The leaf water potential measured on pre-dawn on both biochar
treatments was less negative compared to control, but such
decrease was found significantly different for the measurement of
the 20th June (Fig. 5A) and for the measurement of the 3rd July at
P = 0.07. At mid-day the leaf water potentials of B1 and B2 were
always significantly less negative compared to Co (Fig. 5B)