通过源-沉积-运输平衡,通过相对湿度和田间容量协调调节番茄糖的积累
Wei Han1, Xindi Zhang1, Yinghui Hao1
1Jiangsu Provincial University Key Laboratory of Agricultural and Ecological Meteorology, School of Ecology and Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, China.
Frontiers in plant science
|March 13, 2026
概括
优化空气相对湿度 (RH) 和土壤湿度 (田间容量,FC) 是番茄糖累积的关键. 较低的土壤湿度和较低的RH通过影响光合作用和酶活性,显著增加了糖含量.
科学领域:
- 植物生理学 植物生理学
- 园艺科学 园艺科学
- 农业气象 农业气象学
背景情况:
- 番茄果糖的积累受环境因素的影响,包括空气相对湿度 (RH) 和土壤水分 (田间容量,FC).
- 了解这些因素的调节机制对于优化控制环境中的番茄质量至关重要.
研究的目的:
- 为了阐明RH和FC在番茄水果中糖累积的相互作用.
- 分析RH和FC对光合作用,透气,血管运输和糖代谢酶活性的影响.
主要方法:
- 在受控条件下种植了两种番茄品种 ("西","金红208"),其RH (40-95%) 和FC (40%,80%).
- 测量包括光合作用速率,口腔导电性,透气,血管运输,糖代谢酶活性和糖含量.
- 统计分析包括灰色关系和路径分析,以确定RH和FC的影响.
主要成果:
- 低FC (40%) 增加了糖代谢酶活性和糖积累,尽管光合作用减少.
- 高RH (95%) 降低了光合作用,口腔导电性,酶活性和糖含量 (葡萄糖,果糖,糖糖).
- 两种品种的40%RH和40%FC下观察到的可溶糖含量最高.
结论:
- 红显著影响糖的新陈代谢和积累,主要是通过对透气,酶活性和体运输的影响.
- 低FC影响光合作用和体运输,低FC促进糖的积累.
- 空气湿度管理对于水果质量监管至关重要,特别是在充足的供水条件下,为温室生产提供了洞察力.
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