| Significance level p = 0.05 | |||
| DSP2 | Torres | Zidane | |
| Temperature regime | a | b | c |
| DSP2 | Torres | Zidane | |
| Irrigation level | a | ab | ac |
| hot | cold | ||
| (35˚C/22˚C) | (21˚C/16˚C) | ||
| CMS maize hybrid | a | b | |
| dry | wet | ||
| CMS maize hybrid | a | a | |