There's some very useful information in this basic guide to the mechanics of rose breeding.

More articles found here also.

There is debate about the likelihood of infecting a clean rose with virus by placing pollen from a virused plant onto a clean one. Indications are that it is possible, yes, but it probably happens very infrequently. Is it possible to create virused seedlings from a virused plant? Probably, but its got to be a rare thing. The sentiment among many hybridizers is: if you have a plant you KNOW is virused, use it as a seed parent, NOT as a pollen parent, just to eliminate the possibility of infecting a clean seed parent.

From this URL, comes this quote:

"In seedling transmission tests, 651 seedlings produced from seed collected from virus-infected plants were ELISA tested for viruses; no virus was detected. Pollen from infected plants was applied for 3 years to 173 uninfected plants; for 2 subsequent years all ELISA tests were negative for viruses."

You've seen many of my hybrids before, I'm sure, so no need to post things you've already seen. However, in 2021 I found this rose growing in a pot of weeds and resurrected it. I had assumed it was destroyed in the Big Freeze of 2015, but there must have been some life in the roots.

Its a cross of 'Golden Angel' X 'Out of Yesteryear'. Its a thorny bugger, a trait that persists for generations in R. bracteata hybrids.

Awesome!!! I’m already excited!!!

@User

I feel like I remember some other members talking about hybridizing new roses. I think it might have been @jerijen on a really old thread. I haven't seen her post in forever, does anyone know if she is ok? I could also have been seil but I don't know.

The best place to find discussions specifically about breeding roses is at the Rose Hybridizers Forum.

It is my understanding that Jeri doesn't post here much anymore, mainly due to her displeasure with how Houzz has degraded the GW experience.

Oh, seasiderooftop is on those forums too! Are most people from here also on those forums?

I totally understand her point, people are being super aggressive here nowadays. Well, if you see her or hear from her, you can tell her she still has fans here! I know a lot of us really admire her work. Her advice on those old forums is great! She is missed :(

Jeri has posted to this forum within the past week. She participates sparingly, but she is here

@GardeningTeenager "Oh, seasiderooftop is on those forums too! Are most people from here also on those forums?"

I don't think there's much overlap between GardenWeb and the RHA forum, no. GardenWeb is a growers forum, and the RHA is very specifically "amateur" breeders. There may be a handful of aspiring hybridizers here at GW, but only a few.

If you want to get into some serious, technical discussion about the specifics of Rose breeding, then the RHA forum is definitely the best place to do this. Get involved!