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Table 3 Effect of Azotobacter chroococcum 76A on the leaves ions of Micro Tom grown under increasing salinity (0, 50, 100 mM NaCl) and two nutrient regimens (Sub – Suboptimal, Opt- Optimal)

From: Root inoculation with Azotobacter chroococcum 76A enhances tomato plants adaptation to salt stress under low N conditions

 

Na

NH4

K

Mg

Ca

Cl

NO3

PO4

 

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

mg/kg d.m.

Inoculum (I)

 Control

19.6

2.6

29.1 a

3.7 b

10.7 b

42.5 b

14.3 a

18.6 a

 76 A

22.2

2.3

24.7 b

4.1 a

14.6 a

57.1 a

11.2 b

13.7 b

Nutrient Solution (N)

 Sub - 0 mM NaCl

1.8 c

0.8 c

42.8 a

4.7 a

13.7 a

25.9 d

19.0 a

16.3 ab

 Sub - 50 mM NaCl

22.8 b

1.2 c

23.9 c

4.4 a

14.8 a

55.6 bc

10.3 bc

13.8 c

 Sub - 100 mM NaCl

33.0 a

1.4 c

21.2 cd

4.2 a

10.3 b

61.6 b

7.9 c

15.9 b

 Opt - 0 mM NaCl

7.8 c

3.1 b

30.9 b

3.2 b

13.4 a

31.8 d

19.6 a

18.3 a

 Opt - 50 mM NaCl

24.5 b

3.0 b

23.6 c

3.3 b

14.9 a

50.5 c

11.8 b

14.6 bc

 Opt - 100 mM NaCl

35.5 a

5.2 a

19.1 d

3.5 b

9.0 b

73.5 a

7.8 c

18.2 a

Significance

 I

ns

ns

**

***

***

***

***

***

 N

***

***

***

***

**

***

***

**

 IxN

*

ns

ns

***

**

***

***

***

  1. ns, *; **, ***Non significant or significant at P ≤ 0.05, 0.01, and 0.001, respectively
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BMC Plant Biology

ISSN: 1471-2229

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