Field evaluation (IMAGE) American Society of Agronomy Caption Phil Miklas and Juan Osorno evaluate slow-darkening pinto beans in the field at Othello, WA. Credit Juan Osorno Usage Restrictions For use with this story only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.