Fig. 6

(a) Boxplot of the distribution of the difference (in mm) between overall root length value measured manually at the end of the experiment and overall root length value as computed by the system. Red line represents the median value. (b) Boxplots of the distributions of daily growth rates (%) for each of the first 6 days of the experiment. Red line represent the median values. (c) Boxplot of the distribution of average relative growth rate (%/day). Red line represents the median value. (d) Boxplot of the distribution of maximum circumnutation amplitude values computed as maximum distance from the root main component of growth. Red line represents the median value. (e) Boxplot of the distribution of average tip velocity (mm/h). Red line represents the median value