Table 4. Effects of different plant growth regulators on maize grain yield (t ha-1) and yield components from 2011 to 2012.
Year | Treatment | Ear length(cm) | Ear diameter(cm) | Kernel number per ear | Thousand kernel weight(g) | Yield(t ha-1) |
---|---|---|---|---|---|---|
2011 | Control | 19.40±0.99ab | 5.24±0.09b | 590±20.00a | 315±10.00bc | 12.59±0.58b |
CCC | 17.86±0.79b | 5.16±0.16b | 550±15.00b | 300±14.00c | 11.55±0.92b | |
DCPTA | 19.88±0.85a | 5.62±0.21a | 622±22.00a | 321±3.50ab | 13.67±0.78a | |
PCH | 19.50±1.29ab | 5.40±0.09ab | 600±25.00a | 337±7.00a | 13.79±0.78a | |
2012 | Control | 19.62±0.92a | 5.32±0.19b | 650±9.00a | 290±9.00b | 11.83±0.83b |
CCC | 17.80±0.76b | 5.18±0.10b | 613±22.00b | 271±7.00c | 10.75±0.74b | |
DCPTA | 19.82±1.07a | 5.72±0.21a | 665±19.00a | 301±10.00b | 11.92±1.01ab | |
PCH | 19.73±0.43a | 5.48±0.17ab | 658±27.00a | 319±8.50a | 12.62±0.61a |
Values are mean ± SD. Values with the same letters in a column are not significantly different at P< 0.05 (LSD test) in same year