Table 1.
Summary of ANOVAs exploring the factors affecting five fitness components of Cry1Ac resistant and revertant susceptible populations of P. xylostella. (Two insect populations (Karak and Keluang) and two host-plant species (B. oleracea and B. pekinensis) were used in this experiment, n=9–10 plants per treatment. Key to significance levels: *p<0.05; **p<0.01; ***p<0.001.)
| fitness component | larval growth rate | survival till late larva | development time | pupal weight | survival till pupation | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| source of variation | d.f. | F | d.f. | F | d.f. | F | d.f. | F | d.f. | F |
| plant species | 1 | 165.1*** | 1 | 55.6*** | 1 | 312.4*** | 1 | 37.9*** | 1 | 144.5*** |
| population | 1 | 42.5*** | 1 | 4.45* | 1 | 10.75** | 1 | 13.0*** | 1 | 22.7*** |
| resistance | 1 | 8.10** | 1 | 0.09 | 1 | 4.41* | 1 | 0.44 | 1 | 0.09 |
| plant×popn | 1 | 0.62 | 1 | 26.0*** | 1 | 0.88 | 1 | 9.76** | 1 | 56.1*** |
| plant×resist | 1 | 0.02 | 1 | 0.005 | 1 | 5.27* | 1 | 0.002 | 1 | 0.01 |
| resist×popn | 1 | 9.27** | 1 | 0.18 | 1 | 0.07 | 1 | 1.26 | 1 | 2.66 |
| resist×plant×popn | 1 | 0.001 | 1 | 1.84 | 1 | 0.01 | 1 | 1.82 | 1 | 4.07* |
| residuals | 73 | 77 | 70 | 68 | 71 | |||||