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通过高和的协同作用调节夏季压力下的葡萄酒性能和荷尔蒙动态
Sandra Pereira1,2, Ana Monteiro1,2, Miguel Baltazar1,2
1Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal.
Frontiers in plant science
|August 22, 2025
概括
(Kl) 和 (Si) 混合物的叶子应用提高了葡萄藤对气候变化引起的夏季压力的抵抗力. 这些疗法提高了生理功能和水果质量,为葡萄种植提供了可持续的解决方案.
科学领域:
- 葡萄种植和植物生理学
- 环境压力生物学
- 农业化学
背景情况:
- 气候变化对葡萄种植造成热量和干旱压力,对葡萄的产量和葡萄的质量产生负面影响.
- 高温和干旱会通过影响胃导电性和光合作用等生理过程来降低葡萄藤的弹性.
- 可持续策略对于减轻对葡萄树的不利影响至关重要.
研究的目的:
- 评估叶子 (Kl) 和 (Si) 混合物在减轻葡萄树夏季压力的有效性.
- 评估这些治疗对葡萄藤生理,水果质量和应激弹性的影响.
- 了解Kl和Si作用的潜在生理和生化机制.
主要方法:
- 在杜罗地区的Touriga Franca葡萄树上进行了两季的实地实验.
- 处理包括对照剂和四种不同度的高和 (Si) 配方 (2-8%).
- 评估的生理参数 (气体交换,叶绿素光,水潜力),生物化学标记 (颜料,糖,),叶子解剖学和荷尔蒙特征 (ABA,IAA,JA,SA).
主要成果:
- Si 和 Kl 处理,特别是 MiKS 3 和 MiKS 4, 显著改善了气体交换,水潜力和叶绿素光.
- 观察到增加的叶绿素,胡卜素,皮质和皮质厚度,表明植物活力和承受压力的改善.
- 激素分析显示酸 (ABA) 和酸 (JA) 增加,酸 (IAA) 和酸 (SA) 减少,这表明激活了压力信号通路.
结论:
- 和混合物的叶子应用有效地减轻了葡萄树的夏季压力.
- 这些疗法增强生理功能,改善应激抵抗力,并对生化和解剖特征产生积极影响.
- Si和Kl混合物是面临挑战性气候条件的葡萄种植有前途的可持续战略.
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