Table 2.
Correlations of LAI values between LI-3050C and LAI-2000 at different growth stages in experiment 6.
| Growth stage | Data (n) | Regression equation | R2 |
|---|---|---|---|
| Tillering (TI) | 30 | LI = 1.02 × LAI + 0.52 | 0.50*** |
| Stem elongation (SE) | 30 | LI = 1.25 × LAI – 0.06 | 0.86*** |
| Panicle initiation (PI) | 30 | LI = 1.53 × LAI – 0.30 | 0.82*** |
| Booting (BT) | 30 | LI = 1.84 × LAI – 0.65 | 0.85*** |
| Heading (HD) | 30 | LI = 1.76 × LAI – 0.28 | 0.78*** |
| Entire growth stages | 150 | LI = 1.78 × LAI – 0.81 | 0.87*** |
“LI” is the actual LAI value determined by LI-3050C; “LAI” is the estimated LAI value with LAI-2000.
***
F-test statistical significance at 0.001 probability level.