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ETR1, ERS1, ETR2, CTR1, and ERF1 transcript expression in axes isolated from dry dormant (D) and non-dormant (ND) sunflower embryos before imbibition (dry) and from control (H2O) and CN-treated embryos (HCN) imbibed for 24 h at 10 °C on water. CN (1 mM) was applied during the first 3 h of imbibition. Data from real-time RT-PCR (ETR2, CTR1, and ERF1) and semi-quantitative RT-PCR (ETR1 and ERS1) (mean of four biological replicates ±SD) are expressed in arbitrary units.
