Fig. 2

Phenotypic alterations of STTM168 plant and the control under salinity stress. A The shoot length of STTM168 and CK seedlings grown on 1/2 MS medium supplemented with or without 150 mM NaCl at 21 d after planting; (B) The root length of STTM168 and CK seedlings grown on 1/2 MS medium supplemented with or without 150 mM NaCl at 21 d after planting; (C) The root number of STTM168 and CK seedlings grown on 1/2 MS medium supplemented with or without 150 mM NaCl at 21 d after planting; (D) Na⁺ content in the roots of STTM168 and CK seedlings grown on 1/2 MS medium supplemented with or without 150 mM NaCl at 21 d after planting. A-D The values presented in the charts are the mean ± SD (n = 3). * t-test P value ≤ 0.05; ** t-test P value ≤ 0.01