. 2018 Jul 3;9:936. doi: 10.3389/fpls.2018.00936

Table 5.

Simple linear relationship between PNC and the top eight best-performing normalized difference texture indices (R²).

	Pre-heading				Post-heading				Entire season
NDTI	T1	T2	R²	NDTI	T1	T2	R²	NDTI	T1	T2	R²
NDTI1	MEA₈₀₀	MEA₇₂₀	0.61	NDTI9	MEA₈₀₀	DIS₇₂₀	0.61	NDTI17	COR₈₀₀	COR₇₂₀	0.50
NDTI2	MEA₆₈₀	MEA₅₅₀	0.50	NDTI10	COR₈₀₀	COR₇₂₀	0.59	NDTI18	MEA₇₂₀	HOM₇₂₀	0.45
NDTI3	MEA₆₈₀	ENT₅₅₀	0.50	NDTI11	MEA₈₀₀	CON₇₂₀	0.56	NDTI19	ENT₈₀₀	DIS₇₂₀	0.42
NDTI4	ENT₇₂₀	MEA₆₈₀	0.49	NDTI12	MEA₈₀₀	ENT₅₅₀	0.53	NDTI20	SEM₈₀₀	HOM₇₂₀	0.42
NDTI5	ENT₈₀₀	MEA₆₈₀	0.48	NDTI13	MEA₈₀₀	ENT₇₂₀	0.52	NDTI21	MEA₈₀₀	CON₇₂₀	0.41
NDTI6	DIS₇₂₀	MEA₆₈₀	0.47	NDTI14	HOM₇₂₀	HOM₅₅₀	0.51	NDTI22	SEM₇₂₀	MEA₇₂₀	0.41
NDTI7	MEA₆₈₀	HOM₄₉₀	0.47	NDTI15	MEA₈₀₀	VAR₇₂₀	0.50	NDTI23	ENT₇₂₀	DIS₇₂₀	0.41
NDTI8	MEA₆₈₀	SEM₄₉₀	0.47	NDTI16	HOM₇₂₀	HOM₄₉₀	0.46	NDTI24	ENT₈₀₀	CON₇₂₀	0.40

All regressions are statistically significant (p < 0.001). MEA, Mean; VAR, Variance; HOM, Homogeneity; CON, Contrast; DIS, Dissimilarity; ENT, Entropy; SEM, Second Moment; COR, Correlation. The acronyms represent the texture parameter from corresponding band. For example, MEA₈₀₀ represents the mean texture parameter from 800 nm.