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. 2021 Dec 15;12:778382. doi: 10.3389/fpls.2021.778382

FIGURE 4.

FIGURE 4

The effect of 1-N-naphthylphthalamic acid (NPA) and indole-3-acetic acid (IAA) on primary root growth under increasing light intensities. Primary root length at 14 DAG of seedlings grown in 1/2 MS medium (MS) or transferred to medium containing 10 μM NPA or 1 μM IAA after day 6 (n ≥ 8). All treatments are in LD conditions. Bars represent averages and SE. Statistical significance is indicated with asterisks within the same L condition considering MS as control (one-way ANOVA followed by post hoc Tukey’s honestly significant difference (HSD), p ≤ 0.05).