Page 25 - Volume 6, Issue 1, January 2013

© Benaki Phytopathological Institute
Control of Meloidogyne javanica with N-containing salts on tomato 23
Table 1.
Effect of four nitrogen containing salts and NaCl at four levels of electrical conductivity (EC) on the root galling index and reproduc-
tion factor of the root-knot nematode,
Meloidogyne javanica
, in tomato pot plants and on plant and soil properties.
Salt
Root-Knot nematode
Plant properties
Soil properties
Type
EC
1
(mS/ cm)
GI (0-5)
RF
PDW(g)
RDW(g)
P
Content(g/kg)
K
Content(g/kg )
Protein content
(mg/g)
pH(0-14)
EC
(mS/ cm)
Salinity(ppt)
NH
4 Cl
2
2.31
2cd
3
2.21 d
9.14 c
2.19 bc
1.56 d
34.31 c
165.23 a
6.58 a
2.11 d
1.04 c
4
1.68 d
1.35 d
10.29 b
1.92 bc
1.52 d
34.52 c
56.10 d
6.70 a
2.92 b
1.50 ab
8
1.60 d
1.31 d
8.29 cd
1.90 bc
1.99 b
37.50 b
91.33 c
6.42 a
3.14 a
1.65 a
(NH
4 ) 2 SO
4
2
2.89 cd
2.31 d
11.40 b
2.66 ab 1.86 bc
31.00 d 108.51 bc
6.60 a
1.88 e
0.94 c
4
2.33 cd
1.84 d
12.61 ab
2.35 b
1.41 d
34.44 c
135.40 b 6.51 a
2.20 d
1.12 c
8
2.04 d
1.67 d
12.59 ab
1.67 bc
1.24 e
31.63 d
150.33 a
6.48 a
2.63 bc
1.30 b
KNO
3
2
3.85 b
8.40 b
10.97 ab
1.50 a
1.75 c
37.51 b
91.13 c
6.55 a
2.54 c
1.22 bc
4
3.30 bc
4.35 c
9.74 c
1.73 bc
1.40 d
40.65 a
55.64 d
6.50 a
2.60 bc
1.28 bc
8
3.45 bc
3.60 cd
9.18 c
1.74 bc
1.88 bc
40.50 a
92.75 c
6.55 a
2.70 bc
1.20 bc
NH
4 NO
3
2
3.44 b
4.69 c
12.81 ab
2.21 bc
1.88 bc
30.10 d
134.50 b 6.63 a
2.11 d
1.08 c
4
2.30 cd
3.58 cd
13.01 a
2.28 b
1.75 c
31.23 d
82.34 cd 6.58 a
2.20 d
1.23 bc
8
2.70 cd
3.90 c
14.88 a
1.75 bc
1.88 bc
31.14 d 109.47 bc
6.55 a
2.71 bc
1.42 b
NaCl
2
4.86 a
12.71 a
6.05 e
1.58 cd
1.45 d
34.33 c
78.10 c
6.62 a
2.48 c
1.25 b
4
4.53 a
7.97 b
7.95 de
1.51 cd
1.44 d
37.56 b
91.89 c
6.64 a
2.75 bc
1.54 ab
8
4.01 ab
4.17 c
9.58 c
1.74 bc
1.56 d
31.22 d
60.13 d
6.53 a
3.33 a
1.77 a
Control
0
4.92 a
13.34 a
8.66 cd
1.54 cd
2.17 b
31.24 d 106.25 bc
6.55 a
1.84 e
0.91 c
1EC: electrical conductivity, GI: root galling index, RF= Reproduction factor, PDW: plant dry weight, RDW: root dry weight, P: phosphorus, K: potassium.2Average of 6 replicates per each treatment.3Means within columns followed by the same letters are not significantly different at 0.05 probability level using LSD.