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The effect of ETR1 on germination after far-red light treatment is reversed by red light. Seeds were treated with white light for 3 h, followed by a series of 5 min pulses of red (R) and far-red (FR) light as shown. The percent of seeds that germinated was determined 7 days later. The average ± SD from at least three biological replicates is plotted. ND denotes no germination detected.
