Moisture and Salinity Stress Induced Changes in Biochemical Constituents and Water Relations of Different Grape Rootstock Cultivars

Table 4

Influence of salinity stress on water relation and biochemical parameters of grape rootstocks during various stages of stress cycle.

Rootstocks/salinity levels	5th day					15th day					25th day
	OP; (MPa)	WP; (Mpa)	Red sugar; (mg g^−1)	Proteins; (mg g^−1)	Phenols; (mg g^−1)	OP; (MPa)	WP; (Mpa)	Red sugar; (mg g^−1)	Proteins; (mg g^−1)	Phenols; (mg g^−1)	OP; (MPa)	WP; (Mpa)	Red sugar; (mg g^−1)	Proteins; (mg g^−1)	Phenols; (mg g^−1)
Salinity levels
2 dS m^−1	0.886	1.085	112.67	122.49	7.44	0.639	0.950	106.45	118.50	10.06	0.654	0.743	127.47	155.95	10.927
4 dS m^−1	0.836	1.038	136.18	126.16	7.15	0.671	0.960	110.01	111.20	8.64	0.643	0.874	131.50	185.54	9.626
Level of significance*	0.0023	0.4079	<0.0001	0.6561	0.3463	0.003	0.828	0.370	0.089	<0.0001	0.377	0.110	<0.0001	<0.0001	<0.0001
Rootstocks
1103P	0.88	1.20	114.29	136.28	7.35	0.62	0.92	86.67	123.31	12.34	0.69	0.908	133.37	173.36	11.00
110R	0.93	1.17	173.08	154.26	8.07	0.71	1.08	140.89	132.36	10.77	0.67	0.753	133.67	235.99	12.85
1613C	0.79	1.04	93.75	97.04	5.89	0.65	0.86	111.05	87.97	6.54	0.62	1.038	100.76	146.63	8.97
99R	0.87	0.98	132.99	147.51	9.84	0.64	1.03	118.69	130.35	11.37	0.69	0.656	99.50	190.57	9.20
B2-56	0.91	0.98	139.38	144.30	7.41	0.68	0.87	108.75	113.54	8.61	0.64	0.500	109.84	153.69	10.68
Dogridge	0.87	1.05	102.60	95.07	5.94	0.60	1.03	106.25	123.03	8.2	0.59	0.776	76.42	135.52	7.54
Salt Creek	0.72	1.03	89.75	85.09	4.97	0.64	0.83	104.37	92.47	7.09	0.63	0.928	95.96	138.08	8.86
Teleki 5A	0.81	1.00	123.76	134.38	6.86	0.64	1.03	88.18	88.85	6.70	0.63	0.920	117.70	152.84	10.24
V. longii	0.91	1.07	150.24	124.86	9.34	0.69	0.90	109.23	141.74	12.59	0.64	0.811	125.67	210.14	13.10
Level of significance*	<0.0001	<0.0001	<0.0001	0.0009	<0.0001	0.0002	0.106	<0.0001	<0.0001	<0.0001	0.0058	0.120	0.0016	<0.0001	<0.0001
Interaction effect (rootstock × salinity)
Level of significance*	<0.0001	0.2656	<0.0001	0.0026	0.0024	0.0002	0.0018	<0.0001	0.0004	<0.0001	0.0360	0.2414	<0.0001	<0.0001	<0.0001

∗Values below 0.05 indicate significance at 𝑃<0.05. OP: osmotic potential; WP: water potential.