| ABA | Abscisic acid |
| ER | Endosperm rupture |
| GA | Gibberellin |
| GPAW | Gas-plasma-activated water |
| H2O2 | Hydrogen peroxide |
| LFR | Low fluence response |
| ·NO | Nitric oxide |
| NO3− | Nitrate |
| OH· | Hydroxyl radical |
| PHYA/B | Phytochrome A/B |
| TR | Testa rupture |
| VLFR | Very low fluence response |