THE SEEDLESNESS MANIFESTATION OF GRAPE VARIETIES UNDER THE AGRO-CLIMATIC CONDITIONS OF ANAPA AMPELOGRAPHIC COLLECTION
When analyzing the state of the viticulture industry in Russia, there is a lack of seedless grape varieties in the assortment that have valuable biological and economic characteristics and a short growing season, resistance to frost and phylloxera. Due to the advantage of seedless grapes both for fresh consumption and for the production of dried products, processing them into jams and other products, the demand for kishmish varieties is growing and seedless varieties are regularly selected. The degree of various varieties seedlessness can be different: from the almost full absence of rudiments in the berry to a sufficiently noted size of rudiments. At the same time, the degree of development of seed rudiments in the same variety may vary in dependence on the conditions of the growth place and the year conditions. We analyzed the harvest of 33 seedless grape varieties in the Ampelographic collection (Anapa) according to the evaluation of their seedless under the agro-ecological conditions of the Black Sea area of viticulture under the climatic conditions, 2019. The lack of recoverable rudiments of seeds was identified in the berries of cultivars the Kishmish Bely Ovalny, Detskiy, Kishmish Tarakli, Kishmish Rosovy, Kishmish Sogdiana, Kishmish Krugly, Remali Seedless. The maximum berry`s weight among this group was found in the variety of Kishmish Sogdiana. The largest rudiments were found in the berries of the Rusbal variety. Among all analyzed grape varieties, the rudiment of the berry`s mass of which has been measured, it is possible to select the Kishmish Luchisty: this variety has the highest average weight of berries (5.05 g) and the rudiments share of the berry`s mass is 1 %.