Table 1.
The effects of various NaCl concentrations on the plant height, root length, fresh weight and dry weight of Salvia miltiorrhiza seedlings.
Figure 1.
The effects of various NaCl concentrations on the photosynthetic pigments of Salvia miltiorrhiza leaves.
The photosynthetic pigments measured in the experiment include chlorophyll a (Chl-a), chlorophyll b (Chl-b) and total chlorophyll contents (T-Chl). Salvia miltiorrhiza seedlings were cultivated in 1/2 Hoagland nutrient solution for 3 weeks and were later exposed to salt stress by adding NaCl up to concentration of 25, 50, 75 and 100 mM of the hydroponic solution for 30 days. Non-treated plants were used as controls (0 mM NaCl). Error bars represent the standard errors (SE) of the means.
Table 2.
The effects of various NaCl concentrations on the ion content and selective absorption of Salvia miltiorrhiza seedlings.
Figure 2.
The effects of various NaCl concentrations on the enzyme activities of Salvia miltiorrhiza leaves.
The enzyme activities measured in this experiment include superoxide dismutase (SOD) and catalase (CAT) activities. Salvia miltiorrhiza seedlings were cultivated in 1/2 Hoagland nutrient solution for 3 weeks and were later exposed to salt stress by adding NaCl to concentrations of 25, 50, 75 and 100 mM of the hydroponic solution for 30 days. Non-treated plants were used as controls (0 mM NaCl). Error bars represent the standard errors (SE) of the means.
Figure 3.
The effects of various NaCl concentrations on the osmolyte contents of Salvia miltiorrhiza leaves.
The osmolyte contents measured in the experiment include the soluble protein and soluble sugar contents. Salvia miltiorrhiza seedlings were cultivated in 1/2 Hoagland nutrient solution for 3 weeks and were later exposed to salt stress by adding NaCl up to 25, 50, 75 and 100 mM of the hydroponic solution for 30 days. Non-treated plants were used as controls (0 mM NaCl). Error bars represent the standard errors (SE) of the means.