Are you talking about cut flowers? I assume so, as I know of no South American plant exporters.

Yes Trospero, I mean the floral cut flowers. Most of them are pretty and long lasting in plant or vase life.
There is very limited information if they were grafted on Dr Huey (Virused?) or a healthy own root?
Thank you for your question!

See:

http://www.ncbi.nlm.nih.gov/pubmed/20607379

Here is a link that might be useful: roses in Chile

Thank you HK, The local florist told me that some varieties (Freedom) grown from Prima Rose, Ecuador, is much larger and better quality than that of other grower's.
I know there are many cut flower rose grower in Ecuador, some of them are European origin. Is possible some grower adapting better way to propagated their plants.
If time allowed, I am going to do the index testing on RMV of some SA imported cut rose flower this year. I have tiny VI Mme Butterfly, I am waiting it grow large enough to do the test.
Gardentiler