Bean Field (IMAGE) American Society of Agronomy Caption Crop scientists breed different varieties to enhance crop diversity and qualities. Credit Photo credit 2015 CSSA photo contest submission. Usage Restrictions Please use with 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.