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Registration Number

0224U033382, (0120U000087) , R & D reports

Title

Woody plants' and their communities' resistance to the effects of abiotic and biotic factors in ecosystems of the city of Kiev.

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Стійкість деревних рослин та їх угруповань до дії абіотичних і біотичних чинників в екосистемах м. Києва

Head

Клименко Юрій Олександрович,

Registration Date

26-12-2024

Organization

M.M. Gryshka National Botanical Garden NAS of Ukraine

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The NBG arboretum has been replenished with plants of 101 taxa. Plans of the arboretum territory have been drawn up, a significant part of the collection plants have been recorded in the database. There are 213 taxa and 774 cultivars in the open field and 72 taxa and cultivars in greenhouses in 67 botanical institutions of Ukraine. Trends in the degradation of plantings in ancient parks have been identified. Ukrainian analogs of the description of the phases of various woody plants seasonal development on the BBCH scale and their coordination with the traditional scales of the last century are proposed. It has been established that deviations in the development of microstrobili of Juniperus pseudosabina cause the death of pollen grains at the time of reception and the loss of seed annually. Physiologically active compounds with allelopathic properties were found in the adjacent soil and in forest litter of Juniperus sabina, J. × pfitzeriana, J. pseudosabina, J. seravschanica. The winter hardiness of Hamamelis mollis, H. vernalis and H. virginiana in 2020 – 2024 was maximal. H. mollis plants are the most resistant to drought. It was found that in the seed progeny of Syringa × chinensis f. fructiferum the traits are retained 97.2%. The level of soil toxicity under monodominant plantations of Syringa vulgaris is the highest where there is a strong anthropogenic load. In the basal environment of S. faurieri, S. wolfii, S. velutina and S. x chinensis 'Duplex', its allelopathic effect is enhanced at the end of the growing season. Numerical values of the lighting regime of the visible and ultraviolet range in crown space of some species of trees and shrubs were obtained. Dimension and changing of the light flux in the crown space can be a criterion for light requirements. Morphological and anatomical features of shoots and leaves of model species has been determined under different lighting regimes. Increased induction of photosynthesis was found in shaded leaves.

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Honcharenko Borys V.
Horielov Oleksii O.
Horielov Oleksandr M.
Horb Vasyl K.
Dovhaliuk Nataliia I.
Klymenko Yurii O.
Kruhliak Yuliia M.
Parashchuk Oleksandr A.
Pokhylchenko Olha P.