Persimmon ploidy impact on height

[SteadyStan]

@NateConn

I just called Cliff England and asked him a bit about this question. He said that he mostly takes this from his experience of the trees involved in the KSU study. He also said that he has a fairly accurate way to distinguish between the two races based on leaf shape and bud size, and based on this and his observations of the many persimmon trees on his farms, the height rule seems to hold pretty well.

Does anyone know how to distinguish between the southern 60 chromosome and northern 90 chromosome persimmon based on leaf shape and bud size? Are the buds bigger on a 90 chromosome persimmon?