Introduction of the juniper genus (Juniperus L.) in the Stavropol botanical garden
https://doi.org/10.26897/1997-6011-2023-5-140-146
Abstract
In the botanical gardens of Russia, collections of living plants are formed for the purpose of scientific study. The purpose of the work is to study the ecological and biological characteristics of species and cultivars of the genus Juniperus to solve practical problems of optimizing landscapes and cultural communities in the region. The studied species belong to six floristic regions. The object of the study was woody plants of the juniper genus (Juniperus L.) from the dendrological collection of gymnosperms of the Stavropol Botanical Garden. The taxonomic composition of the botanical garden collection was clarified using literary sources; phenological phases were noted according to the methodology adopted for botanical gardens of the USSR. Plant height was measured with a SUUNTOPM‑5 altimeter. To characterize the life state of plants, the method of V.A. was used. Alekseev, decorativeness was determined visually (high – 2, low – 1) on individual scales: quality of the crown, trunk, needles. Analysis of the floristic origin of species was carried out using the system of A.L. Takhtadzhyan. ost of the plants were planted between 1968‑1973. These are trees from 7.5 to 13.5 m tall, multi-stemmed trees 0.7 m to 8.5 m, creeping shrubs. The beginning of shoot growth was noted in the 2nd‑3rd decade of April. The formation of cones was observed in 11 species and cultivars. Self-seeding was observed in Juniperus chinensis L. A healthy vital state was observed in 12 species and cultivars (100‑80%), 8 species and cultivars were weakened and needed additional agrotechnical measures (79‑50%), 3 species were severely weakened and needed replacement (49‑20%). Minor damage to needles by diseases was noted in the following species: juniper schutte – Juniperus chinensis, J. chinensis cv. Stricta and juniper rust – J. sabina cv. Tamariscifolia. Sustainable ornamental garden forms are recommended for propagation in industrial nurseries and for use in regional landscaping.
About the Author
T. V. Nezhentseva
Federal State Budgetary Scientific Institution “North Caucasus Federal Scientific Agrarian Center”
Russian Federation
Russian Federation
Nezhentseva Tatyana Victorovna, candidate of biological sciences, senior researcher, laboratory of dendrology
356241, Stavropol Territory, Shpakovsky district, Mikhailovsk, st. Nikonova, 49
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For citations:
Nezhentseva T.V. Introduction of the juniper genus (Juniperus L.) in the Stavropol botanical garden. Prirodoobustrojstvo. 2023;(5):140-146. (In Russ.) https://doi.org/10.26897/1997-6011-2023-5-140-146
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