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. 2020 Oct 27;7:371. doi: 10.1038/s41597-020-00706-9

Fig. 4.

Fig. 4

Example of unstained and stained images of medium (40–50 gm) potato tubers. Rows and columns indicate respective tissue zones (inner and outer core) and different staining agents. The first column specifies the unstained images, whereas, the subsequent columns are for stained images of safranin-o, toluidine blue-o, and lugol’s iodine. The images are from (a) Bud Region (Z1), (b) Middle Region (Z2), and (c) Stem Region (Z3). Note: All the images are with the scale at top-left corner on unstained image.