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