Formation of resistance to hypothermia varieties Fragaria x ananassa Duch, different ecological-geographical origin in autumn period

Relevance. One of the most important factors which can influence on the growth and development of strawberries is the negative temperature in winter and especially in its snowless period. We were interested to study special aspects of the oxidative stress, accumulation of protector’s conjunctions, antioxidant and water status in autumn period of varieties strawberry garden different ecological-geographical origin in the conditions of the Orel region. Methods. The objects of the research were the leaves of Fragaria ananassa of different ecological and geographical origin in autumn period: Tsaritsa, Alba, Sara, Korona, Kokinskaya Rannya, Solovushka, Urozhainaya TsGL. Results. As the result was shown that in autumn period, when plants began preprocessing for winter, strawberry varieties Solovushka, Tsaritsa, Sara and Korona have been marked by increased antioxidant activity (for example, the enzymes SOD and catalase), little formation of reactive oxygen species and, in the end, low structural and functional damage to cell membranes...