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Figure 1
Prunus avium L. Scheme of storage of dormant seeds (before or after stratification) for 1 or 2 y at − 3 °C (control) or − 196 °C. Stratification at 25 °C/3 °C/25 °C/3 °C was applied, and the germination test was conducted at cyclically alternating temperatures of 3∼ 20 °C, 16 + 8 h a day.