A few days ago I recorded a podcast with Margaret Roach were we talked about all our favorite seed sources. One of the many things we mentioned were the great species petunias available from Select Seeds. Which caused me to flash back to my time in graduate school doing research on petunias, and dig up these old images.
At the top are Petunia integrifolia (purple) and Petunia axillaris (white) and below are an assortment of flowers from a population of F2 hybrids between the two. This cross is interesting because it is a recreation of the original hybrid that created modern hybrid petunia.
But more fun is a similar cross with the one hummingbird pollinated petunia, P. exserta! It is fun to see the ways the colors and flower forms recombine in new ways in the seedlings.
I don’t have anything profound to say about these pictures… just, hey, isn’t genetics cool?