I have no idea if it would work.
But, I do know that either maxima or moschata will cross with Tetsukabuto.
I have a couple of crosses from several years ago that I hope to plant in 2018. One trial from a few years ago produced nothing but a runt. The plant never got over a foot long/tall, with leaves about 2" wide, and no flowers.
Joseph's landrace sounds like a really interesting cross that you have. So interesting, that if you have viable seed...
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