highly significantp < 0.01
As shown in Figure 8 A, the shoot lengths with 200 and 600 mg/L decolorized NC (200-1 and 600-1) were 1.38- and 1.24-fold those of 200 and 600 mg/L untreated NC (200-0 and 600-0), respectively, and the differences were highly significant ( p < 0.01).