Table 3.
Grain yield, head milled rice yield and 2AP content in brown rice of three fragrant rice varieties grown under different water and nitrogen treatments in early season of 2013
| Nitrogen | Variety | Water | Grain yield (t ha−1) | Head milled rice yield (t ha− 1) | 2AP content in brown rice (μg kg− 1 DW) |
|---|---|---|---|---|---|
| N1 | Nongxiang 18 | W1 | 5.83 | 2.99 | 15.49 |
| W2 | 6.64 | 3.45 | 17.12 | ||
| W3 | 6.04 | 3.21 | 13.34 | ||
| Yungengyou14 | W1 | 5.24 | 3.10 | 35.26 | |
| W2 | 5.48 | 2.65 | 36.54 | ||
| W3 | 5.28 | 2.68 | 26.58 | ||
| Basmati | W1 | 5.93 | 2.36 | 15.47 | |
| W2 | 8.44 | 3.47 | 17.12 | ||
| W3 | 7.08 | 3.13 | 12.64 | ||
| Mean | 6.22 b | 3.00 a | 21.06 b | ||
| N2 | Nongxiang 18 | W1 | 5.33 | 2.53 | 14.68 |
| W2 | 6.12 | 3.61 | 16.89 | ||
| W3 | 6.55 | 3.42 | 21.78 | ||
| Yungengyou14 | W1 | 5.74 | 2.25 | 36.65 | |
| W2 | 6.76 | 3.41 | 37.50 | ||
| W3 | 5.21 | 2.60 | 35.35 | ||
| Basmati | W1 | 6.13 | 2.21 | 16.13 | |
| W2 | 8.88 | 3.89 | 14.57 | ||
| W3 | 7.10 | 3.17 | 14.11 | ||
| Mean | 6.42 ab | 3.01 a | 23.07 a | ||
| N3 | Nongxiang 18 | W1 | 5.23 | 2.30 | 14.91 |
| W2 | 6.59 | 2.76 | 19.43 | ||
| W3 | 7.71 | 3.63 | 18.38 | ||
| Yungengyou14 | W1 | 5.06 | 2.21 | 26.69 | |
| W2 | 6.13 | 3.12 | 33.90 | ||
| W3 | 7.45 | 4.47 | 39.26 | ||
| Basmati | W1 | 5.95 | 1.95 | 16.56 | |
| W2 | 8.22 | 3.10 | 15.95 | ||
| W3 | 7.41 | 2.75 | 21.27 | ||
| Mean | 6.64 a | 2.92 a | 22.93 a | ||
| ANOVA | Variety (V) | b | ns | b | |
| Water (W) | b | b | ns | ||
| Nitrogen (N) | a | ns | ns | ||
| V × W | b | b | ns | ||
| V × N | ns | b | ns | ||
| W × N | b | b | b | ||
| V × W × N | ns | b | a |
Within a column means followed by different letters are significantly different according to the LSD (0.05). N1, 0 kg N ha−1; N2, 30 kg N ha−1; N3, 60 kg N ha−1, W1,Well-watered; W2, soil water potential was −15 ± 5 kPa; W3, soil water potential was −25 ± 5 kPa; ns, not significant at the 0.05 probability level; a and b, significant at the 0.05 and 0.01 probability levels, respectively