Table 1 Phenological development of XY335 and ZD958 at different shading levels (CK = natural light; S-15% = 85% of natural light; S-30% = 70% of natural light; S-50% = 50% of natural light) and densities (D1 = 7.5 × 104 plants ha−1; D2 = 10.5 × 104 plants ha−1; and D3 = 12 × 104 plants ha−1) at Qitai and Yinchuan in 2016 and 2017.
From: Improving maize grain yield by matching maize growth and solar radiation
Site | Cultivar | Planting density | Shading level | Qitai | Yinchuan | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Year | Sowing Date | Silking Date | Physiological maturity Date | Growth duration (d) | Sowing Date | Silking Date | Physiological maturity Date | Growth duration (d) | |||
2016 | XY335 | D1 | CK | 4/18 | 7/11 | 9/23 | 158 | — | — | — | — |
S-15% | 4/18 | 7/11 | 9/23 | 158 | — | — | — | — | |||
S-30% | 4/18 | 7/11 | 9/23 | 158 | — | — | — | — | |||
S-50% | 4/18 | 7/11 | 9/20 | 155 | — | — | — | — | |||
D2 | CK | 4/18 | 7/12 | 9/25 | 160 | — | — | — | — | ||
S-15% | 4/18 | 7/12 | 9/25 | 160 | — | — | — | — | |||
S-30% | 4/18 | 7/12 | 9/23 | 158 | — | — | — | — | |||
S-50% | 4/18 | 7/12 | 9/20 | 155 | — | — | — | — | |||
D3 | CK | 4/18 | 7/12 | 9/25 | 160 | — | — | — | — | ||
S-15% | 4/18 | 7/12 | 9/25 | 160 | — | — | — | — | |||
S-30% | 4/18 | 7/12 | 9/23 | 158 | — | — | — | — | |||
S-50% | 4/18 | 7/12 | 9/19 | 154 | — | — | — | — | |||
ZD958 | D1 | CK | 4/18 | 7/14 | 9/28 | 163 | 4/21 | 7/4 | 9/24 | 156 | |
S-15% | 4/18 | 7/14 | 9/28 | 163 | 4/21 | 7/4 | 9/23 | 155 | |||
S-30% | 4/18 | 7/14 | 9/26 | 161 | 4/21 | 7/4 | 9/23 | 155 | |||
S-50% | 4/18 | 7/14 | 9/23 | 158 | 4/21 | 7/4 | 9/20 | 152 | |||
D2 | CK | 4/18 | 7/16 | 9/28 | 163 | 4/21 | 7/5 | 9/24 | 156 | ||
S-15% | 4/18 | 7/16 | 9/27 | 162 | 4/21 | 7/5 | 9/23 | 155 | |||
S-30% | 4/18 | 7/16 | 9/24 | 159 | 4/21 | 7/5 | 9/23 | 155 | |||
S-50% | 4/18 | 7/16 | 9/21 | 156 | 4/21 | 7/5 | 9/20 | 152 | |||
D3 | CK | 4/18 | 7/16 | 9/28 | 163 | 4/21 | 7/5 | 9/24 | 156 | ||
S-15% | 4/18 | 7/16 | 9/25 | 160 | 4/21 | 7/5 | 9/22 | 154 | |||
S-30% | 4/18 | 7/16 | 9/23 | 158 | 4/21 | 7/5 | 9/18 | 150 | |||
S-50% | 4/18 | 7/16 | 9/19 | 154 | 4/21 | 7/5 | 9/16 | 148 | |||
2017 | XY335 | D1 | CK | 4.21 | 7/9 | 9/26 | 158 | 4/20 | 7/4 | 9/20 | 152 |
S-15% | 4.21 | 7/9 | 9/26 | 158 | 4/20 | 7/4 | 9/20 | 152 | |||
S-30% | 4.21 | 7/9 | 9/26 | 158 | 4/20 | 7/4 | 9/18 | 150 | |||
S-50% | 4.21 | 7/9 | 9/23 | 155 | 4/20 | 7/4 | 9/14 | 146 | |||
D2 | CK | 4.21 | 7/10 | 9/28 | 160 | 4/20 | 7/6 | 9/20 | 152 | ||
S-15% | 4.21 | 7/10 | 9/28 | 160 | 4/20 | 7/6 | 9/20 | 152 | |||
S-30% | 4.21 | 7/10 | 9/24 | 156 | 4/20 | 7/6 | 9/16 | 148 | |||
S-50% | 4.21 | 7/10 | 9/21 | 153 | 4/20 | 7/6 | 9/14 | 146 | |||
D3 | CK | 4.21 | 7/11 | 9/28 | 160 | 4/20 | 7/7 | 9/23 | 155 | ||
S-15% | 4.21 | 7/11 | 9/28 | 160 | 4/20 | 7/7 | 9/20 | 152 | |||
S-30% | 4.21 | 7/11 | 9/25 | 157 | 4/20 | 7/7 | 9/18 | 150 | |||
S-50% | 4.21 | 7/11 | 9/20 | 152 | 4/20 | 7/7 | 9/16 | 148 | |||
ZD958 | D1 | CK | 4.21 | 7/9 | 9/29 | 161 | 4/20 | 7/4 | 9/24 | 156 | |
S-15% | 4.21 | 7/9 | 9/29 | 161 | 4/20 | 7/4 | 9/22 | 154 | |||
S-30% | 4.21 | 7/9 | 9/25 | 157 | 4/20 | 7/4 | 9/23 | 155 | |||
S-50% | 4.21 | 7/9 | 9/22 | 154 | 4/20 | 7/4 | 9/18 | 150 | |||
D2 | CK | 4.21 | 7/10 | 9/29 | 161 | 4/20 | 7/4 | 9/24 | 156 | ||
S-15% | 4.21 | 7/10 | 9/30 | 162 | 4/20 | 7/4 | 9/22 | 154 | |||
S-30% | 4.21 | 7/10 | 9/25 | 157 | 4/20 | 7/4 | 9/22 | 154 | |||
S-50% | 4.21 | 7/10 | 9/21 | 153 | 4/20 | 7/4 | 9/18 | 150 | |||
D3 | CK | 4.21 | 7/13 | 9/30 | 162 | 4/20 | 7/6 | 9/25 | 157 | ||
S-15% | 4.21 | 7/13 | 9/30 | 162 | 4/20 | 7/6 | 9/23 | 155 | |||
S-30% | 4.21 | 7/13 | 9/25 | 157 | 4/20 | 7/6 | 9/20 | 152 | |||
S-50% | 4.21 | 7/13 | 9/21 | 153 | 4/20 | 7/6 | 9/18 | 150 | |||
