Evaluation of Collection Stock of Plants of the Genus Dahlia Cav. in the Kremenets Botanical Garden
DOI:
https://doi.org/10.29038/2617-4723-2019-387-59-64Keywords:
Dahlia Cav., Cultivar, garden group, Kremenets Botanical Garden, collectionAbstract
The article reports on the evaluation of the collection stock of the genus Dahlia Cav. Kremenets Botanical Garden. The purpose of our work was the analysis of the collection fund of the genus Dahlia Cav. Kremenets Botanical Gardens, estimation of decorative indices and processing of the main areas of enrichment, keeping the collection and further introduction into landscaping. The basis of the work is the materials of the introduction studies of 2018. Phaenological observations were conducted according to the generally accepted methodology in botanical gardens.
This methodology is known in Ukraine since the end of the eighteenth century, beginning with the 1950s. The study was started at the National Botanical Garden named after. M. M. Grishko National Academy of Sciences of Ukraine. Currently, the study of varieties of the genus Dahlia are G. Muzychuk, A. Doroshenko, the collection has 231 cultivars.
Collection of daisies in the botanical garden of Ivan Franko Lviv National University was founded in the 70's of last century. The main source of cultivar material was the botanical gardens of Belarus, the Baltic states, Kyiv and Moscow, Poland. Today, the collection of daisies has 107 cultivars, the research is carried out by J. A. Fedorovsky, A. I. Prokopov.
Since the research data in Ukraine are fragmented, the study and evaluation of the decorative features of the Dahlia species in the Kremenets Botanical Garden is relevant. The introduction of this genus began in 2017.
An analytical-comparative method was used to estimate the cultivar diversity of the collection stock of daisies. In the analysis of the collection fund, the garden classification of dahlias, developed by M. P. Yaschenko was used.
The results of the distribution of plants in groups are presented. The cultivars of the collection are depicted in the main colors: red (R) is available in 3 cultivars of various garden groups, orange (8), dark red (DkR) in 1 varieties, lavender, purple (L) 2, pink ( Pk) in 2, two colors (Bi) have 8 grades, white (W) 1, yellow (Y) 2, dark blend (LB and DB) have 2 varieties. The investigated cultivars of daisies are promising for cultivation in culture. Replenishment of the collection of the Dahlia genus remains the main task of scientific and collegial work as a way of conservation and enrichment of plant diversity. The use of daisies during the landscaping of the territory of the country estate plays a significant role in achieving the planned decorative and aesthetic effects.
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