The response of soluble protein to normal watering (Control) and salt water irrigation (Treated) in Solanum melongena, Momordica charantia, Capsicum annuum.

The single salt solution (NaCl, 150 mmol/L) was watered once a day (25 ml per pot) for a total of 10 days, seedling leaves were randomly sampled every 2 days to determine the soluble protein content. Error bars represent standard errors of soluble protein content with 4–5 replicates measurements. The same letter in each picture represents no significant difference (Duncan test, P < 0.05, n = 4–5).