Chlorophyll measurement (IMAGE) University of Basel Caption First author Veronica Caggìa measures the chlorophyll content of maize leaves. These measurements provide an approximation for photosynthesis and plant health. Credit University of Basel, Antoine Baud Usage Restrictions Only to be used in reporting on the related press release 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.