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Crossing with tetraploid pollen in hot weather

 

Hi Sean, Jim and others..

 

I canât remember we have been writing about this issue before.

 

Your temperatures seems must higher than the ones we have here in Denmark. If we have a hole week with your summer temperatures, we have a fantastic summer. We have only very few days with high temperatures and after that we get thunder and rain (therefore my covering).

 

I have also this year been crossing with Iris stolonifera and Iris hoogiana, both by the nature tetraploide ÂRegelia species, on other tet. RH and RC hybrids, but the final result is always only very few developed pods. It seems that I am getting the best result if the temperature is over + 20C. Can anyone confirm this?

 

PS, I am also seeing this when it comes to tetraploid lily crossing.

 

 

Med venlig hilsen / Kind regards

 

Lars HÃpfner

Langengen 38, Svogerslev

4000Â Roskilde

Denmark

 

Fra: iris-species@yahoogroups.com [mailto:iris-species@yahoogroups.com]
Sendt: 6. juni 2014 15:22
Til: iris-species@yahoogroups.com
Emne: Re: [iris-species] bloom 2014

 

 

Mine are growing in raised beds of pure 2NS sand, exposed out in the middle of the lawn. They are never covered. Summers are generally sunny with occasional thunderstorms and daily high temperatures around 25 to 30ÂC.

 

Sean Z

Zone 6a

SE Michigan

 

On Fri, Jun 6, 2014 at 2:49 AM, Lars HÃpfner H*@privat.dk [iris-species] <i*@yahoogroups.com> wrote:

 

Hi Jim

I am growing oncocyclus and regelia species in pure grit, planted along a south facing wall. They are covered against rain in the summer and winter.

 

Med venlig hilsen / Kind regards

 

Lars HÃpfner

Langengen 38, Svogerslev

4000  Roskilde

Denmark

 

Fra: i*@yahoogroups.com [mailto:i*@yahoogroups.com]
Sendt: 5. juni 2014 21:42
Til: i*@yahoogroups.com
Emne: Re: [iris-species] bloom 2014

 

 

Hello Lars,

Well I will have to look into getting a little more adventurous in my Iris selections I think.

Thanks to both you and Sean.

Jim in Saskatoon

On 2014-06-05, at 12:02 PM, Lars HÃpfner H*@privat.dk [iris-species] wrote:

 

 

 

Hi Jim,

Have you tried?

 

Paradoxa is growing well for me here in Denmark

 

Med venlig hilsen / Kind regards

 

Lars HÃpfner

Langengen 38, Svogerslev

4000  Roskilde

Denmark

 

Fra: i*@yahoogroups.com [mailto:i*@yahoogroups.com]
Sendt: 5. juni 2014 05:54
Til: i*@yahoogroups.com
Emne: Re: [iris-species] bloom 2014

 

 

Those are beautiful, Sean.  Wish I could grow something similar here.

Thanks for sharing.

Jim in Saskatchewan Zone 3

On 2014-06-04, at 4:27 PM, Sean Zera z*@umich.edu [iris-species] wrote:



 

 

And some Oncocyclus: iberica ssp. lycotis and paradoxa f. atrata. The latter is difficult to photograph - in shade or on cloudy days it looks as it does in the photo, but in full sun the standards appear as dark as the falls so the entire flower is satiny dark purple-black.

 

Sean Z

Zone 6a

SE Michigan

 

<iberica ssp lycotis.jpg><paradoxa f atrata.jpg>

 

 

 

 

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