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. 2012 Dec 27;18(1):381-97.
doi: 10.3390/molecules18010381.

Effect of rain-shelter cultivation of Vitis vinifera cv. Cabernet Gernischet on the phenolic profile of berry skins and the incidence of grape diseases

Jiang-Fei Meng  1 , Peng-Fei Ning, Teng-Fei Xu, Zhen-Wen Zhang
Affiliations

Effect of rain-shelter cultivation of Vitis vinifera cv. Cabernet Gernischet on the phenolic profile of berry skins and the incidence of grape diseases

Jiang-Fei Meng et al. Molecules. .

Abstract

Rain-shelter cultivation is an effective cultural method to prevent rainfall damage during grape harvest and widely applied in the Chinese rainy regions. In this study we investigated the effect of rain-shelter cultivation on grape diseases and phenolic composition in the skins of Vitis vinifera cv. Cabernet Gernischet grape berries through the comparison with open-field cultivation at two vintages (2010 and 2011). The results showed that rain-shelter cultivation reduced the incidence of grape diseases significantly and delayed the maturation of Cabernet Gernischet fruits. With regards to most of the phenolic compounds identified in this study, their content in grape samples under rain-shelter cultivation was decreased compared to those under open-field cultivation. However, rain-shelter cultivation stimulated the accumulation of dihydroquercetin-3-O-rhamnoside in grape skins during grape maturation. These were related with micrometeorological alterations in vineyards by using plastic covering under rain-shelter cultivation. It suggests the rain-shelter cultivation makes possible the cultivation of "Cabernet Gernischet" grapes in an organic production system, for providing a decrease in the incidence of diseases and the dependence on chemical pesticides in the grape and wine industry.

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Figures

Figure 1
Figure 1
Changes of sugar and titratable acids in grape berry during ripening period in the 2010 (A) and 2011 (B) vintage.
Figure 1
Figure 1
Changes of sugar and titratable acids in grape berry during ripening period in the 2010 (A) and 2011 (B) vintage.
Figure 2
Figure 2
Flavonols distribution of grape samples in 2010 (A) and 2011 (B) vintage.
See this image and copyright information in PMC

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