In vitro propagation: A comprehensive review
This kind of propagation may beyond the scope of our amateur interests, but I found a good review of what and how and up to date through last year.
Your interlibrary loan could get a copy through a university library.
The paper is
Pati, P. K., et al. 2006, In vitro propagation of rose-a review. Biotechnology Advances 24: 94-114.
That's an Elsevier Publication, available on line through www.sciencedirect.com