Growth and development of eight cultivars, two varieties, and 18 morphotypes of lingonberry (Vaccinium vitis-idaea L.) were studied in the field collection at the Institute of Botany in 1993–1997. The soil type made the most visible impact on growth and fruiting comparing with other factors conditioning growth. Plants cultivated on an acid peat soil exhibited better development than those cultivated on a sandy loam soil. Simultaneously some genetically caused growth difference were observed in different loganberry accession grown under identical condiction. All cultivars produced two harvests – summer and autumn, while among, the morphotypes only six produced a secondary (autumn) harvest.
Keywords: lingonberry, cultivar, morphotype, accession, field collection, cultivation, growth, fruiting.