Growth variable

Nutrient solution

Control

25

50

(mM)

100

C.V

P-value

Length root (cm)

26.98 a

29.74 a

24.98 a

26.64 a

17.61

0.86

Plant length (cm)

19.72 a

20.08 a

16.12 b

17.62 ab

7.61

8.81

Stem diameter (mm)

4.12 a

4.13 a

3.37 a

4.69 a

13.43

2.22

Chlorophyll (SPAD index)

34.66 a

39.12 a

31.20 a

38.40 a

13.35

2.93

Fresh biomass of root (g)

0.82 a

0.99 a

1.36 a

0.93 a

51.13

0.95

Fresh biomass of stem (g)

2.17 ab

2.48 ab

1.68 b

2.89 a

22.44***

4.34

Fresh biomass of leaves (g)

1.41 b

1.66 ab

1.47 ab

2.31 a

27.60***

3.79

Dry biomass of leaves (g)

0.15 a

0.22 a

0.13 a

0.23 a

52.62

1.16

Dry biomass of stem (g)

0.09 a

0.11 a

0.15 a

0.13 a

79.86

0.38

Dry biomass of root (g)

0.02 a

0.03 a

0.03 a

0.03 a

49.74

0.20