Suitability of plum varieties and forms selected by the Federal Research Center n.a. I.V. Michurin for the production of prunes

Abstract

The study is aimed at assessing the suitability of plum varieties cultivated in Tambov region for the production of dried fruits (prunes). Large-fruited (average weight of more than 31 g) varieties were identified. Renklod by Kharitonovoy, Etude, Vengerka by Kursakov and Nochka are characterized by intense violet and dark purple integumentary colors. A combination of high skin strength, pulp hardness and good stone separation was found in Renklod by Kharitonov, Renklod Tambov, Etude, Vengerka by Kursakov and 23-135 Elite. A high accumulation of soluble solids, sugars, a low content of organic acids, as well as a high sugar-acid index were found in Renklod by Kharitonov, Renklod Tambov and Elite 23-135. Prunes produced from Renklod by Kharitonov, Renklod Tambov and 23-135 Elite were characterized by high commercial and consumer qualities, which makes it possible to recommend these varieties for the production of dried fruits.