone 9 garden to work on it. Might be able to change it by a week, &gt; perhaps two, but not much more then that. Evolution has very carefully &gt; selected a limited range. The early ones will have been eliminated from
&gt; gene pool by death. So will the later ones. Genes will have been
&gt; eliminated. So only way to get a change that would be useful to you
&gt; would be  by a mutation. Then you would need a means to be able to
&gt; identify  that this has happened.   And it would likely need  two
&gt; mutations to line up. the one producing signal and the other one
&gt; responding to it. And if they are recessive, how will you find them?
&gt;
&gt; Also consider that the plants with PV evolved in an environment with &gt; winters seldom going below freezing. So will be strongly associated
&gt; with   tender genes as far as cold weather is concerned.
&gt;
&gt; I did try Belvi Queen several times.  Didn't thrive here.
&gt;
&gt; Chuck Chapman
&gt;
&gt;
&gt; -----Original Message-----
&gt; From: Linda Mann &lt;101l@rewrite.hort.net&gt;
&gt; To: iris &lt;iris@hort.net&gt;
&gt; Sent: Tue, Dec 2, 2014 10:37 am
&gt; Subject: Re: [iris] Re:  HYB: rebloom breeding
&gt;
&gt; Thanks again, Chuck.
&gt;
&gt; Could you elaborate on this a bit more (again)? Is the presence of
&gt; baby
&gt; fans starting a good indicator of mother fan maturity? I might have &gt; enough energy to note that ;-) Are there other ways to tell whether or
&gt; not a fan is mature?
&gt;
&gt; On 12/1/2014 7:52 PM, Chuck Chapman wrote:
&gt; &gt; observe maturity of  fans .
&gt;
&gt; Thanks for joining in, Francelle. Good to be reminded that rebloom
&gt; requirements (genetic and environment) vary a lot for different
&gt; breeders. The three of us (you, me, and Chuck) pretty much cover the
&gt; range of challenging climates - hot dry, erratic hot wet, and cold
&gt; short
&gt; growing season.
&gt;
&gt; Like you, I have some different options for getting rebloom because
&gt; unlike Chuck, I do have a long growing season.  So some of the
&gt; preferential/CA rebloomer genes can give me additional (re)bloom, &lt;if&gt;
&gt; I
&gt; can combine those genes with the fastest maturing genes and ones that
&gt; can continue rapid maturity in humidity and heat.
&gt;
&gt; I haven't tried hard to work with your Belvi Queen seed babies yet, but &gt; hope to have something suitable to mix with them this coming year.
&gt; Down
&gt; to 2 of the strongest growing survivors. I've put pollen on them, but &gt; it's been a low priority up till now, so haven't really worked at it,
&gt; and no luck so far.  Let me know if you'd like starts.
&gt;
&gt; Chuck, have you grown Belvi Queen?  It's been the most
&gt; reliable/persistent summer bloomer here, not fertile for me either way &gt; so far. Not as weak a grower as Tea Leaves, and comes from GP Brown & &gt; Gibson breeding, so should have at least a chance at rebloom for you.
&gt;
&gt; Linda Mann zone 7, back to balmy spring weather again, lows in the mid &gt; to upper 40s, highs upper 50s to low 60s. Grow newly planted irises,
&gt; grow. ;-)
&gt;
&gt;
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