Measurements include: NDVI, NDRE vegetation indices, LAI and canopy chlorophyll content estimation, incident and canopy reflected PAR, canopy and air temperature, relative humidity and atmospheric pressure. Sensor data can be utilized for screening new plant varieties or for studying the plant physiological behavior. Because the system can be vehicle mounted, the system can rapidly collect plant canopy information over large agricultural landscape or research study areas. Sensor measurements are geospatially tagged and stored using a GeoSCOUT X data logger.