Table 2.
Effect of Bt rice on longevity, oviposition period and fecundity of S. zeamais adults.
| Generation | Parameter | Rice cultivars | p-value | |
|---|---|---|---|---|
| Non-GM rice | Bt rice | |||
| 1 | Longevity (d) | 107.18 ± 8.74* | 111.26 ± 9.67 | 0.96 |
| Oviposition period (d) | 85.64 ± 5.26 | 86.72 ± 4.98 | 0.87 | |
| Fecundity** | 276.34 ± 12.92 | 281.17 ± 12.36 | 0.79 | |
| 5 | Longevity (d) | 109.53 ± 9.51 | 105.45 ± 8.92 | 0.83 |
| Oviposition period (d) | 86.22 ± 6.82 | 87.19 ± 5.25 | 0.60 | |
| Fecundity | 275.49 ± 11.33 | 273.51 ± 10.94 | 0.88 | |
| 10 | Longevity (d) | 108.76 ± 8.36 | 107.64 ± 9.27 | 0.34 |
| Oviposition period (d) | 84.96 ± 6.34 | 85.17 ± 5.67 | 0.37 | |
| Fecundity | 279.26 ± 12.45 | 275.38 ± 11.41 | 0.88 | |
| 15 | Longevity (d) | 112.71 ± 9.94 | 109.34 ± 7.69 | 0.50 |
| Oviposition period (d) | 83.93 ± 6.84 | 86.03 ± 5.43 | 0.52 | |
| Fecundity | 272.58 ± 13.58 | 278.43 ± 10.27 | 0.41 | |
| 20 | Longevity (d) | 106.83 ± 8.19 | 108.39 ± 9.64 | 0.81 |
| Oviposition period (d) | 85.11 ± 5.69 | 86.25 ± 5.31 | 0.88 | |
| Fecundity | 280.11 ± 12.37 | 274.19 ± 10.59 | 0.85 | |
| 25 | Longevity (d) | 108.47 ± 8.35 | 110.51 ± 7.97 | 0.85 |
| Oviposition period (d) | 87.04 ± 5.48 | 85.49 ± 6.07 | 0.80 | |
| Fecundity | 272.97 ± 11.67 | 279.65 ± 12.62 | 0.71 | |
Note: *All values are means ± standard deviations.
**Fecundity is presented by number of eggs laid by each female in 10 days starting from the first egg-laying.