Flexible PI-Based Plant Drought Stress Sensor for Real-Time Monitoring System in Smart Farm

Abstract

Plant growth and development are negatively affected by a wide range of external stresses, including water deficits. Especially, plants generally reduce the stomatal aperture to decrease transpiration levels upon drought stress. Advanced technologies, such as wireless communications, the Internet of things (IoT), and smart sensors have been applied to practical smart farming and indoor planting systems to monitor plants’ signals effectively. In this study, we develop a flexible polyimide (PI)-based sensor for real-time monitoring of water conditions in tobacco plants. The stoma response, by which a plant adjusts to drought stress to maintain homeostasis, can be confirmed through the examination of evaporated water. Using a flexible PI-based sensor, a plant’s response variation is translated into an electrical signal. The sensors are integrated with a Bluetooth (BLE) module and a processing module and show potential as smart real-time water sensors in smart farms.

Plant phenotyping relevance

タバコの乾燥ストレスに伴う気孔応答・水分状態を電気信号として取得する柔軟センサーを開発しており、植物状態の取得法が研究の中心です。

Code and data availability

The article describes a flexible PI-based drought sensor and its measurements (capacitance, stoma size, bending tests) but contains no data availability statement, no public phenotype dataset, no deposited images or sensor data, and no author code or model release. The only URL present is the standard CC BY 4.0 license

No evidence-backed public reproduction asset is currently recorded.