
Figure 1.
Effects of waterlogging stress on chlorophyll content of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 2.
Effects of waterlogging stress on the relative electrical conductivity of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 3.
Effects of waterlogging stress on the malondialdehyde (MDA) content of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 4.
Effects of waterlogging stress on the soluble sugar content of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 5.
Effects of waterlogging stress on the soluble protein content of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 6.
Effects of waterlogging stress on the peroxidase (SOD) activity of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.

Figure 7.
Effects of waterlogging stress on the superoxide dismutase (POD) activity of Z. armatum leaves. The vertical bars represent the standard errors, n = 3. Bars followed by different letter(s) are statistically significant at p < 0.05. CK: Seedlings were not flooded. A: Seedlings were flooded at 2.7 cm above the ground level. B: Seedlings were flooded at 5.5 cm above the ground level. C: Seedlings were flooded at 11 cm above the ground level.