A high quality low-cost digital microscope minirhizotron system
An easily reproducible system is presented for minirhizotron image acquisition based on a digital microscope and entirely built with low-cost components. The system weighs 2.28kg, is connected to a portable computer through USB, and allows collection and storage of high-quality digital images without other components or power sources. Settings at 25 magnification provide pixel sizes of 25 and 12?m respectively with a medium pixel density microscope (640480pixel), and a high pixel density microscope (12801024pixel). This kind of system coupled with recent developments of robotics and automatic image analysis for minirhizotron frames allows to envisage fast, low-labour and low-cost root investigation methods with a high degree of automation.
imaging equipment root research root methods