Biodiversity experiment with barley (IMAGE) University of Helsinki Caption Barley was grown in test plots either on its own or with one, two, four or eight undersown species. Credit Anna-Liisa Laine Usage Restrictions Credit to: Anna-Liisa Laine License Original 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.