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

Abstract

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