Genotypes x environment interaction was studied for grain yield, its components and grain quality traits in 10 parents and their 45 F₁s of scented rice (Oryza sativa L.) under four environments created by four different dates of transplanting during wet season 2003. Significant genotype x environment interactions were observed for all the eleven characters having homogenous error variance in environments. Among the linear and nonlinear components of G x E interaction linear component was predominant for most of the characters, suggesting variation in the performance of different genotypes grown over environments could be predicted. Mean squares due to environment (linear) was also found significant for all the characters, indicating differences between environments and their influence on genotypes for expression of these characters. Based on stability parameters and overall mean, genotypes IET 13549 and Pusa Basmati-1 were most stable under different environments, while IET 13846 was suitable for poor environments and the crosses Taroari Basmati x IET 16320, IET 13549 x IET 13846 and Pusa Basmati-1 x IET 13846 were more suitable for favourable environments with respect to these characters.