Table 2: Gas exchange and water relation parameters of grape rootstocks of different stages of 50% moisture stress cycle.

Rootstocks7th day14th day21st day
WUEOPRWC WUEOPRWC WUEOPRWC

1103P0.9238.7662.922.9981.331.2842.1633.104.2678.263.3734.6610.582.0373.00
110R0.5144.06106.291.5587.651.1647.1344.131.7880.802.5034.8814.181.7074.64
1613C2.9440.5016.061.7466.013.6743.3612.221.7160.065.1813.332.661.6050.81
99R0.8840.6055.962.4381.451.7743.2324.852.4380.113.5430.948.861.6672.80
B2-562.8440.6350.262.1482.191.3243.8036.031.9578.313.1431.1210.611.9868.97
Dogridge0.8837.4054.992.2282.781.8943.4025.602.5077.812.5926.1010.312.7966.33
Salt Creek2.8142.6317.991.3679.732.2448.3321.971.5473.613.6819.035.411.6266.33
St. George2.3642.2623.441.3671.253.6247.0313.971.2558.834.0212.243.021.5749.34
Teleki 5A3.9742.3011.521.5277.881.9545.3621.161.6665.694.2919.144.521.9251.56
V. longii 3.0339.0312.942.4774.763.8443.9011.441.9170.144.7118.533.9320.752.35

SEM ±0.8661.28418.9720.1162.0440.3201.0254.2560.16241.8600.4101.8120.7350.2371.789

Level of significance*0.1040.0400.0369 <0.0001<0.0001<0.00010.0040.0003<0.0001<0.00010.002<0.0001<0.0001<0.0001<0.0001

Values below 0.05 indicate significance at . : transpiration rate; : photosynthetic rate; WUE: water use efficiency; OP: osmotic potential; RWC: relative water content.