ESTIMATION FOR POTENTIAL FROST RESISTANCE LEVEL OF INVASIVE WOODY PLANTS SPECIES UNDER CONDITIONS OF RIGHT-BANK FOREST-STEPPE OF UKRAINE
Abstract
An efficiency effect of low temperatures on annual shoots of woody plants in temperate zone is often a limiting factor in their growth and development. Therefore, in order to analyze the adaptive capacity of alien plants is necessary to determine their potential frost resistance. The purpose of the article is to determine the potential frost degree of invasive woody plants species under condition of Right-Bank Forest-Steppe of Ukraine. The investigation was conducted in the laboratory of plantsphysiology and microbiology of Institute of Horticulture of NAAS of Ukraine. The tissues damage level by the low temperature with values –25 and –30°С of annual sprout of Ailanthusaltissima (Mill.) Swingle, Caraganaarborescens (Lam.), Acernegundo (L.), Phellodendronamurense (Rupr.), Gleditsiatraicanthos (L.), Mahoniaaquifolium (Nutt.) andRobiniapseudoacacia (L.) are set by the method of direct freezing. As a results of conducted analyze the high level of potential frost resistance is found in the majority of investigated plants and susceptibility to damage by low temperatures is revealed only in Mahoniaaquifolium. The gained results confirm the high resistance of invasive woody plants to low temperatures in the ecological conditions of Right-Bank Forest-Steppe of Ukraine.
Keywords: potential frost resistance, invasive woody plants species, annual sprout, Right-Bank Forest-Steppe of Ukraine.References
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