| The process of phenology | Bud to bud formation stage | Bud formation and flowering stage | Flowering stage to fruit growth | fruit growth process to ripening | ||||
| Station | Z | PV | Z | PV | Z | PV | Z | PV |
| Sabzevar | −0.6 | 0.2 | 0.6 | 0.7 | 0.4 | 0.6 | −0.7 | 0.2 |
| Torbate Heydarieh | 0.1 | 0.5 | −0.1 | 0.4 | 1.7 | 0.9 | −0.8 | 0.1 |
| Sarakhs | −0.4 | 0.3 | −0.1 | 0.4 | −0.1 | 0.4 | −0.3 | 0.3 |
| Kashmar | −0.6 | 0.2 | −1.0 | 0.1 | 0 | 0.4 | −0.3 | 0.3 |
| Neyshabur | 0 | 0.5 | 1.8 | 0.9 | 0.0 | 0.5 | −1.2 | 0.1 |
| Mashhad | −0.0 | 0.4 | −0.5 | 0.3 | 0.0 | 0.5 | 0.1 | 0.5 |
| Torbate jam | −1.3 | 0.0 | 0.0 | 0.5 | 0.4 | 0.3 | −0.4 | 0.3 |
| Golmakan | −0.4 | 0.3 | 0.3 | 0.6 | 0.3 | 0.6 | −1.4 | 0.0 |
| Ghoochan | −1.9* | 0.0 | 0.4 | 0.6 | 0.0 | 0.5 | −1.9 | 0.0 |
| Gonabad | −1.7 | 0.9 | −2.2* | 0.9 | −0.5 | 0.2 | −0.2 | 0.4 |