Stability analysis of grain yield and its components of rice (Oryza sativa L.) genotypes

In order to study the stability of yield and some phonological parameter an experiment was carried out with thirteen genotypes ofrice under various environment conditions. The results have shown that there was a significant interaction between genotypes anddifferent environments. A significant difference was observed between thirteen genotypes relative to yield production. Thescattering of lines determined relative to trend of grain yield and regression coefficients so that the genotypes classified to fourgroups in terms of grain yield stability. Based on the stability in yield and qualitative parameter genotype 4 is superior to othersgenotypes so that it can be recommended for commercial cultivation in the Isfahan zone of Iran.