TULIPA KOLPAKOWSKIANA (LILIACEAE) IN THE COLLECTION OF THE CENTRAL SIBERIAN BOTANICAL GARDEN SB RAS
Lyudmila V. Gerasimovich
Central Siberian Botanical Garden of the SB RAS, Novosibirsk, Russia
Abstract
The article presents the results of the study of Tulipa kolpakowskiana Regel (Liliaceae) under the conditions of introduction of the Central Siberian Botanical Garden SB RAS. T. kolpakowskiana plants emerge in the late first and early second ten-day period of April, immediately after the snow melts. The decorative flowering period most often occurs in the first two ten-day periods of May. A clear distinction between the above-zero temperature sums confirms the dependence of the onset of phenophases on this parameter. Precipitation influences the duration of flowering. Morphometric features of T. kolpakowskiana plants are characterized by variability, which is confirmed by the indicators of normal variation. Adaptive changes are weak, which is confirmed in comparison with plants in situ. Unlike other studied species, T. kolpakowskiana plants do not have a significant correlation dependence of morphometric features on environmental factors. The percentage of seminification, seed germination in open ground have low values, reproduction by daughter bulbs is absent. Low variation rates indicate the homogeneity of seeds, and the correlation coefficient additionally indicates the independence of embryo size from the amount of endosperm during seed maturation. The success rate of introduction at this stage does not allow recommending this species for landscaping. It is necessary, in order to preserve biodiversity, to introduce the species in botanical gardens.
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