o:3490 Analysis of genotype by environment interaction for spike traits in winter six-row barley en Abstract: This research was conducted with some spike traits of twenty winter six-row barley genotypes in six environments. The aim of this study was to determine the significance and take advantage useful genotype by environment interacton (GEI) by applying AMMI-1 model. High statistical significance GEI was determined. Wide adaptability genotypes were J-29, J-33, J-9 and J-21 for spike length (SL) as Grand and Ozren for grain number per spike (GNS). The winner genotypes in all environments were Ozren and Grand for SL as Ozren for GNS. All the examined environments can be considered as one megaenvironment, which indicates that unpredictable interactions dominate in this research. barley, spike traits, GE interaction, AMMI model, stability 1552099 10.46793/SBT28.045B 2023-12-08T10:44:13.258Z 44 no 46 Kamenko Bratković Center for small grains and rural development, Kragujevac 46 Kristina Luković Center for small grains and rural development, Kragujevac 46 Vladimir Perišić Center for small grains and rural development, Kragujevac 46 Jelena Maksimović Institute of Soil Science 0000-0001-5217-3972 46 Jasna Savić University of Belgrade, Faculty of Agriculture, Belgrade 46 Vera Đekić Univrsity of Niš, Faculty of Agriculture, Kruševac, Serbia 46 Mirela Matković Stojšin Institute Tamiš, Serbia application/pdf 393491 https://unilib.phaidrabg.rs/o:3490 no yes 1 70 92000004 71A05 “1st INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY” 2023