Table 2.
Weather conditions for each drought (Drt) and Heat trial sown during 2008–2009 and 2010–2011 crop seasons in the Yaqui Valley, NW Mexico Weather data by stage is summarized using the average of daily records for maximum air temperature (T max), minimum air temperature (T min), sum of precipitation (Rain) and sum of evapotranspiration (Eto), according to data from the Mexican National Water Commission (CNA)
| Environment | Irrigation (mm) | Year of harvest | Stage | T max (°C) | T min (°C) | Rain (mm) | Eto (mm) |
|---|---|---|---|---|---|---|---|
| Drought | <300 | 2009 | Emergence to anthesis −15d | 26.2 | 9.5 | 2 | 118 |
| Anthesis −15d to anthesis +10d | 26.4 | 7.4 | 0 | 66 | |||
| Anthesis +10d to maturity | 29.3 | 11.0 | 3 | 81 | |||
| 2011 | Emergence to anthesis −15d | 25.9 | 6.3 | 2 | 157 | ||
| Anthesis −15d to anthesis +10d | 27.7 | 7.5 | 0 | 83 | |||
| Anthesis +10d to maturity | 30.7 | 9.5 | 0 | 89 | |||
| Heat | >700 | 2009 | Emergence to anthesis −15d | 29.1 | 10.6 | 3 | 125 |
| Anthesis −15d to anthesis +10d | 31.2 | 11.6 | 0 | 137 | |||
| Anthesis +10d to maturity | 36.6 | 15.8 | 0 | 153 | |||
| 2011 | Emergence to anthesis −15d | 30.6 | 9.6 | 0 | 136 | ||
| Anthesis −15d to anthesis +10d | 32.2 | 12.4 | 0 | 153 | |||
| Anthesis +10d to maturity | 36.1 | 12.3 | 0 | 188 |
The “Irrigation” column indicates the estimated total millimeters of water applied in the whole cycle
d Days