College of Enology, Northwest A&F University, Yangling 712100, Shaanxi, China.
Molecules. 2012 Dec 27;18(1):381-97. doi: 10.3390/molecules18010381.
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.
避雨栽培是一种防止葡萄收获期降雨危害的有效栽培方式，在中国多雨地区得到了广泛应用。本研究通过与露天栽培的比较，在两个年份（2010 年和 2011 年）调查了避雨栽培对葡萄病害和果皮中酚类物质组成的影响。结果表明，避雨栽培可显著降低葡萄病害的发生，延迟了赤霞珠果实的成熟。对于本研究中鉴定的大多数酚类化合物，与露天栽培相比，避雨栽培的葡萄样品中其含量降低。然而，避雨栽培刺激了二氢槲皮素-3-O-鼠李糖苷在葡萄成熟过程中在果皮中的积累。这与避雨栽培中使用塑料覆盖物对葡萄园小气候的改变有关。这表明，避雨栽培使得在有机生产系统中种植“赤霞珠”葡萄成为可能，从而降低了葡萄和葡萄酒行业中病害的发生和对化学农药的依赖。
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