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植物生物传感器分析用于监测花水的状态

María R Conesa¹, Wenceslao Conejero¹, Juan Vera¹

¹Irrigation Department, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), P.O. Box 164, 30100 Murcia, Spain.

|December 27, 2024

概括

干微电压计 (MTs) 是监测花蜜树水状态的最敏感的生物传感器,其性能优于数字灌系统中的TDR和LVDT传感器. 这一发现有助于精准农业和水资源管理.

科学领域:

农业工程农业工程
植物生理学植物生理学
传感器技术传感器技术

背景情况:

实时监测植物用水状态对于优化灌和提高农业用水生产率至关重要.
数字灌系统依靠精确的生物传感器来有效评估植物的水需求.

研究的目的:

为了比较三个连续植物水状态生物传感器的有效性:干微电压计 (MTs),干时间域反射计 (TDR) 和LVDT传感器.
为了评估花树在不同的土壤缺水水平下 (MAD10,MAD50,MAD100,MAD0) 的传感器性能.

主要方法:

蜜花树经历了四次灌,这些灌是基于管理允许赤字 (MAD) 概念的.
记录了干部水潜力 (Ψtrunk),干部收缩 (MDS) 和干部液压导电性 (Ktrunk) 的连续测量.
树干水潜力 (Ψstem) 和叶子气交换在代表性日间进行了测量.

主要成果:

树干和树干水潜力 (Ψstem) 显示对土壤含水量有很强的依赖.
干部收缩 (MDS) 对环境变化更具反应性,但对严重的水资源短缺不那么敏感.
树干微电压计 (MTs) 在检测植物水状况变化方面表现出最高的灵敏度,特别是在缺水条件下.

结论:

树干微电压计 (MTs) 显示出作为一种有价值的生物传感器,在数字农业系统中实时监测花树水的状态的巨大潜力.
Ψtrunk 和 Ψstem 是水短缺的可靠指标,而 MDS 在严重短缺的情况下有局限性.
Ktrunk,特别是KtrunkFD,表明了歇斯底里,但是最弱的个体指标.

关键词:

在 LVDT 传感器上.数字化灌系统 (DIS) 是指数字化灌系统.管理允许的赤字 (MAD)微电压计 (MTs) 是一种微电压计.植物水关系植物水关系时间域反射计 (TDR)

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