Table 1.
Effects of varying photoperiodic conditions on duration (days) of development of Culex quinquefasciatus mosquito.
| Photoperiodic levels (light:dark hours) | Larval Instars |
Total larval duration | Pupal stage duration | Total immature duration | |||
|---|---|---|---|---|---|---|---|
| L1 | L2 | L3 | L4 | ||||
| 0:24 | 0.79 ± 0.14Aa | 1.15 ± 0.12Ac | 1.04 ± 0.02Ab | 1.81 ± 0.09Ad | 4.79 ± 0.09A | 0.85 ± 0.02A | 5.64 ± 0.11A |
| 6:18 | 1.11 ± 0.17Bb | 1.29 ± 0.23Ac | 1.08 ± 0.21Aa | 2.28 ± 0.26Bd | 5.77 ± 0.28B | 0.84 ± 0.01A | 6.60 ± 0.28B |
| 12:12 | 1.30 ± 0.07Ca | 1.55 ± 0.19Bb | 1.75 ± 0.30Bc | 2.57 ± 0.20BCd | 7.18 ± 0.28C | 1.03 ± 0.16B | 8.21 ± 0.52C |
| Control (13:11) | 1.20 ± 0.03Ca | 1.59 ± 0.27Bb | 1.86 ± 0.14Bc | 2.53 ± 0.25BCd | 7.19 ± 0.28C | 1.06 ± 0.16B | 8.25 ± 0.34C |
| 18:6 | 1.90 ± 0.12Da | 2.38 ± 0.16Cb | 2.62 ± 0.37Cc | 2.79 ± 0.34Cd | 9.69 ± 0.41D | 1.03 ± 0.08B | 10.73 ± 0.46D |
| 24:0 | 2.10 ± 0.05Da | 2.66 ± 0.25Db | 3.31 ± 0.30Dc | 4.06 ± 0.41Dd | 12.14 ± 0.36E | 1.39 ± 0.16C | 13.52 ± 0.35E |
Within a column, means (±SD) followed by same capital letter are not significantly different at P < .05 according to Duncan multiple range test following analysis of variance (ANOVA). Within a line, means (±SD) followed by same small letter are not significantly different at P < .05 according to Duncan multiple range test following ANOVA.