Table 2. Correlation coefficients between fractional Intercepted PAR (fIPAR) and Chlorophyll Content Index (CCI) and vegetation indices (VI) obtained with a consumer-grade camera (see Table 1 for details on the vegetation indices studied) at each phenological stage (n = 12, except at initial grain filling where n = 10).

		Anthesis		Initial grain filling		Final grain filling
Bands	VI	fIPAR	CCI	fIPAR	CCI	fIPAR	CCI
NIR / R	NDVI	0.82**	0.74**	0.73*	0.66*	0.78**	0.84**
	SR	0.82**	0.75**	0.69*	0.67*	0.77**	0.83**
NIR / G	GNDVI	0.83**	0.73**	0.70*	0.68*	0.83**	0.83**
	GSR	0.83**	0.74**	0.67*	0.69*	0.82**	0.83**
B / R	BR	0.70*	0.80**	0.69*	0.79**	0.31	0.73**
B / G	GB	-0.40	-0.60*	-0.09	-0.54	0.32	-0.25
G / R	GR	0.73**	0.71**	0.74*	0.56	0.61*	0.78**
	NDVIg	0.73**	0.70*	0.75*	0.57	0.60*	0.79**
	SAVIg	0.21	0.28	0.64*	0.23	0.57	0.66*
	OSAVIg	0.60*	0.61*	0.77**	0.50	0.62*	0.78**
R / G / B	VARI	0.75**	0.80**	0.76*	0.70*	0.50	0.79**
	NDVIrgb	0.74**	0.79**	0.76*	0.71*	0.46	0.79**
	SRrgb	0.75**	0.80**	0.75*	0.70*	0.47	0.78**

* and ** indicate significant correlation at P <0.05 and P < 0.01, respectively