Hans-Peter Piepho is a Professor in the Department of Biostatistics at University of Hohenheim, Germany. His main research interests are related to statistical procedures as needed in plant sciences, crop breeding and cultivar testing. These include genomic prediction, spatial methods for field trials, design of comparative experiments, models for genotype-environment interaction, and network meta-analysis. Moreover, he has various collaborations with researchers in different branches of the agricultural sciences. In most of his research, mixed model procedures form the methodological backbone