UAV Remote Sensing for High-Throughput Phenotyping and for Yield Prediction of Miscanthus by Machine Learning Techniques

Miscanthus holds a great potential in the frame of the bioeconomy, and yield prediction can help improve Miscanthus’ logistic supply chain. Breeding programs in several countries are attempting to produce high-yielding Miscanthus hybrids better adapted to different climates and end-uses. Multispectr...

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Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2022-06, Vol.14 (12), p.2927
Main Authors: Impollonia, Giorgio, Croci, Michele, Ferrarini, Andrea, Brook, Jason, Martani, Enrico, Blandinières, Henri, Marcone, Andrea, Awty-Carroll, Danny, Ashman, Chris, Kam, Jason, Kiesel, Andreas, Trindade, Luisa M., Boschetti, Mirco, Clifton-Brown, John, Amaducci, Stefano
Format: Article
Language:English
Subjects:
Agricultural production
Algorithms
Biomass
Crops
Growth models
high-throughput phenotyping
Hybrids
Image acquisition
Intercalibration
Interception
Interoperability
Light interception
Logistics
Machine learning
Miscanthus
multispectral images
Phenotyping
Precipitation
Predictions
Remote sensing
Seasons
Sensors
Supply chains
Sustainable production
Time series
UAV
Unmanned aerial vehicles
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Summary:Miscanthus holds a great potential in the frame of the bioeconomy, and yield prediction can help improve Miscanthus’ logistic supply chain. Breeding programs in several countries are attempting to produce high-yielding Miscanthus hybrids better adapted to different climates and end-uses. Multispectral images acquired from unmanned aerial vehicles (UAVs) in Italy and in the UK in 2021 and 2022 were used to investigate the feasibility of high-throughput phenotyping (HTP) of novel Miscanthus hybrids for yield prediction and crop traits estimation. An intercalibration procedure was performed using simulated data from the PROSAIL model to link vegetation indices (VIs) derived from two different multispectral sensors. The random forest algorithm estimated with good accuracy yield traits (light interception, plant height, green leaf biomass, and standing biomass) using 15 VIs time series, and predicted yield using peak descriptors derived from these VIs time series with root mean square error of 2.3 Mg DM ha−1. The study demonstrates the potential of UAVs’ multispectral images in HTP applications and in yield prediction, providing important information needed to increase sustainable biomass production.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs14122927