Vol: 35 Page: 207

Authors:
Andrzej Zieliński
Paweł Jankowski
Wiesław Mądry

Title:
 GGE biplot as a tool for graphical analysis of data from multi-environment genotype trials

Language: Polish

Keywords:
singular values
principal components
genotype-environment interaction
GGE effects
biplot
winter wheat

Summary:
GGE biplot is a graphical presentation of genotypes and environments as points on a plane in such a way that through suitable geometric interpretation of scalar products many relations between GGE effects could be discovered (GGE effects are main genotype effects combined with genotype-environment interaction effects). The paper presents theoretical background (singular value decomposition) and ways of interpretation of GGE biplot. An example of data from multi-environment genotype trials serves as illustration of interpretation possibilities of GGE biplot.