Evaluation location: Minnesota, United States
Study Name: Resistance to Potato Leaf Roll Virus Experiment Type: Field FIELD Study Year: 1984 Year started: //1984 Year ended: 12/12/1984. Infected green peach aphids were scattered over seedlings grown in the greenhouse. Plants were transplanted to the field where visual observation and two ELISA assays about a week apart were made. A third ELISA test was made on the most resistant entries.