Setting of fruit in new apricot (Prunus armeniaca L.) genotypes pollinated with their own Pollen and that of other cultivars

The main objective of the research was to evaluate the ability to set fruit in new apricot clones developed at the Research Institute of Pomology and Floricultur e in Skierniewice, Poland, pollinated with different apricot cultivars. The experiments were conducted in the field of the Experimental Orchard in D ą browice (2008 and 2010) and in a high plastic tunnel in the Pomological Orchard in Skierniewice (2010). A high degree of self - incompatibility was found among the five clones investigated; however, all of them were compatible with the apricot cultivars us ed as pollinators. A good pollinating cultivar for the tested clones was ‘Early Orange