Table 4.

Maximum electrical potentials (EP) as related to water restriction (evaluated by xylematic potential measurements with a Scholander pressure pump)

Day	Maximal EP at 85 cm* (mV)	Xylematic Potential (MPa)
1	−106.49	−0.76
2	−99.91
3	−85.39
4	−93.22
5	−85.72
6		−1.53
7	−83.38
8	−97.61	−1.03

Irrigation was resumed at 11:59:00 AM of day 7; *Microelectrode inserted at 85 cm above the soil surface.