The valorization of viticultural resources taking into account the need to adapt to climate change
2023
E. Alexandrov
Anthropogenic activity significantly disrupts the composition and quantity of greenhouse gases in the environment. The increase in the concentration of greenhouse gases in the atmosphere, as a result of industrial activity, contributes to the strengthening of the greenhouse effect, and finally, the additional warming of the atmosphere takes place. The amount of greenhouse gases in the atmosphere is determined by the difference between greenhouse gas emissions and sequestration. Photosynthesis, respiration, transpiration, stomatal conductance, assimilation, etc. can be used in the plant breeding process, with the aim of identifying plant genotypes with an increased potential for capturing CO2 from the atmosphere. In carrying out the study, grapevine genotypes of intraspecific origin Vitis vinifera L. and genotypes of interspecific origin (Vitis vinifera L. x Muscadinia rotundifolia Michx.) were used. Measurements were made during the period up to flowering, berry formation (growth) and mature berry (formed) period. Phytomonitoring was carried out by using the PTM-48A monitor, which is an automatic CO2 exchange monitoring system. It was found that the interspecific grapevine genotypes have a much higher performance than the intraspecific genotypes in relation to the change of climatic factors. The respective methodology can be applied in the breeding process of other plant crops.
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