The design and analysis of variety trials using mixtures of composite and individual plot samples

A - Papers appearing in refereed journals

Smith, A. B., Thompson, R., Butler, D. G. and Cullis, B. R. 2011. The design and analysis of variety trials using mixtures of composite and individual plot samples. Journal of the Royal Statistical Society, Series C (Applied Statistics). 60 (3), pp. 437-455.

AuthorsSmith, A. B., Thompson, R., Butler, D. G. and Cullis, B. R.
Abstract

Field trials for evaluating plant varieties are conducted to obtain information on a range of traits including grain yield and grain quality. Some grain quality traits are costly to measure so it is not possible to test all plots individually. It has therefore become common practice to test a single composite sample for each variety in the trial but this precludes the use of an efficient statistical analysis. We propose an approach in which a proportion of varieties is tested by using individual replicate samples. The remaining varieties may either be tested as composite samples or with reduced replication. This allows application of efficient mixed model analyses for both the inexpensive traits (using data from the complete set of individual replicate plots) and expensive traits (using data from a subset of the plots or a mixture of composite and individual plot samples).

KeywordsStatistics & Probability
Year of Publication2011
JournalJournal of the Royal Statistical Society, Series C (Applied Statistics)
Journal citation60 (3), pp. 437-455
Digital Object Identifier (DOI)doi:10.1111/j.1467-9876.2010.00755.x
Open accessPublished as non-open access
FunderGrains Research and Development Corporation of Australia
Funder project or codeCentre for Mathematical and Computational Biology (MCB)
Application of statistical methods to predictive biology
Output statusPublished
Publication dates
Online18 Mar 2011
Publication process dates
AcceptedOct 2010
Copyright licensePublisher copyright
ISSN0035-9254
PublisherWiley-Blackwell

Permalink - https://repository.rothamsted.ac.uk/item/8q87y/the-design-and-analysis-of-variety-trials-using-mixtures-of-composite-and-individual-plot-samples

Restricted files

Publisher's version

Under embargo indefinitely

17 total views
2 total downloads
0 views this month
0 downloads this month