|
Tested extracts
|
2 weeks
|
4 weeks
|
6 weeks
|
8 weeks
|
10 weeks
|
12 weeks
|
|---|
|
Mean ± SE
|
|---|
|
Mint
|
0 f
|
0 f
|
0 f
|
1.80 ± 0.68 f g
|
4.70 ± 1.80 g
|
5.33 ± 1.60 h
|
|
Coriander
|
0 f
|
0 f
|
0 f
|
3.70 ± 0.0.29 f
|
4.30 ± 0.14 g
|
4.45 ± 0.18 h
|
|
Zygophyllum
|
0 f
|
0 f
|
0 f
|
3.17 ± 1.80 f
|
3.44 ± 0.27 g
|
4.11 ± 0.46 h
|
|
Arnoglosse
|
4.67 ± 0.33 e
|
6.33 ± 0.67 e
|
7.33 ± 1.45 e
|
7.33 ± 1.45 e
|
8.53 ± 1.99 f
|
9.66 ± 1.60 f
|
|
Harmel
|
0 f
|
0 f
|
0 f
|
3.97 ± 0.70 f
|
4.70 ± 0.79 g
|
5.52 ± 0.60 h
|
|
Solanum
|
0 f
|
0 f
|
0 f
|
0 g
|
6.50 ± 0.40f g
|
6.70 ± 0.32 gh
|
|
Basil
|
5.93 ± 0.37 e
|
6.73 ± 0.27 e
|
6.73 ± 0.27 e
|
8.17 ± 0.99 e
|
8.93 ± 0.68 f
|
9.04 ± 0.76 fg
|
|
Colocynth
|
12.00 ± 1.15 d
|
13.00 ± 1.53 d
|
13.33 ± 1.67 d
|
13.33 ± 1.67 d
|
14.80 ± 2.50 e
|
15.74 ± 1.58 e
|
|
Jasmine
|
17.67 ± 0.33 c
|
18.30 ± 0.33 c
|
18.66 ± 0.33 c
|
19.56 ± 0.64 c
|
19.70 ± 0.61d
|
19.70 ± 0.60 d
|
|
Geranium
|
18.67 ± 0.33 c
|
19.67 ± 0.33 c
|
20.00 ± 0.00 c
|
20.86 ± 0.86 c
|
21.78 ± 0.89 cd
|
22.44 ± 0.22 c
|
|
Senna
|
22.33 ± 0.88 b
|
23.00 ± 1.16 b
|
23.67 ± 0.67 b
|
23.67 ± 0.67 b
|
24.03 ± 0.49 bc
|
24.03 ± 0.48 bc
|
|
Chamomile
|
23.05 ± 0.76 b
|
24.17 ± 1.01 b
|
25.10 ± 0.59 b
|
25.10 ± 0.59 b
|
25.43 ± 0.72 b
|
25.53 ± 0.62 b
|
|
Talcum powder
|
28.00 ± 0.33 a
|
28.36 ± 0.33 a
|
29.33 ± 0.30 a
|
29.77 ± 0.23 a
|
29.77 ± 0.23 a
|
29.40 ± 0.29 a
|
|
Control
|
30.00 ± 0.00 a
|
30.00 ± 0.00 a
|
30.00 ± 0.00 a
|
30.00 ± 0.00 a
|
30.00 ± 0.00 a
|
30.00 ± 0.00 a
|
|
LSD 0.05
|
1.79
|
2.33
|
2.42
|
2.33
|
3.19
|
2.49
|
|
LSD 0.01
|
2.46
|
3.19
|
3.32
|
3.24
|
4.31
|
3.34
|
- The maximum possible index was thus 30 tunnels/tuber, if all tubers fall into the sever category according Fenemore (1980)
