I’m editing Wikipedia to add a section about the tetraploid / 60 chromosome and hexaploid / 90 chromosome races of American Persimmons, Diospyros virginiana. I remember hearing or reading something about how the hexaploid trees tend to be similar in stature to Asian persimmons, reaching a maximum height of 30’ or so but usually 15-20’, while the tetraploid trees tend to grow taller, 40’ or more. Is this true, and if so, is there any cite-able source for it? “Ploidy Level in American Persimmon” by Pomper et al. and “Popyploidy in Diospyros Virginiana” by Baldwin and Culp are great sources for other info about the two races and their distribution but don’t mention anything about height differences.
Edit: I just realized I read it in an article by Cliff England in the latest NAFEX POMONA magazine: “The southern 60 chromosome persimmons can grow to a massive size reaching from 80 to 100 feet in
height and are used as timber trees, while the northern 90 chromosome persimmons mature into much
smaller trees. These are an ideal orchard tree size, never growing much taller than 20 to 25 feet with a
spread of 15 to 20 feet.” I’ll reach out to him and see if he has a source on that.