Table 1.

Pruning wood weight as affected by nitrogen supply.

Years	Scion/rootstock combination	Nitrate supply	Wood weight (g)	YAN (mg N/L)	Analysis of variance	Wood weight (g)	YAN (mg N/L)
2013	CS/RGM	N–	187.50 ± 34.18	120.00±	Years (Y)	***	–
		N+	242.50 ± 32.68	241.00±	Treatment (T)	*	***
	CS/110R	N–	164.50 ± 20.20	180.00±	Variety (V)	***	*
		N+	208.00 ± 14.94	252.00±	Rootstock (R)	**	NS
	PN/RGM	N–	155.00 ± 21.47	180.00±	Y/T	**	–
		N+	190.50 ± 10.92	215.00±	Y/V	***	–
	PN/110R	N–	158.00 ± 15.31	164.00±	V/R	*	NS
		N+	183.50 ± 11.07	223.00±	T/V	NS	NS
2014	CS/RGM	N–	298.00 ± 66.22	252.67 ± 45.79	Y/R	NS	–
		N+	255.50 ± 60.23	410.33 ± 11.68	T/R	NS	NS
	CS/110R	N–	266.00 ± 60.45	295.67 ± 30.83	Y/T/V	NS	–
		N+	266.11 ± 94.30	490.00 ± 26.00	Y/T/R	NS	–
	PN/RGM	N–	179.00 ± 28.07	268.00 ± 07.21	Y/V/R	NS	–
		N+	217.00 ± 26.10	518.00 ± 25.87	T/V/R	NS	NS
	PN/110R	N–	203.00 ± 44.11	260.33 ± 47.35	Y/T/V/R	NS	–
		N+	197.50 ± 50.84	568.00 ± 47.29

Values are means of 3 independent replicates + SE. N−: 0.8 mM N; N+: 3.6 mM N. One factor (N treatment) Anova tests were made, as well as Tukey tests. For each rootstock/variety combination, a and b indicate significantly different values between N– and N+ treatment. ^±Unique value. Statistical analyses were done using an analysis of variance with years (Y), rootstock (R), treatment (T), variety (V), and their interaction effects (ns, P > 0.05;

^*P < 0.05;

^**P < 0.01;

^***P < 0.001).