Table 1.
Descriptive information for the experiments used in the evaluation of the ORYZA2000 and ORYZA (v3).
| Dataseta | WME | NFM | ARE | MVD | |
|---|---|---|---|---|---|
| Location | Ludhiana, Punjab, India | Los Banos, Philippines | Changping, Beijing, China | Los Banos, Philippines | |
| Experimental year | 2008, 2009 | 1992 wet season (WS) & 1993 dry season (DS) | 2003, 2004 | 2011 & 2012 dry seasons (DS) | |
| Seasonal | Average temp. range (°C) | 24.9–33.7 | 21.9–30.4 (DS), 24.0–31.3 (WS) | 20.0–29.9 | 22.7–28.7 in 2011 & 23.4–29.8 in 2012 |
| Total rad (Mj) | 1175.9 | 1291.3 (DS), 901.4 (WS) | 454.0 | 1398.5 in 2011 & 1480.6 in 2012 | |
| Total precip. (mm) | 564.1 | 62.7 (DS), 976.5 (WS) | 596.1 | 217.0 in 2011 & 309.1 in 2012 | |
| Total ET (mm) | 603.5 | 544.7 (DS), 479.5 (WS) | 558.4 | 477.7 in 2011 & 440.4 in 2012 | |
| Cultivar/Genotype | PAU201/Indica | IR72/Indica | Handao297/Japonica | 7 varieties | |
| Seedling age (days) | 23 in 2008, 24 in 2009 | 12 | Direct-seeding | 29 | |
| Planting density (hills m−2, plants hill−1) | 33, 2 | 25, 5 | 260 plants m−2 | 25, 5 | |
| Water management | Fully irrigated, and AWD with three different thresholds | Fully irrigated | Flash flooding as needed | Fully irrigated or rainfed in reproduction stage | |
| N fertilizer management | 120 in three equal splits | 0 to 225 kg N ha−1 with six types of splits | 225 and 300 kg N ha−1 in 3 equal splits | 160 kg N ha−1 in 5 splits (30:30:30:30:40) | |
| Measurements | LAI & organ biomass | LAI & organ biomass | LAI & organ biomass | LAI & organ biomass | |
a
WME – water management experiment; NFM- nitrogen fertilizer management experiment; ARE – aerobic rice experiment; MVD- multiple varieties with drought stress experiment; LAI – leaf area index.