Fig. 2.
The RWC of liquorice stolons subjected to drought stress. The control plants (C2d, C16d and C28d) were maintained under normal irrigation conditions. For the water-stressed plants (S2d, S16d and S28d), irrigation was discontinued, and the samples were collected after 2, 16 and 28 days after withdrawing irrigation, respectively. The values are expressed as the means of 3 replicates. The mean values of each sample were analysed using the t-test to compare the corresponding control and stress treatments. The differences were considered to be significant if P < 0.01, as indicated by an asterisk (∗).