Table 2.
Variance analysis of factors influencing PNOD activity induced by two insecticides on Cydia pomonella larvae (between-subjects effects).
| Source | d.f.a | Mean square | F | pb |
|---|---|---|---|---|
| Chlorpyrifos | ||||
| Insecticide exposure | 1 | 10.694 | 22.775 | 0.000 |
| Exposure time | 7 | 44.106 | 99.932 | 0.000 |
| Insecticide exposure × exposure time | 7 | 9.781 | 20.831 | 0.000 |
| Error | 80 | 0.470 | ||
| Lambda-cyhalothrin | ||||
| Insecticide exposure | 1 | 288.956 | 745.795 | 0.000 |
| Exposure time | 7 | 138.226 | 150.066 | 0.000 |
| Insecticide exposure × exposure time | 7 | 44.372 | 47.087 | 0.000 |
| Error | 80 | 0.921 |
a
Degree of freedom;
b
Distinctness index, p < 0.05 indicates that there are significantly different.