Figure 5

The pH of PGNO-treated DI water and 0.5 mM phosphate buffer with different dilution and germination of spinach seeds. (a) The pH of differently diluted DI water and 0.5 mM potassium phosphate buffer (pH 6.0) treated with or without (control) PGNO. Dilution was done 0 (1×), 2 (1/2×), 10 (10×), and 30 (30x) times. (b) Germination of spinach seeds assessed for 7 days after seeds were soaked in PGNO-treated DI water and 0.5 mM potassium phosphate buffer (pH 6.0) with different dilutions for 30 min. Control indicates no PGNO-treated water and buffer. All measurements were performed in 3 replicates.