| |
Chitosan concentration used (g/l) |
| Fungitested |
0 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
4 |
Average per fungus testeda* |
| FOL |
3.97 |
2.98 |
2.50 |
2.20 |
1.93 |
1.85 |
1.78 |
1.40 |
2.33 e |
| FORL |
4.05 |
3.75 |
3.22 |
2.07 |
1.92 |
1.65 |
1.55 |
1.52 |
2.46 d |
| F. solani |
3.63 |
3.55 |
3.22 |
2.55 |
2.45 |
2.42 |
2.02 |
1.90 |
2.72 c |
| VD |
3.32 |
3.13 |
2.62 |
2.00 |
1.83 |
1.60 |
1.42 |
1.20 |
2.14 f |
| C. coccodes |
3.57 |
3.47 |
3.00 |
2.98 |
2.97 |
2.82 |
2.02 |
1.50 |
2.79 c |
| R. solani |
4.73 |
4.48 |
4.38 |
4.22 |
4.20 |
3.62 |
3.02 |
2.15 |
3.85 a |
| S. sclerotiorum |
4.65 |
4.65 |
4.55 |
0.97 |
0.75 |
0.35 |
0 |
0 |
1.99 f |
| P. aphanidermatum |
4.48 |
4.42 |
3.50 |
2.30 |
1.30 |
0 |
0 |
0 |
2.00 f |
| B. cinerea |
4.72 |
3.83 |
3.70 |
3.18 |
2.87 |
2.23 |
2.10 |
1.05 |
2.96 b |
| A. solani |
4.03 |
3.68 |
3.15 |
1.68 |
1.30 |
1.25 |
1.12 |
0.98 |
2.15 f |
| Average per Chitosan concentrationb* |
4.12 a |
3.80 b |
3.38 c |
2.42 d |
2.15 e |
1.78 f |
1.50 g |
1.17 h |
|
LSD (Fungalpathogens xChitosan concentrations) = 0.388 cm at P ≤ 0.05.
aMean mycelial growth per fungal pathogen for all chitosan concentrations combined.
b Mean mycelial growth per chitosan concentration tested for all fungal pathogens combined.
* For fungal pathogens and chitosan concentrations tested, values (means) followed by the same letter are not significantly different according to Duncan's Multiplue range test at P ≤0.05.
Pathogens were cultured on PDA medium and incubated at 25°C for 1 d (P. aphanidermatum), 2 d (R. solaniand S. sclerotiorum), 3 d (B. cinerea, FOL, FORL and F. solani), 4 d (A. solani and C. coccodes) and 7 d (VD). |
|
