The Economic Efficiency of the Production of Grafted Planting Material of Grapes, Depending on the Level of Compatibility of Varietal Combinations

The article evaluates the economic efficiency of the production of grape planting material depending on the compatibility of Variety-Rootstock combinations. It is established that in the existing price field with the generally accepted technology, it is economically feasible to choose such Variety-Rootstock combinations that provide an output of standard seedlings from the number of planted grafted cuttings equal to 59.7%. Thus, the calculation of the economic efficiency of the production of planting material can act as an element of determining the level of compatibility of Variety-Rootstock combinations. The change in the production of standard planting material leads to a change in the cost structure – with a decrease in the production of standard seedlings, the proportion of grafted stratified cuttings increases. A decrease in the production of standard seedlings not only leads to a change in the cost structure, but also to a significant increase in the need for areas for a grape nursery and production costs in an exponential progression - from a larger production of standard seedlings to a smaller one.