An image processing method to measure plant root traits

Although many scientists have emphasized the importance of collecting quantitative data on various root traits relevant to crop performance, such data are lacking except for those on root length. Russell and Sanderson (1967) and Nye and Tinker (1969) discussed the relative importance of traits such as length, surface area, and volume of roots. However, due to the shortage of information, especially on root diameter, surface area, and volume, no definite conclusion has been reached hitherto.