On the design of early generation variety trials with correlated data

Authors

Brian R. Cullis, University of WollongongFollow
A B. Smith, Wagga Wagga Agricultural InstituteFollow
N. E. Coombes, Wagga Wagga Agricultural Institute

RIS ID

34165

Publication Details

Cullis, B. R., Smith, A. B.. & Coombes, N. E.. (2006). On the design of early generation variety trials with correlated data. Journal of Agricultural, Biological, and Environmental Statistics, 11 (4), 381-393.

Abstract

This article considers the design of early generation variety trials with a prespecified spatial correlation structure and introduces a new class of partially replicated designs called p-rep designs in which the plots of standard varieties are replaced by additional plots of test lines. We show how efficient p-rep designs can be readily generated using the modified Reactive TABU search algorithm. The expected and realized genetic gain of p-rep and grid plot designs is compared in a simulation study.