Electrical impedance spectroscopy (EIS) in plant roots research: a review

Plant Methods

Gang Zhang¹  Ji Qian¹  Bao Di¹  DongMing Li²  ZhenHui Ren²  Yang Liu² 

[1] College of Horticulture, Hebei Agricultural University;College of Mechanical and Electrical Engineering, Hebei Agricultural University;

关键词: Electrical impedance spectroscopy (EIS);    Plant root;    Root electrical characteristics;    Equivalent circuit;   

DOI  :  10.1186/s13007-021-00817-3

来源: DOAJ

【 摘 要 】

Abstract Nondestructive testing of plant roots is a hot topic in recent years. The traditional measurement process is time-consuming and laborious, and it is impossible to analyze the state of plant roots without destroying the sample. Recent studies have shown that as an excellent nondestructive measurement method, although electrical impedance spectroscopy (EIS) has made great achievements in many botanical research fields such as plant morphology and stress resistance, there are still limitations. This review summarizes the application of EIS in plant root measurement. The experiment scheme, instrument and electrode, excitation frequency range, root electrical characteristics, equivalent circuit, and combination of EIS and artificial intelligence (AI) are discussed. Furthermore, the review suggests that future research should focus on miniaturization of measurement equipment, standardization of planting environment and intelligentization of root diagnosis, so as to better apply EIS technology to in situ root nondestructive measurement.

【 授权许可】

Unknown