The researchers studied different types of sorghum to see which ones were the most stable and had the highest grain yield in Ethiopia. They tested 49 sorghum genotypes at five locations and found significant differences in yield between environments and genotypes. The highest grain yield was from ESH-1, while the lowest was from K5136. They used different stability models to measure genotype stability and found that yield was correlated with certain stability parameters. However, there were inconsistencies in the stability parameters used, making it difficult to select the most stable genotypes. The researchers recommend repeating the experiment for at least one more year in different dry lowland areas of Ethiopia.