Table 1 Site, soil, and drought characterization of field trials conducted in a managed water environment (trial 1 in Coimbatore) and in TPE (trials 2–3 in Paramakudi) India
Characteristics | Trial 1 2004 | Trial 2 2004 | Trial 3 2009 |
|---|---|---|---|
Elevation above MSL (m) | 427 | 40 | 40 |
Latitude | 11° 59, 43,, N | 9° 54, 59,, N | 9° 33, 03,, N |
Longitude | 77° 34, 57,, E | 70° 34, 57,, E | 70° 34, 57,, E |
Soil texture | Clay | Clay | Clay |
Soil pH | 8.4 | 8.1 | 8.1 |
Timing of start of stress (days after emergence) | 87 | 62 | 84 |
Total duration of stress period (days) | 36 | 26 | 16 |
Rainfall during stress period (mm) | No rainfall | No rainfall | 3 |
Number and duration of continuous rain free days during stress period | 1 (22Â days) | 1 (26Â days) | 1 (16Â days) |
Rainfall during crop period (mm) | 312 | 621 | 486 |
Maximum Temperature (°C) | 31.5 | 32.1 | 40.0 |
Minimum Temperature (°C) | 20.0 | 20.3 | 26.0 |
Average relative humidity (%) | 81.2 | 87.1 | 86.4 |