Seed reproduction features of Vaccinium myrtillus L. and V. uliginosum L. in Perm region

The age spectra of populations, seed productivity and seed germination in Vaccinium myrtillus L. and V. uliginosum L. were studied in six populations in the Perm region. All populations are numerous, fruiting annual, age spectra are represented by different ontogenetic states, their ratio indicates normal development of populations. The data obtained show that the characteristics of seed productivity (number of flowers and fruits per 1 partial bush, number of ovules in the ovary and number of seeds in the fruit) and germination in these species are highly variable and to a small extent depend on the age spectrum of the population. In general, the seed reproduction of V. myrtillus and V. uliginosum in the studied populations is limited due to low seed production and low germination of seeds or the production of non-viable seeds.