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Staining of quinoa sprout from seeds stored for 12 months. (A) Staining with TFT, indicating metabolic activity, (B) NBT, indicating superoxide anion accumulation, and (C) DAB, showing hydrogen peroxide accumulation, of F16 seedlings stored at 4 and 37°C and Duquesa seeds stored at 4 and 37°C, from left to right, respectively. The black bar indicates scale of 5 mm.
