Potato (Solanum tuberosum L.) tuber-root modeling method based on physical properties

Area of Science:

• Agricultural Engineering
• Plant Science
• Computational Biology

Background:

• Developing accurate plant root system models is crucial for understanding soil-plant interactions.
• Existing methods for modeling tuber-root systems are often complex and lack detailed physical property integration.

Purpose of the Study:

• To propose a novel method for constructing a 3D potato tuber-root system model.
• To determine key characterization parameters for potato tuber-root models.
• To validate the model's accuracy and applicability.

Main Methods:

• Analysis of topological and geometric structures of three early-maturing potato varieties.
• Field data collection, parameter measurement, and statistical analysis to build a parameter database.
• Simulation of root tip growth to obtain root trajectory points and 3D model construction using MATLAB.

Main Results:

• A database of potato tuber-root model parameters was established.
• A 3D visualization system for potato tuber-root models was developed.
• Experimental verification showed acceptable model performance with relative root mean square errors between 6.81% and 15.32%.

Conclusions:

• The proposed method effectively constructs accurate 3D potato tuber-root models.
• The model provides a valuable reference for studying soil-tuber-root interactions and designing agricultural machinery.
• This approach can be adapted for modeling other tuber crop root systems.