The indexes of stability of fruiting and quality of harvest of varieties of grapes in not cover culture on alluvial-meadow soils

Products of viticulture one of most imported and highly sought at the different social layers of Russian population. Renewal and further development of industry of viticulture are inevitably related to mastering of new territories with earth suitable for a vine, mainly in a not cover culture. By important indexes for the estimation of earth mastered under vineyards from one side, used for the bookmark of planting and sorts - with other, there are stability of fruiting and stability of parameters of quality of harvest. As a result of stationary supervisions, sorts are certain with the subzero variableness of the productivity (coefficient of variation