Resistance to specific virus diseases may be added as heritable characteristics to susceptible crop cultivarsby transformation of the cultivars with specific virus-derived genes. In practice, however, resistance tothe virus varies among transformed plants and transformation often changes cultivar yield and quality characteristicsthat are agronomically important. Therefore, rigorous selection among hundreds of different transformedplant lines is required to identify lines that are both virus resistant and also conform to or exceedstandard characteristics of the original, susceptible cultivar. This paper describes methods we have developedfor rapid selection of virus resistance, yield, and quality characteristics among transformed populationsof plants.