Table 4 Floret growth and development of the four varieties under different nitrogen rate.
Year | Treatment | Varieties | Floret primordia | Silking ratio (%) | Fertilized ratio (%) | Abortion ratio (%) |
|---|---|---|---|---|---|---|
2018 | HN | ND19 | 741.47 ± 10.08b | 90.84 ± 0.66a | 82.43 ± 0.38a | 12.28 ± 0.16a |
ND29 | 771.41 ± 22.84a | 90.09 ± 0.43a | 81.94 ± 0.66a | 10.88 ± 0.36b | ||
ND17 | 782.58 ± 13.54a | 87.49 ± 0.86b | 77.88 ± 1.65b | 11.94 ± 0.35a | ||
N19022 | 785.09 ± 3.13a | 87.44 ± 0.67b | 79.82 ± 0.95b | 12.27 ± 0.47a | ||
LN | ND19 | 710.67 ± 7.08b | 88.42 ± 0.75a | 84.90 ± 1.64a | 18.96 ± 0.53c | |
ND29 | 739.96 ± 12.01a | 88.57 ± 1.07a | 82.20 ± 0.58a | 20.39 ± 0.46b | ||
ND17 | 701.75 ± 9.27b | 86.40 ± 0.48b | 80.69 ± 0.68b | 22.94 ± 1.42a | ||
N19022 | 739.88 ± 8.75a | 85.98 ± 0.94b | 79.58 ± 1.95b | 23.89 ± 0.94a | ||
2019 | HN | ND19 | 780.46 ± 9.02a | 90.71 ± 0.95a | 82.08 ± 1.76a | 12.62 ± 0.36a |
ND29 | 797.49 ± 7.44a | 89.02 ± 1.04a | 82.79 ± 1.04a | 12.88 ± 0.36a | ||
ND17 | 775.84 ± 4.41b | 87.90 ± 0.31b | 80.04 ± 0.56b | 11.57 ± 1.42b | ||
N19022 | 760.41 ± 9.58b | 87.80 ± 1.01b | 80.40 ± 1.39b | 11.86 ± 0.26a | ||
LN | ND19 | 763.12 ± 10.01a | 88.51 ± 0.49a | 83.61 ± 0.71b | 19.44 ± 0.84b | |
ND29 | 772.89 ± 19.71a | 90.18 ± 0.71a | 84.77 ± 1.13a | 20.81 ± 0.72b | ||
ND17 | 713.39 ± 7.13b | 87.45 ± 0.86b | 80.81 ± 0.72d | 23.87 ± 0.72a | ||
N19022 | 721.72 ± 11.51b | 85.38 ± 0.69c | 82.46 ± 0.39c | 23.61 ± 2.09a | ||
F-value | Y | 18.67** | 0.89* | 14.41** | 4.24* | |
N | 161.89** | 32.84** | 9.71** | 1477.59** | ||
V | 12.99** | 43.99** | 20.44** | 19.45** | ||
Y × V | 3.02 | 2.07 | 0.51 | 0.27 | ||
Y × V | 20.72** | 0.7 | 5.81** | 0.91 | ||
N × V | 10.97** | 4.83** | 2.87* | 21.04** | ||
Y × N × V | 0.19 | 2.79* | 1.3 | 1.59 |
