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Chemical and Biological Technologies in Agriculture

Table 4 The effect of vermicompost, biochar and deficit irrigation on physiological traits of eggplant

From: Biochar and vermicompost improve growth and physiological traits of eggplant (Solanum melongena L.) under deficit irrigation

Treatment

Chl. a (mg/g FW)

Chl. b (mg/g FW)

Antiox. capacity (%)

Ionic leakage (%)

N (%)

P (%)

K (%)

Fe (mg/kg DW)

Mn (mg/kg DW)

MDH (µg/g FW)

POD (µg/g FW)

CAT (µg/g FW)

SOD (µg/g FW)

S1V0B0

4.0 d

1.5 de

19.3 e

45.3 c

2.3 e

0.3 e

0.6 ef

35.3 d

31.7 cd

0.5 e

1.0 e

3.3 e

95.0 e

S1V0DPB

5.3 c

2.1 c

39.8 d

35.1 d

4.2 cd

0.6 c

1.5 de

51.3 cd

60.6 bc

0.4 e

1.0 e

2.7 e

97.0 e

S1V0PB

6.5 b

2.7 b

49.8 b

30.3 d

5.7 b

0.8 b

2.6 b

84.7 b

80.6 b

0.4 e

1.0 e

4.0 e

98.3 e

S1V1B0

5.5 c

2.1 c

20.7 e

38.1 cd

2.7 e

0.4 d

0.8 e

38.0 d

40.0 c

0.4 e

1.1 de

4.7 de

97.7 e

S1V1DPB

6.8 b

2.7 b

27.5 e

30.0 de

5.3 b

0.8 b

1.8 d

78.5 b

77.5 b

0.5 e

1.2 de

5.3 de

99.0 e

S1V1PB

8.0 a

3.4 a

34.4 de

25.0 e

6.6 a

1.1 a

3.1 a

97.2 a

91.7 a

0.6 de

1.4 d

6.0 de

100.3 e

S2V0B0

2.0 def

1.1 f

27.3 e

53.0 b

1.7 f

0.2 e

0.4 f

18.0 e

25.6 cd

1.7 c

2.2 c

13.3 b

146.0 c

S2V0DPB

2.5 de

1.8 d

51.2 bc

40.7 c

3.5 d

0.5 cd

1.1 e

40.6 d

52.3 c

0.8 d

1.3 d

7.0 d

133.3 c

S2V0PB

3.3 de

2.3 c

74.1 a

37.0 cd

4.8 c

0.7 b

2.2 c

63.7 c

72.3 bc

0.3 e

0.7 e

3.3 e

113.3 d

S2V1B0

2.6 de

1.4 def

27.6 e

45.0 c

2.1 f

0.3 e

0.5 f

26.0 de

31.0 cd

1.1 d

1.8 c

9.7 c

170.7 b

S2V1DPB

3.4 de

2.0 c

50.5 bc

35.0 cd

3.9 cd

0.5 cd

1.5 de

57.5 c

63.5 bc

0.5 de

0.8 e

4.5 e

126.6 d

S2V1PB

4.0 d

2.7 b

59.1 b

25.0 e

5.0 c

0.8 b

2.3 c

78.6 b

82.3 b

0.4 e

0.7 e

3.3 e

118.0 d

S3V0B0

1.2 def

1.0 def

33.3 e

70.0 a

1.4 f

0.2 e

0.4 f

13.3 e

17.5 d

4.0 a

3.7 a

18.7 a

188.3 a

S3V0DPB

1.7 def

1.3 def

55.6 bc

55.0 b

3.2 d

0.4 d

0.9 e

33.7 d

42.0 c

1.8 c

1.9 c

8.5 c

143.4 c

S3V0PB

2.1 def

1.8 d

78.7 a

60.0 b

4.5 c

0.6 c

1.6 de

47.0 d

67.7 bc

0.7 d

1.2 d

4.0 e

123.3 d

S3V1B0

1.4 def

1.0 def

36.6 de

55.1 b

1.8 f

0.2 e

0.3 f

17.8 e

25.0 d

3.5 b

3.1 b

15.0 b

165.0 b

S3V1DPB

2.2 def

1.3 def

61.9 b

45.3 c

3.2 d

0.4 d

1.0 e

42.3 d

51.0 c

1.4 c

1.4 d

6.8 d

130.0 cd

S3V1PB

2.6 def

2.3 c

65.9 b

50.0 bc

4.0 cd

0.6 c

1.9 d

64.7 c

65.6 bc

0.4 e

0.6 e

3.3 e

112.2 d

  1. B0, no biochar; DPB, 500 g m−2 date palm biochar and PB, 500 g m-2 pistachio biochar; V0, no vermicompost and V1, 1500 g m−2; S1, 100% water requirement; S2, 75% water requirement and S3, 50% water requirement; Chl. a, chlorophyll a, Chl. B, chlorophyll b; Antiox capacity, antioxidant capacity; N, nitrogen; P, phosphorous; K, potassium; M, manganese; Fe, iron; MDH, malondialdehyde; POD, guaiacol peroxidase; CAT, catalase and SOD, superoxide dismutase
  2. Different letters within each column are significantly different at P < 0.05 using the Duncan multiple range test
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