Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content

Multi-environment trial studies provide an opportunity for the detailed analysis of complex traits. However, conducting trials across a large number of regions can be costly and labor intensive. The Australian National Variety Trials (NVT) provide grain yield and protein content (GPC) data of over 2...

Full description

Bibliographic Details
Main Authors: Vahid Rahimi Eichi, Mamoru Okamoto, Trevor Garnett, Paul Eckermann, Benoit Darrier, Matteo Riboni, Peter Langridge
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/10/5/753
id doaj-bf2234156925442699b0ed743895b59b
record_format Article
spelling doaj-bf2234156925442699b0ed743895b59b2021-04-02T15:41:46ZengMDPI AGAgronomy2073-43952020-05-011075375310.3390/agronomy10050753Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein ContentVahid Rahimi Eichi0Mamoru Okamoto1Trevor Garnett2Paul Eckermann3Benoit Darrier4Matteo Riboni5Peter Langridge6School of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaSchool of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, AustraliaMulti-environment trial studies provide an opportunity for the detailed analysis of complex traits. However, conducting trials across a large number of regions can be costly and labor intensive. The Australian National Variety Trials (NVT) provide grain yield and protein content (GPC) data of over 200 wheat varieties in many and varied environments across the Australian wheat-belt and is representative of similar trials conducted in other countries. Through our analysis of the NVT dataset, we highlight the advantages and limitations in using these data to explore the relationship between grain yield and GPC in the low yielding environments of Australia. Eight environment types (ETs), categorized in a previous study based on the time and intensity of drought stress, were used to analyze the impact of drought on the relationship between grain yield and protein content. The study illustrates the value of comprehensive multi-environment analysis to explore the complex relationship between yield and GPC, and to identify the most appropriate environments to select for a favorable relationship. However, the NVT trial design does not follow the rigor associated with a normal genotype × environment study and this limits the accuracy of the interpretation.https://www.mdpi.com/2073-4395/10/5/753National Variety Trialsgrain protein contentmulti-environmentgrain yieldhigh and low protein wheatenvironment type
collection DOAJ
language English
format Article
sources DOAJ
author Vahid Rahimi Eichi
Mamoru Okamoto
Trevor Garnett
Paul Eckermann
Benoit Darrier
Matteo Riboni
Peter Langridge
spellingShingle Vahid Rahimi Eichi
Mamoru Okamoto
Trevor Garnett
Paul Eckermann
Benoit Darrier
Matteo Riboni
Peter Langridge
Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
Agronomy
National Variety Trials
grain protein content
multi-environment
grain yield
high and low protein wheat
environment type
author_facet Vahid Rahimi Eichi
Mamoru Okamoto
Trevor Garnett
Paul Eckermann
Benoit Darrier
Matteo Riboni
Peter Langridge
author_sort Vahid Rahimi Eichi
title Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
title_short Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
title_full Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
title_fullStr Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
title_full_unstemmed Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content
title_sort strengths and weaknesses of national variety trial data for multi-environment analysis: a case study on grain yield and protein content
publisher MDPI AG
series Agronomy
issn 2073-4395
publishDate 2020-05-01
description Multi-environment trial studies provide an opportunity for the detailed analysis of complex traits. However, conducting trials across a large number of regions can be costly and labor intensive. The Australian National Variety Trials (NVT) provide grain yield and protein content (GPC) data of over 200 wheat varieties in many and varied environments across the Australian wheat-belt and is representative of similar trials conducted in other countries. Through our analysis of the NVT dataset, we highlight the advantages and limitations in using these data to explore the relationship between grain yield and GPC in the low yielding environments of Australia. Eight environment types (ETs), categorized in a previous study based on the time and intensity of drought stress, were used to analyze the impact of drought on the relationship between grain yield and protein content. The study illustrates the value of comprehensive multi-environment analysis to explore the complex relationship between yield and GPC, and to identify the most appropriate environments to select for a favorable relationship. However, the NVT trial design does not follow the rigor associated with a normal genotype × environment study and this limits the accuracy of the interpretation.
topic National Variety Trials
grain protein content
multi-environment
grain yield
high and low protein wheat
environment type
url https://www.mdpi.com/2073-4395/10/5/753
work_keys_str_mv AT vahidrahimieichi strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT mamoruokamoto strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT trevorgarnett strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT pauleckermann strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT benoitdarrier strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT matteoriboni strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
AT peterlangridge strengthsandweaknessesofnationalvarietytrialdataformultienvironmentanalysisacasestudyongrainyieldandproteincontent
_version_ 1721559351477403648