TABLE 4.

Mean values and ANOVA of the GNDVI, ExG, and NDVI indices selected at the best temporal scenario (TS) for phenotyping of total biomass, sugar release and theoretical ethanol yield, respectively, at the level of cereal species.

	GNDVI (in TS-3) vs. total biomass dry weight		ExG (in TS-2) vs. sugar release		NDVI (in TS-3) vs. theoretical ethanol yield
Cereal species	GNDVI	Biomass (kg/m2)	EXG	Sugar release (ul/mg)	NDVI	Theoretical ethanol yield (m3/ha)
T. aestivum	0.54 b	0.67 b	0.44 b	0.98 b	0.52 b	3.49 b
T. durum	0.57 a	0.83 a	0.43 b	0.98 b	0.54 ab	4.14 a
H. vulgare	0.55 b	0.71 b	0.59 a	1.16 a	0.56 a	4.21 a
x Triticosecale	0.51 c	0.52 c	0.38 c	0.94 c	0.49 c	2.54 c

Within a column mean values followed by the same letter do not differ significantly according to least significant difference (LSD) test at P = 0.05.