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Table 3 Effect of the methanolic extracts of S.arvensis, P.harmala, and T.baccata applied in the soil on the reproduction of M.incognita and the growth of tomato plants under greenhouse

From: Nematicidal activity of aqueous and organic extracts of local plants against Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions

Plant extract

Extract dosage (ml/pot)

Gall index

Number of J2s

Number of egg masses

Number of galls

Dry weight of the aerial part

Dry weight of roots

Methanolic S.arvensis

3

4.5 ± 0.22 bcd

3500.33 ± 231.45bc

72.50 ± 5.65b

121.66 ± 5.23bc

7.10 ± 0.46cde

2.09 ± 0.26a

1.5

5.0 ± 0.25 cde

3687.33 ± 238.61cd

97.00 ± 11.30bce

128.33 ± 4.93c

6.01 ± 0.47bcd

2.12 ± 0.20a

0.75

5.66 ± 0.21 de

4416.83 ± 263.12d

104.5 ± 4.89cef

146.83 ± 12.07cd

4.76 ± 0.60b

1.24 ± 0.15a

Methanolic T. baccata

3

4.00 ± 0.25 bc

2682.50 ± 151.36b

87.33 ± 3.30bc

125.33 ± 8.08bc

7.54 ± 0.51de

1.53 ± 0.31a

1.5

4.500 ± 0.22 bcd

3723.50 ± 205.96cd

129.83 ± 12.12f

176.00 ± 5.70de

6.55 ± 0.54bcde

1.21 ± 0.08a

0.75

4.83 ± 0.30 cd

4390.00 ± 205.47d

164.00 ± 11.93g

190.33 ± 9.85e

5.23 ± 0.34bc

1.07 ± 0.15a

Methanolic P. harmala

3

3.50 ± 0.22 b

3140.50 ± 73.78bc

68.16 ± 5.28b

86.83 ± 4,60.b

6.87 ± 0.58bcde

1.38 ± 0.10a

1.5

4.83 ± 0.30 cd

4017.0 ± 0177.32cd

121.00 ± 5.5ef

144.66 ± 5.94cd

6.54 ± 0.56bcde

1.37 ± 0.19a

0.75

5.50 ± 0.22 de

4437.16 ± 178.38d

164.16 ± 3.09g

160.33 ± 12.78cde

5.45 ± 0.64bcd

1.76 ± 0.11a

Positif control (inoculum)

/

6.16 ± 0.40 e

7319.66 ± 197.74e

178.16 ± 4.25g

244.66 ± 10.84f

1.24 ± 0.15a

1.32 ± 0.25a

Negatif control

/

00 ± 00a

00 ± 00a

00 ± 00a

00 ± 00a

8.21 ± 0.16e

4.28 ± 0.25b

P value

 

P = 0.01

P = 4.4.10−5

P = 3, 6.10−7

P = 9.10−6

P = 0.13

P = 0.15

  1. Means with the different letters are significantly different according to the Tukey’s test (P≤ 0.05). Values with ± represent the standard errors