Table 1 Grain yield (t ha−1) of 4 rice cultivars grown under 3 N treatments at 5 locations in 2012 and 2013
From: Potential Yield Increase of Hybrid Rice at Five Locations in Southern China
Cultivar | Huaiji | Binyang | Haikou | Changsha | Xingyi | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N1 | N2 | N3 | Mean | N1 | N2 | N3 | Mean | N1 | N2 | N3 | Mean | N1 | N2 | N3 | Mean | N1 | N2 | N3 | Mean | |
2012 | ||||||||||||||||||||
Liangyoupeijiu | 7.17 | 6.86 | 4.15 | 6.06 | 7.79 | 7.88 | 6.75 | 7.47 | 9.68 | 8.85 | 6.93 | 8.49 | 9.33 | 10.48 | 8.67 | 9.49 | 13.18 | 13.20 | 10.93 | 12.44 |
Y-liangyou 1 | 7.67 | 7.19 | 4.41 | 6.42 | 7.13 | 7.25 | 5.66 | 6.68 | 9.48 | 9.15 | 6.61 | 8.41 | 9.84 | 9.88 | 8.81 | 9.51 | 12.91 | 13.68 | 10.58 | 12.39 |
Yuxiangyouzhan | 6.80 | 6.77 | 4.14 | 5.90 | 7.19 | 6.72 | 5.03 | 6.31 | 8.90 | 8.73 | 6.98 | 8.20 | 8.83 | 9.49 | 8.19 | 8.84 | 10.68 | 10.78 | 9.07 | 10.18 |
Huanghuazhan | 6.95 | 7.05 | 4.13 | 6.04 | 7.41 | 7.83 | 5.28 | 6.84 | 9.00 | 8.47 | 6.74 | 8.07 | 9.09 | 9.44 | 8.32 | 8.95 | 10.77 | 11.08 | 9.22 | 10.36 |
Mean | 7.15 | 6.97 | 4.21 | 6.11 e | 7.38 | 7.42 | 5.68 | 6.83 d | 9.26 | 8.80 | 6.81 | 8.29 c | 9.27 | 9.82 | 8.50 | 9.20 b | 11.89 | 12.19 | 9.95 | 11.34 a |
Analysis of variance | ||||||||||||||||||||
genotype (G) | b | b | b | b | b | |||||||||||||||
N treatment (N) | a | b | b | b | b | |||||||||||||||
G × N | ns | ns | a | ns | ns | |||||||||||||||
2013 | ||||||||||||||||||||
Liangyoupeijiu | 7.00 | 6.98 | 5.47 | 6.48 | 8.79 | 8.96 | 6.24 | 8.00 | 7.73 | 7.15 | 5.91 | 6.93 | 10.07 | 10.19 | 8.31 | 9.52 | 13.21 | 13.88 | 11.85 | 12.98 |
Y-liangyou 1 | 7.15 | 7.66 | 5.53 | 6.78 | 8.85 | 9.08 | 5.67 | 7.87 | 7.25 | 7.61 | 6.19 | 7.02 | 9.97 | 10.82 | 7.58 | 9.46 | 14.09 | 13.90 | 12.16 | 13.38 |
Yuxiangyouzhan | 7.46 | 6.58 | 4.91 | 6.32 | 7.97 | 8.05 | 5.24 | 7.09 | 6.51 | 6.86 | 5.16 | 6.18 | 9.17 | 9.46 | 7.21 | 8.61 | 11.95 | 12.13 | 10.56 | 11.55 |
Huanghuazhan | 6.89 | 7.12 | 4.99 | 6.33 | 8.20 | 7.77 | 4.43 | 6.80 | 6.76 | 7.17 | 5.32 | 6.42 | 10.53 | 10.46 | 6.61 | 9.20 | 11.73 | 11.77 | 9.79 | 11.10 |
Mean | 7.13 | 7.09 | 5.23 | 6.48 d | 8.45 | 8.46 | 5.40 | 7.44 c | 7.06 | 7.20 | 5.65 | 6.64 d | 9.94 | 10.23 | 7.43 | 9.20 b | 12.75 | 12.92 | 11.09 | 12.25 a |
Analysis of variance | ||||||||||||||||||||
Genotype (g) | b | b | b | b | b | |||||||||||||||
N treatment (N) | a | b | b | b | b | |||||||||||||||
G × N | b | a | ns | ns | ns | |||||||||||||||