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. 2018 Apr 26;9:566. doi: 10.3389/fpls.2018.00566

FIGURE 1.

FIGURE 1

Cultivar-dependent adventitious rooting in carnation stem cuttings. (A) Time series of adventitious rooting in carnation stem cuttings grown in vitro. A representative sample in each cultivar was imaged between 15 and 29 days after planting. (B) The average lengths ± standard deviations of scanned root systems between 13 and 29 days are shown for the studied cultivars. Letters indicate significant differences (P < 0.05) between data points (n = 20). (C) Light micrographs from cross-sections of stem cutting basal regions at 0 and 54 h after planting. Black arrowhead indicates periclinal cell divisions in the cambium (ca). cc, cell clusters; pl: phloem; xl, xylem.