Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning

Abstract Background High-throughput plant phenotyping (HTPP) methods have the potential to speed up the crop breeding process through the development of cost-effective, rapid and scalable phenotyping methods amenable to automation. Crop disease resistance breeding stands to benefit from successful i...

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Main Authors: Alexander Koc, Firuz Odilbekov, Marwan Alamrani, Tina Henriksson, Aakash Chawade
Format: Article
Language:English
Published: BMC 2022-03-01
Series:Plant Methods
Subjects:
Online Access:https://doi.org/10.1186/s13007-022-00868-0
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author Alexander Koc
Firuz Odilbekov
Marwan Alamrani
Tina Henriksson
Aakash Chawade
author_facet Alexander Koc
Firuz Odilbekov
Marwan Alamrani
Tina Henriksson
Aakash Chawade
author_sort Alexander Koc
collection DOAJ
description Abstract Background High-throughput plant phenotyping (HTPP) methods have the potential to speed up the crop breeding process through the development of cost-effective, rapid and scalable phenotyping methods amenable to automation. Crop disease resistance breeding stands to benefit from successful implementation of HTPP methods, as bypassing the bottleneck posed by traditional visual phenotyping of disease, enables the screening of larger and more diverse populations for novel sources of resistance. The aim of this study was to use HTPP data obtained through proximal phenotyping to predict yellow rust scores in a large winter wheat field trial. Results The results show that 40–42 spectral vegetation indices (SVIs) derived from spectroradiometer data are sufficient to predict yellow rust scores using Random Forest (RF) modelling. The SVIs were selected through RF-based recursive feature elimination (RFE), and the predicted scores in the resulting models had a prediction accuracy of r s  = 0.50–0.61 when measuring the correlation between predicted and observed scores. Some of the most important spectral features for prediction were the Plant Senescence Reflectance Index (PSRI), Photochemical Reflectance Index (PRI), Red-Green Pigment Index (RGI), and Greenness Index (GI). Conclusions The proposed HTPP method of combining SVI data from spectral sensors in RF models, has the potential to be deployed in wheat breeding trials to score yellow rust.
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spelling doaj.art-f1f8b287e558420ebd20f7807180b1632022-12-21T23:50:39ZengBMCPlant Methods1746-48112022-03-0118111110.1186/s13007-022-00868-0Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learningAlexander Koc0Firuz Odilbekov1Marwan Alamrani2Tina Henriksson3Aakash Chawade4Department of Plant Breeding, Swedish University of Agricultural SciencesDepartment of Plant Breeding, Swedish University of Agricultural SciencesDepartment of Plant Breeding, Swedish University of Agricultural SciencesLantmännen LantbrukDepartment of Plant Breeding, Swedish University of Agricultural SciencesAbstract Background High-throughput plant phenotyping (HTPP) methods have the potential to speed up the crop breeding process through the development of cost-effective, rapid and scalable phenotyping methods amenable to automation. Crop disease resistance breeding stands to benefit from successful implementation of HTPP methods, as bypassing the bottleneck posed by traditional visual phenotyping of disease, enables the screening of larger and more diverse populations for novel sources of resistance. The aim of this study was to use HTPP data obtained through proximal phenotyping to predict yellow rust scores in a large winter wheat field trial. Results The results show that 40–42 spectral vegetation indices (SVIs) derived from spectroradiometer data are sufficient to predict yellow rust scores using Random Forest (RF) modelling. The SVIs were selected through RF-based recursive feature elimination (RFE), and the predicted scores in the resulting models had a prediction accuracy of r s  = 0.50–0.61 when measuring the correlation between predicted and observed scores. Some of the most important spectral features for prediction were the Plant Senescence Reflectance Index (PSRI), Photochemical Reflectance Index (PRI), Red-Green Pigment Index (RGI), and Greenness Index (GI). Conclusions The proposed HTPP method of combining SVI data from spectral sensors in RF models, has the potential to be deployed in wheat breeding trials to score yellow rust.https://doi.org/10.1186/s13007-022-00868-0High-throughput phenotypingPlant breedingYellow rustField phenotypingSpectral vegetation indexLow-cost phenotyping
spellingShingle Alexander Koc
Firuz Odilbekov
Marwan Alamrani
Tina Henriksson
Aakash Chawade
Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
Plant Methods
High-throughput phenotyping
Plant breeding
Yellow rust
Field phenotyping
Spectral vegetation index
Low-cost phenotyping
title Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
title_full Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
title_fullStr Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
title_full_unstemmed Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
title_short Predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
title_sort predicting yellow rust in wheat breeding trials by proximal phenotyping and machine learning
topic High-throughput phenotyping
Plant breeding
Yellow rust
Field phenotyping
Spectral vegetation index
Low-cost phenotyping
url https://doi.org/10.1186/s13007-022-00868-0
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AT marwanalamrani predictingyellowrustinwheatbreedingtrialsbyproximalphenotypingandmachinelearning
AT tinahenriksson predictingyellowrustinwheatbreedingtrialsbyproximalphenotypingandmachinelearning
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