Additive main effects and multiplicative interactions (AMMI) model anal-yses were performed to assess and quantify the magnitude of genotype by envi-ronment interaction (GEI) for number of days to heading (DH) and grain yield (GY/P) stability of sixteen promising bread wheat (Triticum aestivum L.) geno-types. Field experiments under recommended (N) and late (L) sowing date in newly reclaimed soil were conducted in the Agricultural Research Station at Ar-ab-Elawamer, Assiut, Egypt for three consecutive seasons (2016/2017, 2017/2018 and 2018/2019). The combined ANOVA showed highly significant differences among genotypes and among environments for both traits, while GEI was highly significant for DH and not significant for GY/P. Results of AMMI analysis indicated that the first three AMMI (PC1, PC2 and PC3) were highly significant for DH and AMMI1 was only significant in case of GY/P. In addition, the environments showed high contributions to the total sum of squares (TSS) and explained 84.7 and 85.3% for days to heading and grain yield/plot, respec-tively. While, the genotypes captured 10.4 and 6.8% of the TSS for the same traits, respectively. Although that the GEI showed low contribution to the total SS, but its magnitude (7.9%) was larger than that for genotypes in case of GY/P. The AMMI stability value discriminated genotypes G3, G7, G9, G12 and G14. G3 were the most promising stable and adapted genotypes according to grain yield performance over environments.