Fig. 2From: Multispectral and X-ray images for characterization of Jatropha curcas L. seed qualityPlot of mean spectrum within each region of interestâROI (nâ=â100 seeds per lot) at 19 wavelengths for ventral (a) and dorsal (b) seed surface of three lots of Jatropha curcas with different vigor levels: low vigorâ=âLot 1, high vigorâ=âLot 2, and medium vigorâ=âLot 3. Vertical bars represent standard deviation (in upper directions)Back to article page