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Table 1 Effect of different concentrations of B on growth attributes and B content of M. arvensis and C. flexuosus

From: Effects of boron toxicity on growth, oxidative damage, antioxidant enzymes and essential oil fingerprinting in Mentha arvensis and Cymbopogon flexuosus

Plants/treatments

Shoot length (cm)

Root length (cm)

Shoot FW (g)

Shoot DW (g)

Shoot B (mg/kg)

Root B (mg/kg)

M. arvensis

 Control

54.75 ± 1.94a

24.57 ± 1.02a

26.05 ± 1.58a

9.02 ± 0.95a

Not detected

0.19 ± 0.02f

 2.5 B

52.84 ± 1.23ab

23.61 ± 0.93a

24.25 ± 1.31b

7.87 ± 0.81b

0.14 + 0.01e

0.42 + 0.02e

 5 B

50.72 ± 1.58b

21.72 ± 0.86b

22.62 ± 0.20c

6.45 ± 0.28c

0.39 + 0.02d

0.93 + 0.07d

 10 B

45.07 ± 1.33c

17.20 ± 0.82c

17.45 ± 0.08d

4.60 ± 0.19d

0.87 + 0.04c

1.71 + 0.12c

 20 B

38.27 ± 1.17d

13.82 ± 0.79d

12.42 ± 0.17e

3.21 ± 0.12e

1.75 + 0.08b

3.41 + 0.21b

 30 B

29.12 ± 1.06e

09.87 ± 0.46e

08.52 ± 0.21f

2.57 ± 0.07f

3.34 + 0.16a

7.23 + 0.39a

C. flexuosus

 Control

187.84 ± 11.08a

56.10 ± 3.52a

124.56 ± 6.86a

28.28 ± 2.84a

Not detected

0.09 ± 0.01f

 2.5 B

181.43 ± 09.94ab

52.63 ± 3.46b

116.45 ± 6.09b

24.12 ± 2.46b

0.06 + 0.01e

0.17 + 0.02e

 5 B

165.51 ± 10.81b

47.23 ± 2.98c

109.75 ± 5.45c

22.23 ± 2.42b

0.13 + 0.01d

0.38 + 0.05d

 10 B

141.46 ± 08.65c

39.78 ± 2.27d

89.65 ± 4.94d

18.64 ± 2.14c

0.29 + 0.02c

0.64 + 0.07c

 20 B

127.55 ± 07.80d

31.64 ± 1.54e

73.56 ± 3.54e

15.31 ± 1.88d

0.49 + 0.03b

1.51 + 0.09b

 30 B

113.38 ± 07.43e

21.82 ± 1.18f

61.43 ± 3.19f

12.23 ± 1.49e

1.01 + 0.05a

3.42 + 0.14a

  1. Data represent the mean value ± standard error from five replicates (n = 5). The different lower case letters represent statistically significant differences between treatments (p < 0.05)