Hybrid | The density of plants’ standing, thousand pieces/ha | Yі1, t/ha | b | σd2 |
Ukrainskyi F1 | 50 | 2.41 | 2.36 | 1.68 |
| 55 | 2.55 | 2.69 | 1.83 |
| 60 | 2.70 | 2.74 | 1.98 |
| 65 | 2.81 | 2.97 | 2.30 |
Р63LL06 | 50 | 2.91 | 2.93 | 2.51 |
| 55 | 3.02 | 3.30 | 2.68 |
| 60 | 3.37 | 4.14 | 3.14 |
| 65 | 3.20 | 3.93 | 3.02 |
NK Brio | 50 | 3.32 | 4.34 | 3.15 |
| 55 | 3.61 | 4.50 | 3.53 |
| 60 | 3.93 | 4.84 | 4.63 |
| 65 | 3.67 | 4.34 | 3.95 |
NK Ferti | 50 | 3.00 | 3.29 | 2.7 |
| 55 | 3.18 | 3.59 | 3.01 |
| 60 | 3.57 | 4.33 | 3.75 |
| 65 | 3.34 | 3.77 | 3.20 |