2022 Fiscal Year Final Research Report
Novel wine grape cultivation model for global warming adaptation using a forcing vine regrowth cultivation technique.
Project/Area Number |
20K06014
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 39030:Horticultural science-related
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Research Institution | University of Yamanashi |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | ブドウ / ワイン / 気候変動 / 温暖化適応技術 / 副梢栽培 |
Outline of Final Research Achievements |
Forcing vine regrowth cultivation technique, involving shoot cutting and flower cluster removal, is a potential adaptation technique in wine grape cultivation for mitigating global warming. Using the same “Muscat Bailey A” and “Cabernet Sauvignon” grapevine, we investigated the effectiveness of this cultivation technique on the date of growth stage and berry quality over the years by setting two treatment timings. A decrease in mean air temperature by shifting the ripening period to cooler season resulted in an increase in malic acid and anthocyanin contents in grapes every year. These results suggest that by controlling the timing of shoot cutting and flower cluster removal, the harvest time and berry quality can be altered as desired. We also examined the shoot training system of this cultivation technique to improve yields and investigated the factors influencing the induction of flower clusters on the induced lateral shoot after shoot cutting.
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Free Research Field |
ワイン醸造学
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Academic Significance and Societal Importance of the Research Achievements |
気候変動による気温の上昇は、ワイン用ブドウの着色不良、酸味や香りの減少を通してワインの品質低下をもたらす脅威である。本研究の成果は、特別な設備を必要とせずに成熟時期を遅らせて、気候変動による気温上昇の影響を緩和できる新たなブドウ栽培モデルとして普及が期待される。露地栽培においてブドウの成熟時期を人為的に変更できるようになることで、気象条件がワインの品質に及ぼす影響の解析など、更なる研究の発展が望まれる。
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