Even if it doesn't work out, I'll work on getting Bell and then Magic Peppers unlocked. I might never manage to discover an unknown mutation, but I do at least volunteer to confirm White Peppers.
@Mommakat: SI is my favorite Harvest Moon game too. It's more challenging than a standard HM, but the game mechanics are not quite so obtuse, plus it has a guide so you don't end up with a field of dead, overwatered yams.
Also also, Mommakat, I know everyone else has said it, but you are the mutation MVP of this thread. You've made a lot of people's days, including mine, and I thank you for that.