Re: Re:Growing Iris South Florida
iris@hort.net
  • Subject: Re: Re:Growing Iris South Florida
  • From: C* C* <d*@rewrite.hort.net>
  • Date: Thu, 6 Nov 2014 12:31:42 -0500
When you remove an essential gene , or modify one like this, then you have to re-engineer whole plant so it has a replacement for lost function, which is one cog of a complicated genetic machine. And if you managed to do so, it would then be like the Dietes, and grow only warn climates, die elsewhere. Best bet would be to put iris flower form genes into Dietes. That would require less work or plant engineering. Or just grow the Dietes species and enjoy them. As well as the various other warm climate iridecea. Grow what does well in your climate is best way to go.
To get floral conrtol genes of Dietes into iris would involve getting many different gene transferred into iris. So far technology of plant engineering can't do this. It would involve simultaneously putting in several genes as doing one at time would not produce a viable plant. 

Chuck Chapman


From: Linda Mann <101l@rewrite.hort.net>
To: iris <iris@hort.net>
Sent: Thu, Nov 6, 2014 9:05 am
Subject: Re: [iris] Re:Growing Iris South Florida

It seems to me that it ought not be over the brink, just very
challenging and a major multiyear breeding program.  It would take a
determined, stubborn person, young enough to put more than 10 yrs into
the process.  I wish somebody would try.

The biggest problem they would encounter in trying to get good breeding
material (assuming they could collect even a small group of historic
survivors to start with) would be finding irises with desirable modern
traits as pollen donors. I say desirable, because tastes vary so much - 
therefore desirable to the breeder.  Most modern breeders either go to
great lengths to control diseases, or make selections in such a
different climate, there's not a lot of selection amongst 'the best' for 
disease resistance that would be critical for hot & soggy zone 10.

It does look like Dallas is very close to the calculated chill isoline
for zero chilling hours.

Bob Pries, want to organize an AIS bearded iris plant collecting
expedition to Dallas during TB bloom season?

On 11/5/2014 7:21 PM, Phloid wrote:

Is the step to hot/humid Z10 the one over the
brink for blooming TBs?


Post it to iris-photos as an attachment.  Folks have done that in the
past.

>Being a data nut I derived a
>summary Excel spreadsheet of the results list. If someone can tell me
>how to make this available w/o security risks I'd be happy to do so.

Linda Mann

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