Next Article in Journal
Mortierella elongata Increases Plant Biomass among Non-Leguminous Crop Species
Previous Article in Journal
Evaluation of an Adapted Greenhouse Cooling System with Pre-Chamber and Inflatable Air Ducts for Semi-Arid Regions in Warm Conditions
Previous Article in Special Issue
Envirotypes Based on Seed Yield Limiting Factors Allow to Tackle G × E Interactions
Open AccessArticle

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

1
School of Agriculture Food and Wine, University of Adelaide, Glen Osmond 5064, Australia
2
ARC Industrial Transformation Research Hub for Wheat in a Hot and Dry Climate, Waite Research Institute, University of Adelaide, Glen Osmond 5064, Australia
3
Australian Plant Phenomics Facility, The University of Adelaide, PMB1, Glen Osmond, South Australia 5064, Australia
4
Wheat Initiative, Julius-Kühn-Institute, 14195 Berlin, Germany
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(5), 753; https://doi.org/10.3390/agronomy10050753
Received: 13 March 2020 / Revised: 19 May 2020 / Accepted: 20 May 2020 / Published: 24 May 2020
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. View Full-Text
Keywords: National Variety Trials; grain protein content; multi-environment; grain yield; high and low protein wheat; environment type; grain protein deviation National Variety Trials; grain protein content; multi-environment; grain yield; high and low protein wheat; environment type; grain protein deviation
Show Figures

Figure 1

MDPI and ACS Style

Eichi, V.R.; Okamoto, M.; Garnett, T.; Eckermann, P.; Darrier, B.; Riboni, M.; Langridge, P. Strengths and Weaknesses of National Variety Trial Data for Multi-Environment Analysis: A Case Study on Grain Yield and Protein Content. Agronomy 2020, 10, 753.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop