高生长季节的温度限制了葡萄藤从冬季的恢复
Lindsey Burbank1, Mark S Sisterson1, Wei Wei1
1Crop Diseases, Pests, and Genetics Research Unit, Agricultural Research Service, USDA, Parlier, CA 93648.
Plant disease
|June 6, 2023
概括
葡萄酒从Xylella fastidiosa感染中恢复是有限的,即使在温和的冬季. 这表明冬季恢复并不是限制皮尔斯病在全球传播的主要因素.
科学领域:
- 植物病理学 植物病理学
- 葡萄种植 葡萄种植 葡萄种植
- 细菌学 细菌学是一门学科.
背景情况:
- 紫菌 (Xylella fastidiosa) 在葡萄树中引起皮尔斯病,影响全球农业.
- 气候显著影响病原体的传播和疾病严重程度,影响管理策略.
- 葡萄酒从X. fastidiosa中恢复是取决于温度的,寒冷促进恢复.
研究的目的:
- 评估不同葡萄品种在模拟关键加利福尼亚葡萄酒地区的条件下冬季恢复的潜力.
- 评估温度变化对X. fastidiosa在食用葡萄和葡萄酒品种的恢复的影响.
- 根据气候变化和区域气候差异,为X. fastidiosa的传播进行风险评估.
主要方法:
- 机械接种的葡萄树 (六种品种) 接受了受控的温室变暖处理.
- 葡萄树暴露于模拟的季节性接种日期,然后被转移到冷室进行冬季恢复评估.
- 在温度调节下评估恢复率,这些温度调节代表了圣若金山谷的气候.
主要成果:
- 在所有测试的品种和治疗中,Xylella fastidiosa感染的葡萄树的冬季恢复通常是有限的.
- 在评估的六种不同葡萄品种中观察到恢复的微小差异.
- 该研究发现有限的证据支持测试品种的冬季显著恢复.
结论:
- 在模拟炎热的夏季和温和的冬季气候的条件下,葡萄树在Xylella fastidiosa感染后的冬季恢复是最小的.
- 鉴于全球气温上升和普遍的炎热气候,冬季恢复不太可能成为限制皮尔斯病传播的主要因素.
- 管理策略不应该依赖于冬季恢复作为Xylella fastidiosa的重要控制机制.
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