Внутривидовые генотипы имеют широкую пластичность использования, но в то же время они не обеспечивают преодоления условий изменения климатических факторов. Анализ кривой световой насыщенности для фотосинтеза позволяет воспринимать экофизиологические характеристики вида, и, в свою очередь, эти показатели позволяют сравнивать разные генотипы растений в более или менее сходных условиях, определяя, таким образом, продуктивность и устойчивость к факторам окружающей среде. Таким образом, было установлено, что межвидовые генотипы винограда (Vitis vinifera L. x Muscadinia rotundifoliaMichx.) демонстрируют более высокие показатели продукционного процесса, чем внутривидовые генотипы винограда.

Climate change makes it necessary to create genotypes of plants that will be able to develop and provide high yields under the new pedoclimatic conditions and, at the same time, will contribute to the mitigation of desertification processes. Interspecific genotypes, in terms of possible uses, show high plasticity, but may not be able to overcome the barrier set by climatic change. The analysis of the photosynthesis-irradiance curve allows understanding the ecophysiological traits of a species and, in turn, these indices allow us to compare different genotypes of plants under more or less similar conditions, thus determining the potential productivity and resistance to environmental factors. Global warming will increase the frequency of days with extremely high temperatures, which can directly affect the agricultural sector. Climate change will have a negative impact on the quality and productivity of agricultural crops and, in the case of failure to take adaptation measures, the agricultural sector will suffer colossal damage. The goal of this research has been to evaluate the parameters of the photosynthesis-irradiance curve of the intraspecific and interspecific genotypes of grapevine, thus determining their productivity and resistance to biotic and abiotic factors. The dependence of photosynthesis on solar irradiance has allowed evaluating the efficiency of the use of light energy by the genotypes of grape vine. Thus, it has been found that the interspecific genotypes of grapevine (Vitis vinifera L. x Muscadinia rotundifolia Michx.) are more effective in the production process than the intraspecific genotypes of grapevine.