Table 1.
Reproduction of Meloidogyne incognita race 2 on tomato cv. Floradade plants treated with soil amendments of nine plant species at 65 days after inoculation with 3,000 eggs and second-stage juveniles (J2).
| Eggs + J2/root system | |||||
|---|---|---|---|---|---|
| Plant species | 2006 | 2007 | 2008 | 2009 | 2011 |
| Cassia abbreviata | 3 925 b | 2 050 d | − | − | − |
| Cissus cactiformis | 2 500 cd | 1 700 d | 662 c | 1 000 b | 1 688 bc |
| Euphorbia ingens | 2 500 cd | 3 562 b | 862 bc | 788 cd | 1 838 bc |
| Ipomoea kituiensis | 2 575 cd | 3 000 bc | − | − | − |
| Synadenium cupulare | 2 125 d | 2 538 cd | 762 bc | 562 d | 2 588 bc |
| Senna petersiana | 3 125 bc | 2 088 d | − | − | − |
| Urginea sanguinea | 2 775 cd | 3 600 b | − | − | − |
| Maerua angolensis | − | − | 650 c | 688 cd | 6 687 b |
| Tabernaemontana elegans | − | − | 712 c | 650 bcd | 3 588 bc |
| Cucumis myriocarpus | − | − | − | − | 2 550 c |
| Fenamiphos | − | − | 1 050 b | 875 bc | 138 d |
| Untreated control | 12 225 a | 13 238 a | 5 388 a | 5 188 a | 30 063 a |
Table 2.
Reproductive potential (RP) of Meloidogyne incognita race 2 on tomato cv. “Floradade” plants treated with soil amendments at 65 days after inoculation.
| Plant species | 2006 | 2007 | 2008 | 2009 | 2011 |
|---|---|---|---|---|---|
| Cassia abbreviata | 1.3 b | 0.7 bc | − | − | − |
| Cissus cactiformis | 0.8 b | 0.6 c | 0.2 b | 0.2 b | 0.6 bc |
| Euphorbia ingens | 0.8 b | 1.2 b | 0.3 b | 0.2 b | 0.6 bc |
| Ipomoea kituiensis | 0.9 b | 1.0 bc | − | − | − |
| Synadenium cupulare | 0.7 b | 0.8 bc | 0.3 b | 0.1 b | 0.9 bc |
| Senna petersiana | 1.0 b | 0.7 bc | − | − | − |
| Urginea sanguinea | 0.9 b | 1.2 b | − | − | − |
| Maerua angolensis | − | − | 0.2 b | 0.2 b | 2.2 b |
| Tabernaemontana elegans | − | − | 0.2 b | 0.1 b | 1.2 bc |
| Cucumis myriocarpus | − | − | − | − | 0.9 bc |
| Fenamiphos | − | − | 0.4 b | 0.2 b | 0.0 bc |
| Untreated control | 4.1 a | 4.4 a | 1.8 a | 1.4 a | 10.0 a |
| LSD | 0.7165 | 0.6114 | 0.1415 | 0.1273 | 2.0788 |
| P-value | ≤ 0.001 | ≤ 0.001 | ≤ 0.001 | ≤ 0.001 | ≤ 0.001 |
| F-value | 19.97 | 34.84 | 137.72 | 108.15 | 15.20 |
Table 3.
Fresh root and shoot weight of tomato cv. Floradade plants treated with soil amendments of nine plant species at 65 days after inoculation with 3,000 eggs and second-stage juveniles (J2) of Meloidogyne incognita race 2.
| Fresh root weight (g) | Fresh shoot weight (g) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Plant species | 2006 | 2007 | 2008 | 2009 | 2011 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Cassia abbreviata | 2.8 a | 3.0 b | − | − | − | 3.7 d | 3.7 c | − | − | − |
| Cissus cactiformis | 2.9 a | 2.8 bc | 30.2 a | 20.6 a | 14.1 d | 9.2 a | 8.6 a | 9.9 ab | 10.0 a | 83.7 a |
| Euphorbia ingens | 2.0 a | 1.8 d | 23.3 a | 19.0 a | − | 7.2 b | 7.7 a | 8.6 bc | 8.1 abc | 80.5 a |
| Ipomoea kituiensis | 3.2 a | 4.6 a | − | − | 15.2 d | 3.3 d | 3.7 c | − | − | − |
| Synadenium cupulare | 2.4 a | 2.1 cd | 22.1 bc | 20.2 a | 19.2 ab | 5.3 c | 6.4 b | 7.6 c | 9.2 ab | 70.2 c |
| Senna petersiana | 2.6 a | 1.8 d | − | − | − | 4.0 d | 3.8 c | − | − | − |
| Urginea sanguinea | 2.5 a | 2.5 bcd | − | − | − | 4.0 d | 3.9 c | − | − | − |
| Maerua angolensis | − | − | 25.3 b | 14.9 b | 17.6 bc | − | − | 8.7 bc | 7.1 bc | 81.5 a |
| Tabernaemontana elegans | − | − | 30.8 a | 19.5 a | 15.1 d | − | − | 10.0 a | 9.8 a | 79.2 ab |
| Cucumis myriocarpus | − | − | − | − | 20.0 a | − | − | − | − | 68.1 cd |
| Fenamiphos | − | − | 30.7 a | 22.3 a | 15.9 cd | − | − | 10.0 a | 10.4 a | 73.3 bc |
| Untreated control | 2.2 a | 1.8 d | 21.6 c | 14.6 b | 11.2 e | 3.4 d | 4.1 c | 7.9 c | 6.0 c | 61.5 d |