Fig 1.
Effects of exogenous melatonin on GR in cotton seeds under salt stress.
The data are the means of six replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Fig 2.
Melatonin content of seeds germinating under different treatments.
The data are the means of four replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Fig 3.
Effects of exogenous melatonin on H2O2 content in cotton seeds under salt stress.
The data are the means of three replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Table 1.
MDA content (μmol g-1) of melatonin-pretreated cotton seeds under salt stress.
Fig 4.
Effects of exogenous melatonin on EL content in cotton seeds under salt stress.
The data are the means of three replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Fig 5.
Effects of exogenous melatonin on proline (A), soluble sugar (B), and soluble protein (C) contents of cotton seeds under salt stress. The data are the means of three replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Fig 6.
Effects of exogenous melatonin on Na+ (A), Cl- (B), and K+ (C) content in cotton seeds under salt stress. The data are the means of six replicates (±SE), and treatments with different letters are significantly different at a p < 0.05 threshold.
Table 2.
Effects of melatonin treatment on K+/Na+ balance in cotton seeds under salt stress.