Fruit growing
and viticulture of South Russia
The results of determination of frozen strawberry quality grown under various soil management systems are presented. It was found out that soil mulching had a negative effect on the content of dry soluble substances, sugars and organic acids of berries. Juice-retention ability of the berries. correlates with the amount of dry soluble substances in them before freezing, and in turn with the soil management. Frozen Honey strawberries grown without mulching had a high juice-retention ability.
The influence of the fermentation method of grapes must on accumulation of highest alcohols in the cognac winemaking material is shown. The equations of reactions, reflected formation mechanism of a number of volatile compounds are submitted.
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The method of ecological and genetic evaluation of fruit cultures adaptability, that takes into consideration the genetic diversity and individual features of varieties reaction on the meteorological factors of environment in the various periods of development, is presented.
The new apples genotypes combining the high quality of fruits with stability to abiotic and biotic stress-factors of environment are allocated on the basis of selection on a phenotype in the combination with identification of target signs by method of molecular DNA marking and biochemical methods of research.