Reedo, wow, nice photos and plants. You grafted tree really did well for one year growth.
Did you say it takes 2 yrs for the seeds to germinate to the size you show in the photo? It sure takes a long time to grow. I'm planning to try both cracked seed and untouched seed germination to see if cracking the seeds open will shorten the time for it to start growing out.
Ronnie Demler is the person on Facebook that wrote a nice 10 page PDF paper on how he germinates the yangmei seeds (written in Jan 2020). Here's the facbook link below with the document.
https://www.facebook.com/groups/402462807192797/posts/1405283506910717/?comment_id=1405564263549308&reply_comment_id=1406670503438684¬if_id=1675185274339327¬if_t=group_comment_mentionI agree with you on the grafting, no different than any other grafting like citrus, lychee. One interesting thing I noticed about how they graft all these bare root trees we got is that they are all veneer grafts. So, for those people who wanted to know the trick, just copy their technique. I haven't had good scion wood to do the grafting on myrica californica rootstock until now so this time I will do a lot of grafting. Problem is, there are not that many sources for the rootstock, all out of stock since many people are buying them up.