Table 4.

The sensitivity of normalized two-stage and single date VIs based on ANOVA analysis.

	Means of Normalized Two-Stage VIs				Means on 30 October
	Healthy Rice	Rice Dwarf	Rice Blast	Glume Blight	Healthy Rice	Rice Dwarf	Rice Blast	Glume Blight
NDVI	0.032 **	0.014 **	0.058	0.065	0.078 *	0.018 **	0.08 *	0.102
SAVI	0.047 *	0.046 *	0.036 *	0.079	0.032 *	0.031 *	0.166	0.052 *
TVI	0.032 *	0.02 **	0.04 *	0.012 **	0.037 *	0.104	0.142	0.051 *
RDVI	0.01 *	0.009 **	0.045 *	0.066	0.048 *	0.074 *	0.125	0.091
MSR	0.057	0.095	0.027 **	0.091	0.073	0.125	0.077	0.054 *
SIPI	0.039 *	0.027 *	0.087	0.036 *	0.056 *	0.124	0.145	0.09

Note: * indicates the different significance at 0.95 confidence level. ** indicates the different significance at 0.99 confidence level.