Table 4.
Corrected cumulative mortality (mean ± SE) of Callosobruchus maculatus adults in cowpea seeds treated with fractionated root extracts of Gnidia kraussiana
DAI | Mortality | F 3,12 | |||
---|---|---|---|---|---|
NSO | Hexane fraction | Acetone fraction | Methanol fraction | ||
1 g/kg | |||||
1 | 0.0 ± 0.0 | 11.4 ± 4.3 | 6.3 ± 4.7 | 3.8 ± 1.3 | 2.30ns |
2 | 2.6 ± 1.5B | 17.8 ± 5.1A | 20.4 ± 2.7A | 7.6 ± 1.4AB | 8.85** |
3 | 4.0 ± 2.5B | 37.5 ± 5.3A | 29.8 ± 1.6A | 14.3 ± 3.6B | 18.19*** |
4 | 5.4 ± 2.2C | 54.4 ± 7.4A | 37.1 ± 2.9AB | 20.1 ± 2.1B | 24.60*** |
5 | 8.4 ± 2.8D | 66.0 ± 5.6A | 43.8 ± 4.0B | 26.7 ± 1.1C | 43.06*** |
6 | 8.5 ± 2.8D | 73.0 ± 5.3A | 55.07 ± 4.7B | 29.0 ± 0.4C | 55.58*** |
7 | 9.0 ± 1.8C | 75.8 ± 3.3A | 67.2 ± 6.1A | 35.3 ± 2.1B | 67.06*** |
5 g/kg | |||||
1 | 5.1 ± 2.0B | 51.0 ± 4.5A | 10.1 ± 6.8B | 10.1 ± 0.1B | 36.71*** |
2 | 7.8 ± 3.4C | 82.1 ± 3.2A | 26.8 ± 3.7B | 13.9 ± 2.3BC | 112.00*** |
3 | 10.8 ± 2.3C | 93.4 ± 4.0A | 36.4 ± 2.1B | 34.2 ± 1.1B | 187.20*** |
4 | 13.7 ± 3.5C | 94.6 ± 3.1A | 43.9 ± 2.3B | 40.9 ± 1.3B | 154.69*** |
5 | 19.3 ± 5.0C | 98.5 ± 1.5A | 50.7 ± 2.4B | 46.5 ± 1.3B | 124.43*** |
6 | 25.4 ± 3.7C | 100.0 ± 0.0A | 69.1 ± 3.3B | 53.6 ± 2.5C | 202.89*** |
7 | 35.8 ± 2.2D | 100.0 ± 0.0A | 77.7 ± 3.6B | 60.1 ± 2.3C | 198.96*** |
DAI, day after infestation.
The untreated control had the no mortality. Means within the same line followed, respectively, by the same letter(s) did not differ significantly (P < 0.05; Tukey’s test).