AdapTree: Data-Driven Approach to Assessing Plant Stress Through the AI-Sensor Synergy

Abstract

This study investigates plant stress assessment by integrating advanced sensor technologies and Artificial Intelligence (AI). Multi-sensor data—including electrical impedance spectroscopy, temperature, and humidity—were used to capture plant physiological responses under environmental stress conditions. The key task addressed was the prediction of stress-related parameters using machine learning. A novel boosting-based ensemble method, AdapTree, combining AdaBoost and decision trees, was proposed to improve predictive accuracy and model interpretability. Experimental evaluation across multiple regression metrics demonstrated that AdapTree outperformed baseline models, achieving an R2 score of 0.993 for impedance magnitude prediction and 0.999 for both relative humidity (RH) and temperature, along with low root mean squared error (134.565 for impedance, 0.006966 for RH, and 0.0050099 for temperature) and mean absolute error values (22.789 for impedance; 1.51 × 10−5 for RH and 2.51 × 10−5 for temperature). These findings validate the reliability and effectiveness of the proposed AI-driven framework in accurately interpreting sensor data for plant stress detection. The approach offers a scalable, data-driven solution to enhance precision agriculture and agricultural sustainability. Furthermore, this method can be extended to monitor additional stress markers or applied across diverse plant species and field conditions, supporting future developments in intelligent crop monitoring systems.

Plant phenotyping relevance

植物ストレス状態の取得・推定を目的にマルチセンサーと機械学習手法を開発し、ベースラインとの性能比較で検証しており、フェノタイピング手法が研究の中心である。

Code and data availability

The paper's plant-phenotyping measurements (EIS, gravimetric PlantArray, and environmental sensor data from tobacco plants) are paper-specific, but the Data Availability Statement only offers them upon reasonable request, with no public deposit or URL. No author analysis code, trained models, or public repository is披露.

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