Table 2.
Summary of optimal seed storage conditions for each species of P. davidiana and P. koreana.
| Storage | Species | |||||
|---|---|---|---|---|---|---|
| temperature (°C) | S. xerophila | S. maximowiczii | S. koreensis | |||
| Optimal SWC range (%) | Storage period (months); NGP(%) | Optimal SWC range (%) | Storage period (months); NGP(%) | Optimal SWC range (%) | Storage period (months); NGP(%) | |
| After seed cleaning | 87% | 100% | 97% | |||
| RT | NA | NA | 3-24 | 1; 85-99% | 9-18 | 0.25; 81-91% |
| 4 | NA | NA | 3-6 | 24; 82-91% | NA | NA |
| -18 | NA | NA | 18-24 | 48; 85-95% | 6-18 | 36; 83-94% |
| -80 | 3-9 | 60; 70-80% | 3-24 | 48; 80-100% | 6-18 | 52; 78-89% |
| -196 | 9 | NA; 77% | 3-24 | NA; 91-100% | 6-24 | NA; 83-95% |
Normal germination percentage (NGP); Room Temperature (RT); Seed water content (SWC); Not available (NA)