. 2019 Apr 9;10:445. doi: 10.3389/fpls.2019.00445

Table 2.

Analysis of variance in physiological parameters involved in shoot and root under different grafting combinations.

	Source of variations	R2	R5	R6	R2	R5	R6	R2	R5	R6

		D/D			L/D			Z/D
P_N	Genotypes (G) (df = 2)	0.24^NS	5.42^NS	33.32*	1576.02**	1830.10**	24.98*	5320.18**	1686.69**	65.20*
	Year (Y) (df = 1)	2.36^NS	0.95^NS	1.89^NS	1.00^NS	0.08^NS	0.39^NS	0.70^NS	0.02^NS	0.08^NS
	G × Y (df = 2)	4.85*	0.88^NS	0.41^NS	0.00^NS	0.00^NS	2.41^NS	0.00^NS	0.00^NS	2.28^NS
			D/D			D/L			D/Z
RA	Genotypes (G) (df = 2)	5.64^NS	77.52*	65.09*	831.67**	172.43**	68.89*	852.73**	63.47*	547.60**
	Year (Y) (df = 1)	0.00^NS	3.00^NS	9.87^NS	1.71^NS	3.44^NS	0.00^NS	1.68^NS	0.24^NS	2.69^NS
	G × Y (df = 2)	44.31**	3.11^NS	1.68^NS	0.12^NS	0.88^NS	1.74^NS	0.13^NS	2.10^NS	0.22^NS
RBSM	Genotypes (G) (df = 2)	2.50^NS	209.90**	160.76**	36.20*	48.26*	41.25*	83.00*	50.10*	1357.36**
	Year (Y) (df = 1)	0.63^NS	0.32^NS	4.25^NS	0.07^NS	8.15^NS	2.01^NS	0.21^NS	7.47^NS	0.71^NS
	G × Y (df = 2)	20.26**	0.75^NS	0.43^NS	0.71^NS	3.46*	2.30^NS	0.30^NS	3.52*	0.06^NS
Root length	Genotypes (G) (df = 2)	10.02^NS	78.30*	8.45^NS	5.71^NS	25.92*	0.41^NS	17.60^NS	9.69^NS	7.38^NS
	Year (Y) (df = 1)	0.10^NS	0.06^NS	0.08^NS	1.35^NS	0.00^NS	0.01^NS	3.85^NS	4.19^NS	1.68^NS
	G × Y (df = 2)	2.49^NS	0.32^NS	2.12^NS	2.31^NS	0.44^NS	11.39**	1.26^NS	1.24^NS	0.94^NS
Root dry mass	Genotypes (G) (df = 2)	4.48^NS	6.06^NS	14.63^NS	0.92^NS	1.05^NS	0.40^NS	5.86^NS	0.69^NS	0.69^NS
	Year (Y) (df = 1)	1.37^NS	4.73^NS	3.80^NS	1.32^NS	4.31^NS	2.01^NS	5.16^NS	1.40^NS	7.20^NS
	G × Y (df = 2)	4.11*	5.50**	2.97^NS	3.80*	4.58*	6.40**	1.26^NS	8.80**	4.80*

D/D, self-grafts (including Dp/Dp, self-grafts of parental cultivars; Ds/Ds, self-grafts of second-generation cultivars; Dc/Dc, self-grafts of current cultivars); L/D, grafts with L14 scion (including L/Dp, parental cultivars grafted onto L14 scion; L/Ds, second-generation cultivars grafted onto L14 scion; L/Dc, current cultivars grafted onto L14 scion) (as in Z/D); D/L, grafts with L14 rootstock (including Dp/L, parental cultivars grafted onto L14 rootstock; Ds/L, second-generation cultivars grafted onto L14 rootstock; Dc/L, current cultivars grafted onto L14 rootstock) (as in D/Z). P_N, net photosynthesis rate, RA, root activity, RBSM, root bleeding sap mass, *P < 0.05, **P < 0.01, NS, not significant.