Table 7.
Hatchability (%) of M. incognita and G. rostochiensis eggs after a 1- or 2-week exposure of egg masses and cysts, respectively, to 125–1000 µg mL−1 solutions of the saponin extract from five different Medicago species (means ± SE).
| Concentration | 1 week | 2 weeks | ||
|---|---|---|---|---|
| (µg mL−1) | M. incognita | G. rostochiensis | M. incognita | G. rostochiensis |
| M. heyniana | ||||
| 125 | 47.0 ± 2.1 | 33.0 ± 0.6 | 38.7 ± 2.2 | 35.7 ± 1.2 |
| 250 | 33.0 ± 1.0 | 39.3 ± 1.2 | 26.0 ± 1.5 | 43.3 ± 0.9 |
| 500 | 24.3 ± 0.9 | 42.0 ± 2.1 | 17.7 ± 1.2 | 48.0 ± 2.1 |
| 1000 | 24.0 ± 1.1 | 46.7 ± 3.2 | 15.0 ± 0.6 | 69.3 ± 2.2 |
| M. hybrida | ||||
| 125 | 49.0 ± 1.5 | 44.0 ± 1.5 | 32.0 ± 1.2 | 51.0 ± 2.5 |
| 250 | 39.7 ± 2.3 | 59.0 ± 1.0 | 23.3 ± 0.9 | 61.7 ± 1.8 |
| 500 | 28.7 ± 1.4 | 71.7 ± 0.7 | 18.7 ± 0.7 | 85.0 ± 1.7 |
| 1000 | 18.3 ± 0.9 | 80.0 ± 9.3 | 16.0 ± 0.6 | 95.7 ± 1.3 |
| M. lupulina | ||||
| 125 | 51.7 ± 1.4 | 36.3 ± 0.3 | 42.3 ± 0.7 | 37.3 ± 0.3 |
| 250 | 46.7 ± 0.3 | 47.3 ± 0.7 | 38.0 ± 1.0 | 49.0 ± 0.0 |
| 500 | 34.7 ± 0.3 | 55.7 ± 0.9 | 26.7 ± 0.7 | 60.7 ± 3.5 |
| 1000 | 20.3 ± 0.9 | 80.7 ± 0.9 | 10.0 ± 0.6 | 93.3 ± 2.0 |
| M. murex | ||||
| 125 | 51.0 ± 1.0 | 38.3 ± 0.9 | 35.3 ± 1.8 | 45.3 ± 2.0 |
| 250 | 41.7 ± 1.2 | 53.0 ± 2.3 | 28.7 ± 0.9 | 61.3 ± 0.9 |
| 500 | 33.7 ± 0.9 | 60.0 ± 2.0 | 23.3 ± 0.7 | 72.3 ± 0.3 |
| 1000 | 21.7 ± 0.7 | 67.7 ± 1.9 | 19.0 ± 1.0 | 93.3 ± 3.3 |
| M. truncatula | ||||
| 125 | 52.0 ± 2.1 | 39.3 ± 1.8 | 39.0 ± 0.6 | 45.3 ± 1.4 |
| 250 | 45.3 ± 0.3 | 46.7 ± 2.2 | 34.0 ± 1.2 | 55.7 ± 1.8 |
| 500 | 39.7 ± 1.5 | 52.0 ± 4.5 | 23.0 ± 1.5 | 62.7 ± 0.9 |
| 1000 | 39.0 ±1.2 | 71.0 ± 2.1 | 21.3 ± 0.7 | 96.7 ± 1.2 |
| Oxamyl (1 mL L−1) | 29.3 ± 1.2 | 25.3 ± 0.9 | 20.0 ± 1.2 | 15.7 ± 0.9 |
| Control | 56.3 ± 0.7 | 35.7 ± 1.8 | 56.3 ± 0.7 | 35.7 ± 1.8 |
| LSD 0.05 | 3.6 | 7.6 | 3.1 | 5.1 |