Salinity and drought stress treatments
For the salinity stress treatment, 1-week-old seedlings were treated
with different concentrations of NaCl solution (0, 50, or 100 mM) for 1
week. Fresh weights of root, leaf sheath, and leaf blade tissues were
measured at 1 week after NaCl treatments. For the salinity stress
treatment under soil-grown condition, 1-week-old seedlings were
irrigated with 50 mM NaCl solution for 2 weeks. For the drought stress,
1-week-old seedlings were withheld irrigation for 1 week and rewatered
for 1 week. Fresh weights of aerial shoots after salinity and drought
stress treatment were measured.