期刊
BIOLOGY-BASEL
卷 9, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/biology9030058
关键词
climate change; mitigation treatments; Vitis vinifera L; polyphenols; tannins; anthocyanins
类别
资金
- PLATAFORMA DE INOVACAO DA VINHA E DO VINHO-INNOVINEWINE [NORTE-01-0145-FEDER-000038]
Grapevine physiology is influenced by several environmental factors, such as temperature, precipitation, potential evapotranspiration, and sunshine hours. Due to climatic changes, effects in grapevine physiology and consequently on the grape berry composition and quality have been observed. This work aims to make a comparative study of the effect of foliar mitigation treatment with kaolin (5%) and potassium silicates (0.1% and 0.05%) on the grape berry quality; namely on berry weight, pH, probable alcohol, total phenolics, tannins, total anthocyanins, monomeric anthocyanins, calcium, potassium, and magnesium composition from Portuguese grapevines (Vitis vinifera L. cv. Touriga Nacional and Touriga Franca). The results suggested that the phenolic composition and anthocyanin content differs between treatments while other parameters showed distinct behavior among the different applications. Qualitative parameters observed in the present study suggested non-significant changes upon both the applications.
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