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3D Laser Triangulation for Plant Phenotyping in Challenging Environments
Katrine Heinsvig Kjaer1, Carl-Otto Ottosen2
1Department of Food Science, Aarhus University, Kirstinebjergvej 10, 5792 Aarslev, Denmark. katrine.kjaer@food.au.dk.
Sensors (Basel, Switzerland)
|June 13, 2015
Summary
High-throughput plant phenotyping using 3D laser scanning accurately tracks daily growth. This method is robust in challenging environments and does not impact plant photosynthesis, aiding genotype-environment interaction studies.
Area of Science:
- Plant Science
- Genetics
- Environmental Science
Background:
- Understanding genotype-environment interactions is crucial for plant science.
- High-throughput plant phenotyping methods are needed for research in natural environments.
- Studying plants in natural settings at high temporal resolution can reveal stress interactions and epigenetic regulation.
Purpose of the Study:
- To evaluate a commercial 3D NIR-laser scanner (PlantEye) for high-precision daily plant growth tracking.
- To assess the scanner's impact on plant photosynthetic performance.
- To determine the scanner's ability to estimate phenotypic variation in Brassica napus genotypes.
Main Methods:
- Utilized a 3D NIR-laser scanner (PlantEye) for non-invasive, high-temporal resolution plant monitoring.
- Measured daily changes in plant growth parameters.
- Correlated scanned data with destructive growth measurements for validation.
- Assessed photosynthetic performance to ensure no adverse effects from the laser.
Main Results:
- The NIR laser beam did not negatively affect plant photosynthetic performance.
- Phenotypic variation among ten Brassica napus genotypes was accurately estimated using scanned parameters.
- A simple linear correlation was established between scanned data and destructive growth measurements.
- The 3D laser triangulation method demonstrated high precision in challenging environments.
Conclusions:
- 3D laser triangulation is a promising, non-invasive technique for high-throughput plant phenotyping.
- The PlantEye scanner provides precise, daily growth measurements suitable for challenging environments.
- This technology enhances the study of genotype-environment interactions and plant responses to stress.
