Table 3.
Phytotoxic activity of compounds 1–4, and positive (epi-pyriculol) and negative controls, on pear and lemon samples after 3 days at a concentration of 5 × 10−3 M.
| Compound | Activity 1 on Abate Fetel Pears |
Activity 1 on Decana del Comizio Pears |
Activity 1 on Lemon Fruits |
|---|---|---|---|
| Altertoxin I | 0 | 1 | 2 |
| Alteichin | 1 | 2 | 3 |
| Alternariol | 0 | 0 | 3 |
| Alternariol 4-methyl ether | 0 | 0 | 1 |
| Positive control | 1 | 3 | 3 |
| Negative control | 0 | 0 | 0 |
1 Intensity of necrosis is reported as: 3, severe necrosis; 2, intermediate necrosis; 1, slight necrosis; 0, no necrosis.