A field collection of wild raspberry (Rubus idaeus L., Rosaceae) clonal accessions was established in 2001 with the purpose of studying the phenotypic diversity of the species and evaluating the accessions for their useful properties, including growth patterns, fruit yielding peculiarities, and resistance to fungal diseases. Several of the 60 accessions studied were distinguished by retarded vegetative spread, early ripening fruit, and intensive fruiting as well as the production of high fruit yields. The incidence and severity of 3 fungal diseases, spur blight (Didymella applanata (Niessl) Sacc.), anthracnose (Gloeosporium venetum Speg.) and leaf spot (Septoria rubi Westend.), common to cultivated raspberries, were observed and estimated in the collection. In general, the obtained results confirmed the high phenotypic diversity of the species in Lithuania.
Keywords: Rubus idaeus, accession, primocane, fruiting, field collection, fungal disease.