Viticultural strategies for improving the ripening and aromatics in Gewurztraminer grapes

改善琼瑶浆葡萄成熟和芳香的葡萄栽培策略

• 批准号: 532013-2018
• 负责人: Castellarin, SimoneDiego
• 金额: $ 1.82万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=646965
• 关键词: Viticultural; strategies; improving; ripening; aromatics

Saison Enterprises Ltd. has been producing grapes for more than 10 years and owns one of the largest vineyards in Vancouver Island. Because of the optimal location of its vineyard, Saison Enterprises Ltd. can normally grow high quality grapes that are sold to top wineries. Saison Enterprises Ltd. owns high-density vineyards and utilizes traditional and dry farming techniques to obtain concentrated flavours and high quality fruit. In Vancouver Island and Gulf Islands, Saison Enterprises Ltd. is a major player of the grape and wine industry.**Viticulture in Vancouver Island and the Gulf Islands faces numerous challenges. Among those challenges, slow ripening and a relatively short growing season are, in some seasons, serious constraints for aroma accumulation in grapes and for wine quality. Nevertheless, Vancouver Island and the Gulf Islands produce premium wines that are nationally recognised. The quality of white grapes and wines is strongly affected by the amount of aromatics that are accumulated in the grape tissues. Particularly, terpene compounds, that are accumulated during the late phases of ripening, determine the typical aroma of several grapes and wines such as Gewürztraminer. Recent experiments in vineyards have indicated that applying hormones at certain stages can accelerate ripening and/or improve the grape and wine aroma in aromatic varieties. However, very limited information is available for white grapes and particularly on how different hormones impact the berry ripening process and berry composition in these grapes. **In this project, we will explore the interactions of different hormones on terpene biosynthesis in a Gewürztraminer vineyard. We will investigate the effects of these treatments on berry growth and metabolism (sugars, acids, and terpenes). The goal of this project is to supply information to grape growers on the control of berry ripening and composition, and develop new viticultural strategies for modulating berry ripening and terpene accumulation in grapes grown in Vancouver Island and the Gulf Islands.

Saison Enterprises Ltd.已经生产葡萄超过10年，拥有温哥华岛最大的葡萄园之一。由于其葡萄园的最佳位置，Saison Enterprises Ltd.通常可以种植高品质的葡萄，并出售给顶级酒庄。Saison Enterprises Ltd.拥有高密度的葡萄园，并利用传统和旱作农业技术来获得浓缩的风味和高品质的水果。在温哥华岛和海湾群岛，Saison Enterprises Ltd.是葡萄和葡萄酒行业的主要参与者。温哥华岛和海湾群岛的葡萄种植面临着许多挑战。在这些挑战中，成熟缓慢和生长季节相对较短，在某些季节，严重制约了葡萄香气的积累和葡萄酒的质量。然而，温哥华岛和海湾群岛生产的优质葡萄酒是全国公认的。白色葡萄和葡萄酒的质量受到葡萄组织中积累的芳香物质的强烈影响。特别是，在成熟后期积累的萜烯化合物决定了几种葡萄和葡萄酒（如Gewürztraminer）的典型香气。最近在葡萄园的实验表明，在某些阶段施用激素可以加速成熟和/或改善芳香品种的葡萄和葡萄酒的香气。然而，关于白色葡萄的信息非常有限，特别是关于不同激素如何影响这些葡萄中的浆果成熟过程和浆果成分的信息。** 在这个项目中，我们将探索不同激素对琼瑶浆葡萄园中萜烯生物合成的相互作用。我们将研究这些处理对浆果生长和代谢（糖，酸和萜烯）的影响。该项目的目标是为葡萄种植者提供有关浆果成熟和成分控制的信息，并开发新的葡萄栽培策略，以调节温哥华岛和海湾群岛葡萄的浆果成熟和萜烯积累。