Fruit growing
and viticulture of South Russia

Annotation

The objects of our research were 23 new best varieties of strawberry of domestic and foreign selection. The strawberry is the least winter-hardy from all cultivated crops. Short-term fall of the temperature in the rooting zone (up to -80C) leads to severe damage of the plants. The work purpose is to conduct a comprehensive assessment of strawberry for winter hardiness and to select highly productive and adaptive varieties to form the optimal assortment for middle zone of the Russian Federation. All accounting were conducted according to the "Program and method of variety's study of fruit, berry and nut crops", on the basis of the collection fund of the State Scientific �rganization All-Russian Research Institute of Horticulture named I.V. Michurin. Field accounting of freezing of strawberry plants was carried out before flowering. The degree of plants freezing varied from 1 to 4 points depending on the genotype. The available damage has negatively impacted on the laying of morphostructural components of productivity. As a result of conducted research the high winter stability and winter stability strawberry varieties were selected from number of studied varieties. The significant freezing (4 points) was observed at Corrado and Lord strawberry varieties. The carried out assessment of the general condition of the strawberry plants in the spring and autumn showed that adverse weather conditions affected the laying of the generative buds. The excellent condition of plants is noted at Bereginya, Maryshka, Solovushka strawberry varieties, 10 varieties showed a good condition, the wear condition is noted at Zenga Zengana (control), Roxana, Corrado, Lord. As a result of integrated assessment of winter-hardy strawberry varieties the high-yielding varieties with high adaptive abilities were selected: Bereginya, Maryshka, Solovushka are for amateur gardening; Polka and Honey are for technological variety's study.