I'm quite confident that the "b" gene will modify the purple into a muted red color. In fact someone in England has already demonstrated this cross does work. I would need to do deep googling to find the blog post to show you.
Continuing this, I am am confident that the "b" gene in combination with a red podded line using the "gp" yellow podded gene underneath would come out similar to Rebsie Fairholm's original "peachy pod". I hope someday I or others can succeed in this. I think it would be wonderful.
The tendrils on my yellow and purple podded lines are both yellow and purple. Red lines have both. Can't remember if orange-pod does or not.
Still working on growing out attempted cross of orange-pod and yellow pod. If successful it could combine into a more golden yellow which could be very interesting with a red line. I think I may actually have some that have recombined with both and it seems slightly more yellowish, but not as spectacular as I was hoping. Will not give up on it yet, but not looking promising.
I have seeds for red-seeds (Biskopens hybrids), purple testa seeds (maybe the U gene?), and dark black seeds. Any or all of these crossed into a red podded line would look very cool. One of the Biskopens hybrids may have wrinkled seeds. A different Biskopens hybrid has purplish pods with umbellatum / crown pea traits.
Hoping my red podded line will turn out good this year. Only going to plant wrinkled seeds. F3? generation from my red (half-snap) line x Midnight Snow (my best tasting purple snow pea line).
