Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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PECULARITIES OF HEAT RESISTANCE OF THE GENERA ARONIA PERS., CHAENOMELES LINDL., CRATAEGUS L., SORBUS L. DURING THE INTRODUCTION AT THE STEPPE ZONE ON THE EXAMPLE OF ORENBURG

Orlova D.G. 1
1 Orenburg State Pedagogical University
The effect of high temperatures on tree and shrub plants of four generic systems (Aronia Pers., Chaenomeles Lindl., Crataegus L., Sorbus L.) of subfamily Maloideae Web. during the introduction in conditions of sharply continental climate of the Orenburg Urals was investigated. The arid conditions in the steppe zone of the Orenburg region are assessed from Selyaninov’s hydrothermal coefficient (HTC) calculated by 9-year-old data of Orenburg Regional Centre for Hydrometeorology and Environmental Monitoring. The studies were conducted by the standard technique of F.F. Matskov with the double repetition. At the base of the data 3 groups of introduced species with varying degrees of heat resistance were marked. Found that the analysis of the heat resistance of plants is an important measure in assessing the stability of the introduced species.