The duration of a blooming period of lilac cultivars of the Nikitsky Botanical Gardens collection

Abstract

The duration of the flowering period of lilac cultivars from the Nikitsky Botanical Gardens collection is analyzed. It is established that the duration of flowering depends both on the cultivar peculiarities and climatic conditions of the year. The inverse dependence of a cultivar's flowering period duration on the flowering beginning date and on the average air temperature over the flowering period was revealed. 35 studied cultivars were divided into 2 groups: 13 quickly fading cultivars and 22 cultivars with long-term blooming. It has been established that under the conditions of the Southern coast of the Crimea all long-term blooming cultivars are early-blossoming, and rapidly fading cultivars mainly have the middle and late blooming periods.