Methods for comparing and improving the quality of local storage of grapes in Uzbekistan

In this article, several methods of storing the harvest of the grape varieties in a natural way, including storage, vine method, storage in water-filled containers (by the method of legumes) were studied. During the experiments, discrepancy between their quality indicators, advantages and disadvantages of these methods, storage periods and conditions, as well as the amount of dry matter, the amount of nitrate, the pH environment were researched and analyzed. The pertinent results showed that the sugar content of grapes was the lowest according to the characteristics of varieties in the vine method, accounted for 16.3% and the highest in the storage method, which was 21.17 %, the amount of nitrate was not more than 60 mg/kg in the norm, which was also allowed in all methods. Noteworthy, the most acceptable method among them was the bottle method, however, the method needed to be improved in the future.