Fig. 5.

Effects of drought and inoculation with L. bicolor on the root contents of (A) tZR (cytokinin) and (B) ABA of poplar seedlings with roots divided between different treatments in a split-root system. The root compartments were either inoculated with L. bicolor (Lacc) or non-inoculated (NI) and either subjected to well-watered (Ww) or drought (D) conditions in different combinations. Data from well-watered and drought compartments are presented in grey and white, respectively. Data are means (±SE), n=4. Different letters indicate significant differences among the treatments as determined using ANOVA followed by Tukey’s test (α=0.05).