ビティス・ヴィニフェラ (Vitis vinifera) の植物性,生理学的,ベリー品質のパラメータを改善する海藻抽出物の可能性を評価する. 涼しい気候条件下でのシャルドネ
Johan Yssel1,2,3, Vicky Everaerts4, Wendy Van Hemelrijk4
1Department of Microbial and Molecular Systems (M2S), CMPG Laboratory for Process Microbial Ecology and Bioinspirational Management (PME&BIM), KU Leuven, Leuven, Belgium.
PloS one
|September 2, 2025
まとめ
海藻のエキス,特にアスコフィラム・ノドサムは,冷たい気候でブドウの葉面積とベリーの質を高めます. エクロニア・マクシマは,より暖かい環境で収穫量を増やし,栽培に特異的な影響を及ぼした.
科学分野:
- 葡萄栽培と植物学
- 海洋生物技術
- 農業科学
背景:
- 海藻の抽出物は ワイン栽培の強力な生物刺激剤として 登場しています
- 冷たい気候の白ブドウの品種への影響に関する研究は限られている.
- エクロニア・マキシマの生物刺激作用は まだ十分に研究されていない.
研究 の 目的:
- Ascophyllum nodosumとEcklonia maximaのエキスがベルギーのシャルドネのブドウに及ぼす影響を評価する.
- 植物の成長,生理学的パラメータ,ベリーの発達への影響を評価する.
- 海藻の抽出物をNPK受精と対照処理と比較する.
主な方法:
- 2種類の商業用海藻エキス (A. nodosum,E. maxima) を葉面に塗り,NPK基準処理を行う.
- 2つの成長期 (2021-2022) にわたって,開花から熟成まで5回治療を行いました.
- 葉面,クロロフィール含有量指数 (CCI),光システムII (PSII) の効率,ベリーのサイズ,糖分含有量,収穫量などが測定された.
主要な成果:
- A.ノドサムは2021年に葉面 (+12-15%),CCI (+12%) とPSII反応センター密度 (+6%) を大幅に増加させた.
- A.ノドサムはPSIIの最大量産 (Fv/Fm) を1.5%改善し,2022年にはベリーのサイズと糖分を増加させました.
- E. maximaは限られたベジタティブおよび生理学的効果を示したが,次のシーズンには収穫量 (+60%) が増加した.NPK-Refも収穫量 (+80%) が増加した.
結論:
- アスコフィラム・ノドサムベースの海藻のエキスは,冷たい気候でブドウの葉面,生理,ベリーの質を高めます.
- エクロニア・マキシマのエキスは,特に暖かい季節の収穫を促進します.
- 葡萄栽培における海藻抽出物の有効性は,海藻の種と環境条件によって影響を受けます.
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