"Morris Burton is involved in all of the 4 varieties that were observed to produce what Martha Davis and I call non-astringent fruit. That is some of the fruits could be picked off the tree while still firm with no astringency. Those 4 varieties were L-92, L-93, L-104 and L-104A. Morris Burton is involved in all 4 of these. L-92 and L-93 are Szukis X F-100. L-104 and L-104A are F-7 X Killen (using female pollen). Female pollen is my way of identifying pollen from pistillate trees. Early Golden,
Garretson, Killen and Szukis will all occasionally put on male flowers "
It sounds like Morris Burton is a special DV indeed…
Not to derail the progress of this thread, but I have to ask, and please ELI5- is there a genetic difference between fuyu and hachiya and saijo and chinese bred fruits to the point that they are actually a different species? I always see the distinction between American and Asian persimmons, and I understand that. But this discussion of “species within species” more or less is confusing but I’m trying to follow. That is, relating to astringent vs not. I understand the gene expression and recessive vs dominant aspect, but is there something else going on? I also find sometimes that asking simple and sometimes obvious seeming questions leads to a more fruitful outcome.
What I am getting at, if I understand things correctly, is that maybe if the right unicorn DV (maybe one of those discussed by Mr Lehman in the linked thread) is used for non astringent breeding, maybe just the right genes will be expressed and maybe a fusion of the recessive Asian and DV (whether recessive or dominant) will be enough to accomplish the hardiness and non-astringent goals desired. Maybe as there are multiple mechanisms present, not all of them need to be expressed to achieve the desired outcome.
I’m no geneticist and this is just hypothesizing on my part with no evidence to back up my thoughts. You guys are way ahead of me.