Figure 2

Physiological changes of Bd21 seedling leaves under PEG osmotic stress, Cd2+ stress and their combined stress treatments. (A) Fresh weight (FW); (B) Plant height; (C) Main root length; (D) Relative water content; (E) Proline; (F) Malondialdehyde (MDA); (G) Soluble sugar; (H) Betaine. Error bars indicate standard errors (SE) of three biological replicates. Statistically significant differences between treatments and control were calculated using independent Student’s t-tests: *p < 0.05; **p < 0.01; ***p < 0.001.