Assesment of biological and economic features of the pinks (Dianthus L.) in the south of Western Siberia

The article summarizes the results of the introduction study of 11 pinks (Dianthus) in Novosibirsk. The relevance of the work is due to the insufficient use of genus representatives in the landscape design of the region. Two groups of species with different seasonal rhythms are distinguished. Early summer species are characterized by accelerated development: they bloom in June, flowering and fruiting periods last 4-5 weeks, vegetative shoots are autumn-green or wintering. In summer species, the phenological development is delayed: the flowering phase begins in July, the flowering period lasts 2-3 months, and the fruiting period lasts up to 7 weeks, the vegetation ends with the onset of autumn frosts. Morphometric indicators of the pinks significant for ornamental effect have been determined. The average height of the flowering shoot varies at the interspecific level from 19.5 cm to 46.0 cm, the average diameter of the flower is 1.6?4.1 cm.The character of germination, quality, and longevity of the pink’s seeds have been studied. The seeds are characterized by fast and friendly germination. High long-term laboratory germination averages 76.6-94.0 %. The economic longevity of seeds (germination rate of 50 % and above) is maintained for 7?12 years, and the biological longevity reaches 12?18 years. Perennial pinks are promising for landscape design in the forest-steppe of Western Siberia due to the totality of biological and economic characteristics.