Figure 6.

Morphological characteristics of transgenic poplars under two stresses. T1–T3: different transgenic poplar lines; WT, the wild type 84K poplar. (A) Phenotype of poplars at 1-month-old in the rooting medium containing 0, 35, 50, and 100 mM NaCl, respectively. Plant height, root length, and fresh weight of both the transgenic and WT seedlings under the salt stresses. (B) The WT and transgenic plants at one-month-old were treated with respective 150 mM salt and PEG-6000 for 5 days. The error bars represent standard deviation. Asterisks indicate significant differences between transgenic lines and wild type lines (t test, *P < 0.05, **P < 0.01).