Table 1.
Population parameters of R. padi as affected by ConA in the diet (values are means ± SD)
| Parameters | Control |
Lectin ConA
|
|||
|---|---|---|---|---|---|
| 50 (μg/cm3) | 500 (μg/cm 3 ) | 1,000 (μg/cm 3 ) | 1,500 (μg/cm 3 ) | ||
| Mean daily fecundity | 1.43 ± 0.08 | 1.39 ± 0.01 NS | 1.29 ± 0.007** | .23 ± 0.01** | 1.16 ± 0.02*** |
| Prereproductive period (d) | 6.60 ± 0.94 | 7.00 ± 0.00 NS | 7.80 ± 0.44** | 8.60 ± 0.54*** | 11.20 ± 0.44*** |
| Intrinsic rate of natural increase ( rm ) | 0.25 ± 0.01 | 0.24 ± 0.00 NS | 0.22 ± 0.005** | 0.20 ± 0.005*** | 0.17 ± 0.00*** |
| Average time of generation development ( T ) | 8.92 ± 0.79 | 9.46 ± 0.00 NS | 10.54 ± 0.60** | 11.62 ± 0.73*** | 15.13 ± 0.60*** |
NS, not significant.
Significance of differences from the control values **P < 0.01; ***P < 0.001 (Student’s t -test) ( n = 10).