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Table 4 Effect of TiO2 NPs on germination parameters of soybean (var. 22) under different NaCl concentrations

From: Potential of green synthesized titanium dioxide nanoparticles for enhancing seedling emergence, vigor and tolerance indices and DPPH free radical scavenging in two varieties of soybean under salinity stress

TiO2 NPs conc

NaCl conc (mM)

Radicle length (cm)

Shoot length (cm)

Seedling length (cm)

Radicle fwt (g)

Shoot fwt

(g)

Total fwt

(g)

0 ppm

0

8 ± 0.212d

18 ± 0.476b

26 ± 0.687bc

0.22 ± 0.0058b

0.87 ± 0.023b

1.07 ± 0.0288b

25

7 ± 0.185 fg

16 ± 0.423c

23 ± 0.608d

0.19 ± 0.005c

0.63 ± 0.0167 fg

0.82 ± 0.0216e

50

5 ± 0.132i

14 ± 0.371d

19 ± 0.503e

0.17 ± 0.0044d

0.59 ± 0.0156gh

0.76 ± 0.021ef

100

4.9 ± 0.129i

12.5 ± 0.331e

17.4 ± 0.461f

0.15 ± 0.0039ef

0.55 ± 0.014hi

0.7 ± 0.0185 fg

150

3 ± 0.093 k

11 ± 0.291f

14 ± 0.371 h

0.12 ± 0.0031hi

0.5 ± 0.013i

0.62 ± 0.016 h

200

2 ± 0.053 l

9 ± 0.238 g

11 ± 0.291i

0.09 ± 0.0024j

0.39 ± 0.0103 k

0.48 ± 0.0127i

30 ppm

0

10 ± 0.265a

22 ± 0.582a

32 ± 0.847a

0.26 ± 0.0069a

0.99 ± 0.026a

1.29 ± 0.033a

25

9 ± 0.238b

18.5 ± 0.489b

27.5 ± 0.731b

0.2 ± 0.0053c

0.77 ± 0.021c

0.97 ± 0.0256c

50

7.5 ± 0.198e

17.9 ± 0.474b

25.4 ± 0.672c

0.19 ± 0.005c

0.73 ± 0.019 cd

0.92 ± 0.024 cd

100

6.6 ± 0.175 g

16.2 ± 0.429c

22.8 ± 0.603d

0.19 ± 0.005c

0.7 ± 0.0185de

0.89 ± 0.0235d

150

5.1 ± 0.135i

14 ± 0.371d

19.1 ± 0.505e

0.17 ± 0.0045

0.64 ± 0.0169 fg

0.81 ± 0.021e

200

3.7 ± 0.098j

12.2 ± 0.323e

15.9 ± 0.421 fg

0.13 ± 0.0034gh

0.53 ± 0.014i

0.66 ± 0.0174gh

50 ppm

0

8.5 ± 0.225c

18.4 ± 0.487b

26.9 ± 0.712bc

0.2 ± 0.0053c

0.73 ± 0.019 cd

0.93 ± 0.024 cd

25

7.4 ± 0.196ef

16 ± 0.423c

23.4 ± 0.619d

0.16 ± 0.0042de

0.66 ± 0.017ef

0.82 ± 0.0217e

50

5.6 ± 0.148 h

11 ± 0.291f

16.6 ± 0.439 fg

0.15 ± 0.0039ef

0.55 ± 0.0145hi

0.7 ± 0.0185 fg

100

5.1 ± 0.135i

10 ± 0.365 fg

15.1 ± 0.399gh

0.14 ± 0.0037 fg

0.54 ± 0.014hi

0.68 ± 0.0179gh

150

3.5 ± 0.093j

10 ± 0.265 fg

13.5 ± 0.357 h

0.11 ± 0.0029i

0.52 ± 0.0137i

0.63 ± 0.0164 h

200

2 ± 0.053 l

9 ± 0.238 g

11 ± 0.291i

0.07 ± 0.0019 k

0.41 ± 0.0108 k

0.48 ± 0.0127i

  1. Data represent means ± standard errors of three biological replicates. Different letters indicate significant difference (p < 0·05), according to a Duncan multiple range test
  2. fwt Fresh weight