Fig. 1

Expression of ThST7 gene in cotton confers salt tolerance phenotype in seed germination. A Seed germination curve. Seeds of the wild type (CK) and ST7-OE lines were germinated in soil watered with 0 or 250 mmol·L⁻¹ NaCl for 8 days and germination percentage was recorded every day. Values are mean ± SD (10 seeds per replicate, five replicates per treatment). Different letters denote significant differences (P < 0.05) from Duncan's multiple range tests. B Seedling survival ratio. The above germinated seeds were grown for 2 weeks before seedling survival ratio was recorded. Values are mean ± SD (10 plants per replicate, five replicates per treatment). Different letters denote significant differences (P < 0.05) from Duncan's multiple range tests. C Growth of germinated seeds. Bar = 4 cm