Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat

Developing disease models to simulate and analyse yield losses for various pathogens is a challenge for the crop modelling community. In this study, we developed and tested a simple method to simulate septoria tritici blotch (STB) in the Cropsim-CERES Wheat model studying the impacts of damage on wh...

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Autores principales: Röll, Georg, Batchelor, William, Castro, Ana Carolina, Simón, María Rosa, Graeff-Hönninger, Simone
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Agrarias
Wheat
Disease
Yield
Septoria tritici blotch
Leaf area index
Crop modelling
Decision support system for agrotechnology transfer (DSSAT)
Cropsim-CERES Wheat
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125384
https://www.mdpi.com/2073-4395/9/3/120
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125384
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Wheat
Disease
Yield
Septoria tritici blotch
Leaf area index
Crop modelling
Decision support system for agrotechnology transfer (DSSAT)
Cropsim-CERES Wheat
spellingShingle Ciencias Agrarias
Wheat
Disease
Yield
Septoria tritici blotch
Leaf area index
Crop modelling
Decision support system for agrotechnology transfer (DSSAT)
Cropsim-CERES Wheat
Röll, Georg
Batchelor, William
Castro, Ana Carolina
Simón, María Rosa
Graeff-Hönninger, Simone
Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
topic_facet Ciencias Agrarias
Wheat
Disease
Yield
Septoria tritici blotch
Leaf area index
Crop modelling
Decision support system for agrotechnology transfer (DSSAT)
Cropsim-CERES Wheat
description Developing disease models to simulate and analyse yield losses for various pathogens is a challenge for the crop modelling community. In this study, we developed and tested a simple method to simulate septoria tritici blotch (STB) in the Cropsim-CERES Wheat model studying the impacts of damage on wheat (Triticum aestivum L.) yield. A model extension was developed by adding a pest damage module to the existing wheat model. The module simulates the impact of daily damage on photosynthesis and leaf area index. The approach was tested on a two-year dataset from Argentina with different wheat cultivars. The accuracy of the simulated yield and leaf area index (LAI) was improved to a great extent. The Root mean squared error (RMSE) values for yield (1144 kg ha⁻¹) and LAI (1.19 m2 m⁻²) were reduced by half (499 kg ha⁻¹) for yield and LAI (0.69 m² m⁻²). In addition, a sensitivity analysis of different disease progress curves on leaf area index and yield was performed using a dataset from Germany. The sensitivity analysis demonstrated the ability of the model to reduce yield accurately in an exponential relationship with increasing infection levels (0–70%). The extended model is suitable for site specific simulations, coupled with for example, available remote sensing data on STB infection.
format Articulo
Articulo
author Röll, Georg
Batchelor, William
Castro, Ana Carolina
Simón, María Rosa
Graeff-Hönninger, Simone
author_facet Röll, Georg
Batchelor, William
Castro, Ana Carolina
Simón, María Rosa
Graeff-Hönninger, Simone
author_sort Röll, Georg
title Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
title_short Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
title_full Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
title_fullStr Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
title_full_unstemmed Development and Evaluation of a Leaf Disease Damage Extension in Cropsim-CERES Wheat
title_sort development and evaluation of a leaf disease damage extension in cropsim-ceres wheat
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/125384
https://www.mdpi.com/2073-4395/9/3/120
work_keys_str_mv AT rollgeorg developmentandevaluationofaleafdiseasedamageextensionincropsimcereswheat
AT batchelorwilliam developmentandevaluationofaleafdiseasedamageextensionincropsimcereswheat
AT castroanacarolina developmentandevaluationofaleafdiseasedamageextensionincropsimcereswheat
AT simonmariarosa developmentandevaluationofaleafdiseasedamageextensionincropsimcereswheat
AT graeffhonningersimone developmentandevaluationofaleafdiseasedamageextensionincropsimcereswheat
bdutipo_str Repositorios
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