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https://doi.org/00.00000/0000-0000-0000-0-00

Alexandrov E.G. — Doctor of Biological Sciences, Chief Scientific; Scientist of the University of Moldova, Alexei Mateevici, 60, Chisinau, Republic of Moldova, MD-2009; +37379450998; alexandrov.eugeniu@gmail.com; ORCID: 0000-0003-0077-5802

THE CAPACITY OF GRAPEVINE GENOTYPES TO CAPTURE CO₂ FROM THE ATMOSPHERE

Резюме. According to calculations of the inventory of greenhouse gases emitted into the atmosphere, it was found that CO₂ accounts for about 80%.Cultivation of agricultural plant genotypes with an increased potential for capturing CO₂ from the atmosphere represents an additional benefit for economic agents, expressed through the sale of «green allowances» (the equivalent of CO₂ produced), to economic agents, which do not fit into the technological process of absorbing greenhouse gases emitted into the atmosphere. In the study, the intraspecific grapevine genotypes from the Vitis vinifera L. subspecies sylvestris Gmel. group and the genotypes from the D.C. sativa subspecies group were used: Feteasca albа; Feteascа neagrа etc., as well as interspecific genotypes Vitis vinifera L. ssp. sativa D.C. x Muscadinia rotundifolia Michx.: Ametist, Augustina, Alexandrina, BC3-580 etc. The coefficient of capture of CO₂ from the atmosphere was determined with the help of the light saturation curve method for photosynthesis, using the PTM-48A phytomonitor. The results of the study demonstrated that the interspecific grapevine genotypes Vitis vinifera L. ssp. sativa D.C. x Muscadinia rotundifolia Michx. have a CO₂ capture coefficient from the atmosphere that is twice as high compared to the intraspecific genotypes from the Vitis vinifera L. ssp. sativa D.C. group.

Ключові слова: CO₂, climate change, genotypes, grapevine, photosynthesis.