Twelve Working Seminar on "Statistical Methods in Variety Testing"

From July 4 to July 7, 2022, the 12th Working Seminar on "Statistical Methods in Variety Testing" was held at the COBORU Headquarters in Słupia Wielka.
Participants from ten countries (Australia, Czech Republic, Netherlands, Ireland, Germany, Poland, United States, Switzerland, Sweden, United Kingdom) took part in the seminar. See Below list of presentations with links to the files.

• “Shall we use the FR test or the simple bootstrap test?” J. Forkman, W. A. Malik, S. Hadasch, H.P. Piepho
• "Effects of data reduction on trend estimation from German registration trials" J. Hartung, F. Laidig, H.P. Piepho
• "Quantifying and mitigating shading effects in winter barley trials" I. M. Nevison, T. M. Vernon, A. M. I. Roberts
• "Neighbour balance and evenness of distribution designs for use in field variety trials" E. R. Williams, H.P. Piepho
• "Valid restricted randomization for small experiments" R. A. Bailey
• "Designing experiments for large multi-environment genetic studies: multi-environmental designs (MED) optimization for sparse testing" L. Gutierrez
• "Protein use efficiency and stability of baking quality in winter wheat" F. Laidig, A. Hüsken, D. Rentel, H.P. Piepho.
• "The comparison of three approaches (ANOVA, ANCOVA and PIP) to the analysis of oilseed rape trials" B. Zawieja, C. Flachenecker, W. Pilarczyk, T. Mikulski
• "Nested row-column design - direct approach to ANOVA" T. Caliński, A. Łacka, I. Siatkowski
• "A comparison of different within-trial analysis approaches to spatial variation" T. M. Vernon, A. M. I. Roberts, I. M. Nevison
• "Two-dimensional P-spline smoothing for spatial analysis of plant breeding trials" - H.P. Piepho, M. Boer, E. R. Williams
• "Bayesian modelling of variance components makes analysis of resolvable incomplete block designs more efficient", M. Studnicki, H. P. Piepho
• "Projecting Results of Zoned Multienvironment Trials in New Location Using Environmental Covariates with Random Coefficient Models" H. Buntaran, J. Forkman, H.P. Piepho
• "Variety Effects: Fixed or Random? The Value of Random vs Fixed Effects for Regional Recommendations" T. M. Vernon, A. M. I. Roberts, I. M. Nevison
• "Ways of environmental characterization and opportunities for modelling genotype by environment interactions" F. van Eeuwijk, D. Bustos-Korts, J. Ramakers, S. Chapman, A. J. de la Vega, M. Boer
• "Mixed-model analysis of European VCU trials for maize and wheat" - J. Ramakers, W. Malik, H. Buntaran, D. Bustos-Korts, H.P. Piepho, F. van Eeuwijk