PhotoComments & Questions 
Rosa multiflora var. watsoniana Matsumura  rose photo courtesy of member Arno
Discussion id : 25-920
most recent 2 MAY 08 HIDE POSTS
 
Initial post 1 MAY 08 by Cass
Arno, I've read that certain garden plants with unique coloration were purposely infected with a virus to obtain leaf variegation. I am not talking about RMV, but rather other woody ornamentals. I have to wonder if that is the case with R. multiflora watsoniana.

As an American, I am never pleased by variegated foliage on roses. My response is colored by my perception so much of the germplasm of American cultivars of the past 80 years are polluted by RMV.
REPLY
Reply #1 of 1 posted 2 MAY 08 by Arno
Hi Cass!


Interesting view ... I even did't know about that, so far and now I understand, that this would be a serious point, if one looks to breed a very good commercial variety for the USA, - and I also think that then, lots of people could see it in your kind of view, too. But I am not a commercial breeder, its just my hobby and I am an amateur.

But I don't think of a virus, as the pattern is too regularely and if the "symptom" is exceptionally stable and quite regularely in its way, also in totally different and extreme climate situations, a virus is not the best explanation for those variegata phenotypes, I think ... .

OK for me these variegatas (we discuss them here, in english) are also new, as I found a mutation of Eliza here in my garden:

http://www.rosehybridizers.org/forum/message.php?topid=16347&rc=29&ui=1808397568

By the way here is a picture with the leaf symptoms produced by a Rose Mosaic Virus:

http://www.apsnet.org/online/archive/mosaic.htm

Greetings!
Arno
REPLY
© 2025 HelpMeFind.com