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Table 3 Total chlorophyll and total pigments (mg/g fwt) of TiO2 NPs (+ NPs) and non-TiO2 NPs (-NPs) treated soybean plants grown under different NaCl concentrations

From: Efficacy of green synthesized titanium dioxide nanoparticles in attenuation salt stress in Glycine max plants: modulations in metabolic constituents and cell ultrastructure

Treatments

Total chlorophyll

Total pigments

NaCl conc. (mM)

NPs (30 ppm)

Days after salt treatment

15

30

15

30

0

-NPs

2.54 ± 0.07b

2.84 ± 0.024b

3.23 ± 0.11b

3.58 ± 0.045b

 + NPs

2.9 ± 0.073a

3.26 ± 0.029a

3.92 ± 0.106a

4.36 ± 0.038a

25

-NPs

2.49 ± 0.023d

1.74 ± 0.045d

3.028 ± 0.038bc

2.407 ± 0.07d

 + NPs

2.55 ± 0.022b

1.94 ± 0.052c

3.57 ± 0.044c

2.70 ± 0.08c

50

-NPs

2.021 ± 0.016f

1.63 ± 0.043e

2.968 ± 0.033e

2.002 ± 0.07e

 + NPs

2.35 ± 0.017c

1.752 ± 0.051cd

3.304 ± 0.034c

2.57 ± 0.068bc

100

-NPs

1.82 ± 0.011fg

1.39 ± 0.018g

2.198 ± 0.028f

1.89 ± 0.030d

 + NPs

2.11 ± 0.013e

1.65 ± 0.045de

3.04 ± 0.022d

2.485 ± 0.065d

150

-NPs

1.63 ± 0.007h

1.093 ± 0.037f

1.947 ± 0.02h

1.6 ± 0.05de

 + NPs

1.97 ± 0.009g

1.433 ± 0.027e

2.804 ± 0.026e

2.032 ± 0.041de

200

-NPs

0.43 ± 0.012j

-

0.842 ± 0.019f

-

 + NPs

1.47 ± 0.007i

0.766 ± 0.023h

2.09 ± 0.045g

1.117 ± 0.038e

  1. *Data represent means ± standard errors of three biological replicates. Within each column for each parameter, different letters (a, b, c, d…) indicate significant difference (p < 0·05), according to a Duncan multiple range test