Table 2.
Grain-filling characteristics of different panicle positions in open panicle-type rice (2022).
| Panicle Position | Variety | Spikelets per Panicle | 1000-Grain Weight (g) | Grain Filling (%) | Blighted Grain Rate (%) | The Percentage of Empty Spikelets (%) | Grain Yield (kg/ha) |
|---|---|---|---|---|---|---|---|
| Upper | R766 | 73.29 ± 0.56 b | 23.56 ± 0.32 b | 85.44 ± 0.87 a | 4.04 ± 0.05 e | 9.52 ± 0.02 b | 2319.45 ± 28.12 ab |
| R2928 | 78.87 ± 0.42 a | 28.96 ± 0.12 a | 83.42 ± 0.63 a | 7.30 ± 0.03 c | 9.34 ± 0.03 b | 2841.90 ± 24.43 a | |
| Middle | R766 | 62.88 ± 1.34 cd | 23.29 ± 0.13 b | 84.58 ± 0.28 a | 6.01 ± 0.03 d | 7.07 ± 0.05 c | 2303.25 ± 30.87 ab |
| R2928 | 78.04 ± 0.89 a | 28.25 ± 0.22 a | 77.14 ± 0.35 b | 14.28 ± 0.07 a | 9.07 ± 0.08 b | 1869.30 ± 21.76 c | |
| Lower | R766 | 58.23 ± 0.18 d | 23.17 ± 0.15 b | 83.51 ± 0.67 a | 8.88 ± 0.06 bc | 7.61 ± 0.02 c | 2098.05 ± 28.67 bc |
| R2928 | 65.35 ± 0.25 c | 28.05 ± 0.10 a | 68.33 ± 0.42 c | 10.57 ± 0.03 b | 19.72 ± 0.09 a | 1968.45 ± 21.44 bc |
Lowercase letters show the significance of the differences among all the values in the same column (that is, both between genotypes and among panicle positions), in each column; values with the same letter are not significantly different (significance at p ≤ 0.05).