10 UMCA PQK chestnut seedlings—our number one seller for serious chestnut plantings. These UMCA® PQK seedlings come from a pollen‑isolated orchard of three grafted cultivars—Peach, Qing, and Kohr—developed and evaluated by the University of Missouri Center for Agroforestry for high production, nut quality, frost avoidance, and disease resistance.