Rhizotron Transparent Wall Root Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for phenotyping plant roots are limited by high costs, low availability of equipment, insufficient spatial resolution for small diameter roots, and inability to dynamically monitor root development in a large number of plants, particularly for medium to large-sized plants with extensive root networks.
Innovation Solution
A rhizotron device with a cylindrical design, featuring a transparent outer wall for imaging and a system for supplying liquid to the root propagation space, allowing for high-throughput phenotyping of medium to large-sized plants by imaging roots without destroying them, and accommodating various substrate conditions and microorganisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If whole plants are removed and roots are washed to determine length or density, then root parameters can be measured, but root deterioration occurs causing measurement errors
Solution Approach 1:
The invention uses imaging technology to create visual copies of the root system within the transparent rhizotron, allowing measurement without physical manipulation. The transparent wall enables direct observation and imaging of roots in situ, eliminating the need to remove plants or wash roots, thus preserving root integrity while obtaining accurate measurements.
2Measurement precision
If X-ray or laser beam exposure methods are used to determine root geometry, then root network images can be acquired, but the methods are slow and cannot dynamically monitor large numbers of plants
Solution Approach 1:
The transparent wall of the rhizotron allows direct optical imaging of roots using conventional cameras or imaging systems, creating visual copies of the root network. This eliminates the need for complex X-ray or laser equipment, enabling rapid imaging of multiple plants simultaneously and allowing dynamic monitoring of large numbers of plants.
Solution Approach 2:
The invention replaces complex mechanical or physical systems (X-ray equipment, laser beams) with simpler optical imaging through the transparent wall. This substitution dramatically reduces equipment complexity and imaging time, enabling high-throughput monitoring of multiple plants.
3Ease of operation
If mini-rhizotrons with transparent walls are used for root phenotyping, then direct root observation is possible, but the devices are suitable only for small plants with root networks not exceeding a few centimeters
Solution Approach 1:
The invention transitions from two-dimensional surface observation in mini-rhizotrons to three-dimensional internal observation through the transparent wall. This allows roots of any size to be observed within the rhizotron volume, accommodating medium to large plants with extensive root networks while maintaining direct observation capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and non-destructive imaging of root networks, facilitating the selection of plants adapted to specific environmental conditions and improving our understanding of root physiology and adaptation to fluctuating environmental constraints.
Implementation Method 1
an outer wall (13), cylindrical of revolution... defining with the inner wall (12) a space for root propagation (11)... enabling efficient and non-destructive imaging of root networks
Data Source
Figure 1~9
Figure 2~3
Figure 4~6
AI summary
The rhizotron (10) has an inner wall (12) coaxial with an external wall (13) and defining a root propagation space (11) intended to receive a substrate along with the external wall. An upper part of a housing (45) supports a seed independently from presence of the substrate within the space. The housing is in communication with the space. A supply system supplies liquid e.g. water or nutritive solution, to the space. The space comprises a set of zones including a liquid storage zone and a root propagation zone. The inner wall consists of a material chosen from a polymeric natural or synthetic material. The internal wall consists of a material of metal. An independent claim is also included for a method for determining a phenotypic characteristic of roots of plants.