r/Lemon

My Pavlovsky lemon survived a flight to another country with fruit still on it, adapted to its new environment, and even found the strength to bloom again. I was sure it would drop its fruit because of the stress and the fact that the soil had been shaken out of it in a hurry. But it’s a hero!)
Citrus growers, please suggest some other delicious citrus varieties that grow well at home.

This is an Unshiu mandarin; I bought it from a private seller. The graft was made using the cleft grafting method.
While I was away, my mother-in-law nearly killed it—it was completely bare when I got back. Everything above the red line has dried up. I managed to regrow the entire crown, but I have a question. Is this branch from the scion or the rootstock? How can I tell?