Bologna University's new 'SU1 UNIBO' Sino-Japanese plum

‘SU1 UNIBO’ is a new Japanese plum cultivar developed by the Department of Agricultural Sciences of Bologna University. The original ‘Black Amber’ × ‘Howard Sun’ cross dates to 1994 and was bred by S. Lugli, S. Sansavini, R. Correale, and M. Grandi at the Cadriano Experiment Station under a joint venture with New Plant (formed by Apo Conerpo, Apofruit, and Orogel Fresco) and Bologna University. ‘Black Glamour’ exhibits notably positive growth and fruit traits. It is early bearing, of high and consistent cropping, and picks 20-25 days after ‘Shiro’ in the Bologna area. Its fruit is a high-quality, black skin, yellow-flesh Japanese plum characterized by large fruit size, pronounced firmness and juiciness, good flavour, maintains ripeness on tree for nearly a month for flexible picking, and has good postharvest storability. Bologna University’s knowledge transfer office lodged an EU plant patent application for ‘SU1 UNIBO’ in 2015 and subsequently licenced the commercial rights to New Plant for distribution in Europe