Tulipa tschimganica Botschantz. in the collection of the Central Siberian Botanical Garden of Siberian Branch of Russian Academy of Sciences

The paper analyzes the features of seasonal development of Tulipa tschimganica Botschantz. in the conditions of the recipient region. Comparative morphometric characteristics of ex situ and in situ are given. Representatives of the species T. tschimganica growing in high mountains are successfully acclimatized in the Novosibirsk Region. Late flowering and resistance to viral disease variegation adds value to this species in floriculture and gardening in the spring. The temperature characteristics of the initial stages of phenophases are established. The beginning of flowering in six of ten years of observations occurred in the second decade of May. By duration, flowering can be characterized as short – 7–8 days, with an average duration of 10–12 days and a long one – 13–15 days, respectively. It was found that, despite the high rates of maximum and average daily temperatures, lower temperatures increase the flowering period of T. tschimganica. The flowering period in the recipient region, compared with the city of Tashkent, shifts by two months and starts from the second decade of May. The range of experimental plants morphometric parameters, such as plant height, leaf width, length and width of the ovary, and fruit width, increases. The rest of the studied parameters remained in situ. The study of the ontogeny of individuals grown from seeds collected from introduced plants is being carried out. To date, the plants are going through a long pregenerative period of ontogenesis. Successful completion of the full cycle of annual shoots development and the formation of high-grade mature seeds characterize this species as successful for introduction and use in gardening in Novosibirsk.