Table 5.
Comparative analysis of the normalized greenness intensity (NGI) in rice canopy under nitrogen (N) fertilizer and density treatments
| Treatments | TS | JS | HS | FS | LFS | MS |
|---|---|---|---|---|---|---|
| N0 | 0.492 ± 0.008ab | 0.475 ± 0.004a | 0.514 ± 0.003a | 0.497 ± 0.003a | 0.472 ± 0.002a | 0.415 ± 0.002a |
| N1 | 0.486 ± 0.010b | 0.480 ± 0.004a | 0.514 ± 0.010a | 0.494 ± 0.001a | 0.459 ± 0.008b | 0.416 ± 0.001a |
| N2 | 0.477 ± 0.015ab | 0.479 ± 0.004a | 0.508 ± 0.001a | 0.491 ± 0.005a | 0.454 ± 0.003b | 0.414 ± 0.001a |
| N3 | 0.498 ± 0.005a | 0.475 ± 0.002a | 0.508 ± 0.001a | 0.493 ± 0.004a | 0.452 ± 0.002b | 0.416 ± 0.002a |
| D4 | 0.479 ± 0.010A | 0.478 ± 0.005A | 0.509 ± 0.004A | 0.496 ± 0.003A | 0.462 ± 0.008A | 0.417 ± 0.002A |
| D3 | 0.481 ± 0.019A | 0.480 ± 0.004A | 0.510 ± 0.004A | 0.492 ± 0.002A | 0.458 ± 0.010A | 0.417 ± 0.002A |
| D2 | 0.494 ± 0.008A | 0.479 ± 0.003A | 0.512 ± 0.002A | 0.496 ± 0.005A | 0.456 ± 0.012A | 0.417 ± 0.001A |
| D1 | 0.484 ± 0.008A | 0.474 ± 0.000A | 0.515 ± 0.010A | 0.492 ± 0.006A | 0.458 ± 0.009A | 0.415 ± 0.001A |
TS, JS, HS, FS, LFS and MS indicate the tillering, jointing, heading, filling, late filling and maturity stages of rice, respectively. Different lowercase letters indicate significant differences among nitrogen (N) fertilizer treatments (p < 0.05); different uppercase letters indicate significant differences among planting density treatments (p < 0.05)