Pistachio trees can be propagated by grafting, air layering, or growing from seed

Grafting 

Whip-and-tongue grafting: A common grafting method that involves making a 45-degree cut in the rootstock, selecting a healthy scion, and aligning the two

Cleft grafting: Another common grafting method that requires careful execution

Rootstock selection: Choose a compatible rootstock, such as Kerman or Peters, to promote growth and fruit production

Scion selection: Choose a healthy scion with vigorous growth to ensure a strong graft

Aftercare: Monitor the graft union for signs of growth and healing, and adjust watering and fertilization as needed