> As these mature, I hope to do some breeding of roses for fruit. I would
be
> interested in hearing if anyone else has been doing similar work.
That's interesting: breeding roses for fruit. It reminds me of an article I
read, where they used pollen mixtures of apple and roses to pollinate
'Hanza' (rugosa) roses (I think that should be 'Hansa', but it was written
that way).
THE INDUCTION OF FORMATIVE PROCESSES AT 'HANZA' ROSA BY THE ALLOGENIC POLLEN
OF MALUS DOMESTICA BONK.
Markova I.V., Brel N.G., Getko N.V.
The Central Botanical Gardens of the National Academy of Sciences, Minsk,
Belarus
They didn't comment much on the possibility of intergeneric hybrids. There
is an e-mail address in the article, so if interested you can perhaps
contact the autor.