i think there are 3 sources of these Shiranui budwood that is being sold from the UCR CCPP budwood. I have 2-3 of their budwood types and they seem to have the same type of fruits (either no seeds, or some seeds) on the fruits. So, I have a few grafted branches that has fruits with seeds in every fruit, my other grafted branches have fruits with no seeds in any fruits. I read in an old post that somone grew seeds and when the tree had fruits, most fruits had seeds while other seedling trees were seedless. I did plant 5 seeds from sumo a few years ago and now the plants have grown to about 3-4ft tall, hope it eventually gets some fruit to compare the fruits with the true budwood grafts.