Table 2. Significant (p< 0.01) phenotypic trait correlations with mean values for each genotype for season 2012-2013 (A); 2013-2014 (B); 2014-2015 (C).

A
	NUE	NUpE	NUtE	NHI	HD	SN	TGW	GN	PH	GPC	GNACE
NUE		0.779	NS	0.274	NS	0.305	NS	0.686	NS	NS	0.812
NUpE	0.831		-0.424	NS	NS	NS	NS	0.537	0.319	0.548	0.953
NUtE	NS	-0.482		0.384	NS	NS	NS	NS	NS	-0.733	-0.276
NHI	NS	NS	NS		NS	NS	NS	0.412	NS	NS	NS
HD	0.292	NS	NS	NS		NS	NS	NS	NS	NS	NS
SN	0.389	0.34	NS	-0.352	NS		-0.304	-0.342	NS	NS	NS
TGW	NS	NS	NS	NS	NS	-0.292		-0.283	NS	NS	NS
GN	0.704	0.542	NS	NS	0.461	NS	NS		NS	NS	0.624
PH	NS	NS	NS	NS	NS	NS	NS	NS		NS	NS
GPC	NS	0.386	-0.931	0.282	-0.332	NS	NS	NS	NS		0.54
GNACE	0.834	0.981	-0.491	NS	NS	0.289	NS	0.563	NS	0.413
B
	NUE	NUpE	NUtE	NHI	HD	SN	TGW	GN	PH	GPC	GNACE
NUE		0.716	0.286	0.582	0.277	0.658	NS	0.665	NS	-0.278	0.85
NUpE	0.671		-0.37	NS	NS	0.501	NS	0.439	NS	0.414	0.931
NUtE	0.549	NS		0.618	0.294	NS	NS	NS	NS	-0.772	NS
NHI	0.611	NS	0.763		0.473	0.314	NS	0.546	NS	-0.478	0.425
HD	0.309	NS	0.381	0.48		NS	NS	0.404	0.305	NS	NS
SN	0.574	0.486	NS	NS	NS		-0.389	NS	NS	NS	0.553
TGW	NS	NS	NS	NS	-0.295	-0.462		NS	NS	NS	NS
GN	0.509	NS	0.5	0.557	0.621	NS	-0.3		NS	NS	0.574
PH	NS	NS	NS	NS	0.393	NS	NS	NS		0.387	NS
GPC	-0.442	0.305	-0.93	-0.525	NS	NS	NS	-0.36	NS		NS
GNACE	0.809	0.929	NS	0.362	NS	0.466	NS	0.36	NS	NS
C
	NUE	NUpE	NUtE	NHI	HD	SN	TGW	GN	PH	GPC	GNACE
NUE		0.898	0.401	NS	NS	0.575	NS	0.687	NS	-0.327	0.939
NUpE	0.897		NS	NS	NS	0.64	NS	0.486	NS	NS	0.948
NUtE	0.58	NS		0.659	NS	NS	NS	0.527	NS	-0.738	NS
NHI	0.569	0.28	0.774		NS	NS	NS	0.499	NS	NS	0.282
HD	NS	NS	NS	NS		NS	NS	-0.275	NS	NS	NS
SN	0.494	0.567	NS	NS	NS		-0.327	NS	0.316	NS	0.523
TGW	NS	NS	NS	NS	NS	NS		-0.369	NS	NS	NS
GN	0.695	0.51	0.622	0.527	NS	NS	NS		NS	NS	0.623
PH	NS	NS	NS	NS	NS	0.331	NS	NS		NS	0.255
GPC	-0.275	NS	-0.694	NS	NS	NS	NS	-0.378	NS		-0.02
GNACE	0.957	0.94	0.407	0.576	NS	0.527	NS	0.62	NS	NS

Above the diagonals the correlation coefficients of the extensive (N0), while below, for the intensive (N120) fertiliser management can be found (N0: 0 kg N hectare^-1, N120: 120 kg N hectare^-1); NS: non-significant