[1]Department of Mathematical and Statistical Methods;
Poznan University of Life Sciences;
Wojska Polskiego 28;
Poznan 60-637 Poland;
[2]Poznan University of Life Sciences;
Department of Agronomy;
Dojazd 11;
Poznan 60-632;
Poland;
[3]Wroctaw University of Environmental and Life Sciences;
Department of Genetics;
Plant Breeding and Seed Production Grunwaldzki 24A;
Wroctaw 53-363;
Poland;
AMMI model; biplot; Zea mays L.; dry matter of plant yield; stability;