COMMERCIAL QUALITY OF THE PLUM DURING ITS COLLECTION AND AFTER SIX WEEKS OF ITS COLD STORAGE

The article presents the results of cold storage for 6 weeks at a temperature of 0 ...+ 2 ° C and a relative humidity of 90-95% of plums of such new cultivars for the Guba-Khachmaz region as “Black Amber” and “Black Daymond”, grown here on a medium-sized rootstock Myrobolan 29C (bred imn California from the progeny of Prunus cerasifera). In addition to the above two cultivars, for comparison, cherry fruits of the “Prunus domestica italica” cultivar grafted on wild were also included in the experiments. During the entire storage period, the natural decline of the “Prunus doestica italica” cultivar, traditional for the region, was 3.0%, and in the two aforementioned cultivars of the latest introduction - 0.1 and 0.3%, respectively. The yield of standard fruits at the end of the established period for their storage was: “Black Amber” 93.5%, “Black Daymond” 90.6%, which is 8.5 and 5.9% more, respectively, than that of the “Prunus domestica italica” cultivar.