Not trying to be the burst-er of bubbles but most fruit grown from seed that was originally grown from grafted root stock will not fruit or if it does will not be worth eating. The fruit will be small and woody. Not just blowing smoke here (no pun intended) my family was in the citrus business. If you want to make a tropical tree graft like flavored fruits. Oranges, tangelos, tangerines, kumquats. Do not plant lemons or limes near sweet fruit. It will cross pollinate and will have a whole tree full of sour oranges.