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. 2021 Aug 25;21:398. doi: 10.1186/s12870-021-03161-9

Fig. 6.

Fig. 6

Measurement comparison between manual and RSAtrace3D methods. (a) A scatter plot of the root growth angle (an angle between both end nodes) of each root. The identity line is shown in red. Pearson’s correlation coefficient is shown. (b) RPDs of the root growth angle (“COG tracking” measurements in RSAtrace3D against manual measurements). (c) A scatter plot of root length of each root. The identity line is shown in red. Pearson’s correlation coefficient is shown. (d) RPDs of the root length (“COG tracking” measurements in RSAtrace3D against manual measurements). Three methods “Straight,” “Spline,” and “COG tracking” were compared. For the box plots, its top and bottom mark the first and third quartiles, respectively. Further, the center line represents the median, and the whiskers show the range of observed values within 1.5 times the interquartile range from the hinges