PhotoComments & Questions 
Rosa bracteata x chinensis  rose photo courtesy of member marcir
Discussion id : 113-594
most recent 18 OCT 18 HIDE POSTS
 
Initial post 17 OCT 18 by Robert Neil Rippetoe
Sad, but looks about right.

Trying to get some width on those petals is going to dilute the species component considerably.
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Reply #1 of 4 posted 17 OCT 18 by Plazbo
Wouldn't that be a case where self/sibling cross could probably be of use? Granted may be difficult if its a difficult breeder like bracteat. Just seems like a path thats often over looked and we see species crosses with flaws not in either parent used in further wide crossing before fixing flaws at the first species cross.
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Reply #2 of 4 posted 18 OCT 18 by Robert Neil Rippetoe
That's likely the most productive way forward. I've produced many bracteata derivatives. Most don't carry forward resistances. There are no guarantees when breeding roses. It takes luck and work and a lot of time to make progress.
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Reply #3 of 4 posted 18 OCT 18 by jedmar
I believe the petals are narrow on these photos as Burgundy has been experiencing severe drought since April. Rosa bracteata x chinensis has wider petals (see my pics).
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Reply #4 of 4 posted 18 OCT 18 by Robert Neil Rippetoe
Those narrow petals do vary somewhat with weather conditions.

Here's a case in point wherein the narrow petals carried into the second generation whilst staying diploid.

http://www.helpmefind.com/rose/l.php?l=21.141963


When integrating into triploid and tetra genomes no doubt the effect would be less pronounced.
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