| Cultivar | P1 (˚C day) | P2 (day) | P5 (˚Cday) | G2 (# grains ear−1) | G3 (mg day−1) | PHINT (˚C day) |
| BARI Hybrid Maize-7 | 225 | 0.100 | 956 | 760 | 8.20 | 47 |
| BARI Hybrid Maize-9 | 225 | 0.100 | 956 | 765 | 8.40 | 47 |
| PIONEER | 226 | 0.100 | 965 | 768 | 8.50 | 47 |
| NK-40 | 226 | 0.100 | 964 | 765 | 8.50 | 47 |