Table 1. Yield and yield components in Koshihikari, Koshihikari NIL-GPS, Takanari, and Takanari NIL-GPS.
| Cultivar or NIL | Yield (g m−2) | Spikelets (no. m−2) | Ripening (%) | 1000-grain wt. (g) |
|---|---|---|---|---|
| Koshihikari | 560 | 29,968 | 84.2 | 21.7 |
| Koshihikari NIL-GPS | 559 | 28,029 | 86.1 | 22.8 |
| (n = 3) | n.s. | n.s. | n.s. | ** |
| Takanari | 1,051 | 59,217 | 83.1 | 21.0 |
| Takanari NIL-GPS | 1,002 | 60,797 | 78.4 | 20.5 |
| (n = 5) | * | n.s. | * | ** |
N fertilization was 6 g N m−2 for Koshihikari and its NIL-GPS and 18 g N m−2 for Takanari and its NIL-GPS.
**P < 0.01;
*P < 0.05; n.s., not significant (Student's t-test).
Comparisons were made between each cultivar and the corresponding NIL-GPS.