Summary: Between 2005 and 2007, the self- and free fertilization of 11 foreign apricot cultivars were studied. Among the studied cultivars, two were self-fertile: Z81 and Latecot. These two self-fertile cultivars showed a very high fruit set ratio (above 60%) via free pollination. The lowest fertilization levels (8–15%) were observed at cultivars with a genetically high fruit weight (Jumbocot, Toyesi). In cultivar associations,
Toyesi and Robada proved to be a suitable pollinator for most cultivars, while Latecot, Jennycot and Z81 were good pollinators in certain
combinations only.