Ecological plasticity and stability of grape varieties as an indicator of economic efficiency of their cultivation

The research was conducted at the experimental sites of the National Scientific Center “Institute of Viticulture and Winemaking named after V. Ye. Tairov” from 2011 to 2020. A study of the ecological plasticity and stability of promising table and wine grape varieties was carried out according to the level of manifestation of productivity as one of the most dependent characteristics on growing conditions. Varieties and hybrid forms with the high level of stability and plasticity were ascertained. The suitability of experimental genotypes for intensive and extensive cultivation was determined. Estimation of the economic efficiency of growing new varieties was demonstrated using the promising ‘Persei’ variety as an example. Cost reduction due to a decrease in chemical load and increase in profit due to consistently high productivity, quality, and non-necessity of extra special care was proven.