Influence of Environmental Factors on Some Biochemical and Physiological Indicators in Grapevine from Copou Vineyard, Iasi, Romania

Climate factors strongly impact the growth of grapes and their flavonoid composition, especially due to heat and drought stress. Four varieties—Gelu, Moldova, Purpuriu, and Coarna Neagra—from a Copou vineyard were analyzed to assess the impact of climate change on the anthocyanin concentration in gr...

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Bibliographic Details
Published in:Agronomy (Basel) 2023-03, Vol.13 (3), p.886
Main Authors: Marta, Alina Elena, Slabu, Cristina, Covasa, Mihaela, Motrescu, Iuliana, Lungoci, Constantin, Jitareanu, Carmenica Doina
Format: Article
Language:English
Subjects:
Analysis
Anthocyanin
Anthocyanins
Antioxidants
Berries
Carbon dioxide
Chlorophyll
Climate change
Cultivars
Drought
Environmental factors
Environmental impact
Flavonoids
Fruits
Global temperature changes
Grapes
Grapevines
photosynthesis
Physiological aspects
Physiological effects
Physiology
Pigments
Precipitation
R&D
Radiation
Rain
Research & development
table grapes
Variance analysis
Vineyards
Vitaceae
Water deficit
Wine industry
Wineries
Wineries & vineyards
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Summary:Climate factors strongly impact the growth of grapes and their flavonoid composition, especially due to heat and drought stress. Four varieties—Gelu, Moldova, Purpuriu, and Coarna Neagra—from a Copou vineyard were analyzed to assess the impact of climate change on the anthocyanin concentration in grapes and total chlorophyll content of the leaves, and find possible correlations between these parameters during the two studied years, such as to raise producer awareness regarding the climate impact on table grape vine growth. Moldova and Purpuriu show adaptation to a slight temperature increase above the normal average and also to a water deficit, with increased concentrations of anthocyanins of up to three times. The Moldova variety accumulated low amounts of chlorophyll pigments in most analyzed development phases, indicating a negative correlation between these pigments. Coarna neagra exhibited an increase of the foliar pigments, a variety that proved to be less valuable from the point of view of anthocyanin content. Positive correlations were found between the anthocyanin and chlorophyll concentrations in the case of Gelu, Moldova, and Coarna neagra cultivars during the latter phase of the fruit development, whereas the water deficit in the second year induced negative correlations during fruit development and at the time of harvest for all studied varieties except Moldova.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy13030886