Characterization of Complexes Synthesized Using Schiff Base Ligands and Their Screening for Toxicity Two Fungal and One Bacterial Species on Rice Pathogens
Table 20
Evaluation of fungicidal property of Schiff bases and metal complexes in vitro.
S. number
Chemical complex
Rhizoctonia solani (PDA medium), average %
inhibition of growth after 72 hrs; poisoned food technique
Acrocylindrium oryzae (PA liquid) average %
inhibition of growth after 48 hrs; liquid broth method
Xanthomonas oryzae (Hayward’s medium) average %
inhibition of growth after 8 days;
inhibition zone technique
concentration in ppm
concentration in ppm
concentration in ppm
1000
500
250
1000
500
250
1000
500
250
1
BLANK
-
-
-
246
245
246
-
-
-
2
DITHANE-M-45
100
100
80
nil
200
240
55
50
48
3
L1-BHFH
30
16.66
-
nil
nil
2
12
- -
- -
4
[Cu(BHFH)]2
-
- -
- -
190
200
240
5
- -
- -
5
[Co(BHFH)(H2O)Cl]2
-
- -
- -
170
150
240
8
- -
- -
6
[Ni(BHFH)]2
45.5
15
-
5
28
130
11.2
- -
- -
7
[Fe(BHFH)Cl2]2
62.2
34.4
10
55
100
220
22.3
- -
- -
8
[Mn(BHFH)(H2O)Cl]2
95.2
67.2
40
25
76
130
23
- -
- -
9
[VO(BHFH)Cl]2
100
69.66
50
nil
nil
12
20
- -
- -
10
L2-BHEH
20
6.6
-
nil
nil
2
3
- -
- -
11
[Cu(BHEH)Cl]
25
21.1
10
150
200
245
8
- -
- -
12
[Co(BHEH)2]
-
- -
- -
175
190
225
16.7
- -
- -
13
[Ni(BHEH)2]
27
- -
- -
nil
nil
nil
30
- -
- -
14
[Fe(BHEH)(H2O)Cl)]2
35
20
-
100
155
200
15
- -
- -
15
[Mn(BHEH)2]
82
50
50
96
100
150
19
- -
- -
16
[VO(BHEH)Cl]2
100
45
40
nil
nil
50
20
- -
- -
17
L3-HAEP
50
20
-
5
5
5
10
- -
- -
18
[Cu(HAEP)]2
-
- -
- -
245
- -
- -
- -
- -
- -
19
[Co(HAEP)(H2O)2]2
-
- -
- -
240
- -
- -
- -
- -
- -
20
[Ni(HAEP)2]
-
- -
- -
185
- -
- -
- -
- -
- -
21
[Fe(HAEP)(H2O)Cl]2
-
- -
- -
200
- -
- -
- -
- -
- -
22
[Cr(HAEP)(H2O)Cl]2
-
- -
- -
242
- -
- -
- -
- -
- -
23
[VO(HAEP)(H2O)2]
-
- -
- -
245
- -
- -
2
- -
- -
24
L4-BFH
32
20
-
70
100
240
20
- -
- -
25
[Cr(BFH)(H2O)Cl2]2
-
- -
- -
150
200
240
22
- -
- -
26
[VO(BFH)2(H2O)]
98
69.66
50
125
150
200
25
- -
- -
27
[Cr(BHDH)Cl]2
15.5
5.12
5
190
- -
- -
15
- -
- -
28
[VO(BHDH)(H2O)]
32.2
15
-
150
198
240
20
- -
- -
29
[Cr(DHA)3]
28.5
- -
- -
200
240
245
15
- -
- -
30
[VO(DHA)2(H2O)]
50
30
15
170
200
238
18
- -
- -
- indicates negative effect; - - indicates that the compound is not screened.
