Table 4.

Generic and variety-specific model estimates for berry anthocyanin concentration (mg/g berry)VIF _max Maximum variance inflation factor, Rn_SN, Rn_GS September to November months and GS rainfalls (mm), Hr25_RP number of hours over 25 °C during ripening period, Tav_Jan, Tmn_Jan average and mean of minimum temperatures in January (°C), Rad_RP radiation during ripening period (MJ/m²)

Variety	Intercept	Climate variables						Model performance
		Rn_SN	Rn_GS	Hr25_RP	Tav_Jan	Tmn_Jan	Rad_RP	Adj_r2	PEa	VIFmax
Generic model	1.68***	0.00196 ***	−0.0019 ***	−0.0014***				0.72	0.13	3.06
Cabernet Sauvignon	1.72***	0.00229 ***	−0.00200***	−0.00172***				0.83	0.12	2.83
	3.63***				−0.094**			0.65	0.17	–
Shiraz	2.39***b				−0.042**			0.50	0.12	–
	2.38***c					−0.091***	0.022**	0.94	0.04	2.89
	2.40***c					−0.061***		0.83	0.07	–
	2.59***c				−0.051***			0.77	0.08	–

** P < 0.01, *** P < 0.001

^aSquare root of average prediction error (PE) (i.e. in original measurements unit)

^bBased on all data

^cExcludes one outlier observation