TABLE 3.
Percentages of nematodes trapped in soil samples colonized by S. rugosoannulata
| Straina | Soil level | No. of nematodes
|
% Trapped nematodes | Statisticsb
|
||
|---|---|---|---|---|---|---|
| Recovered | Control | χ2 | P | |||
| CBS681.97 | 1 | 372 | 466 | 25.6 | 63.7 | <0.005 |
| CBS681.97 | 2 | 352 | 448 | 29.6 | 56.4 | <0.005 |
| CBS681.97 | 3 | 283 | 489 | 43.4 | 238.8 | <0.005 |
| CBS101784 | 1 | 386 | 425 | 22.8 | 9.4 | <0.005 |
| CBS101784 | 2 | 341 | 504 | 31.8 | 188.1 | <0.005 |
| CBS101784 | 3 | 303 | 478 | 39.4 | 177.0 | <0.005 |
a
In all cases, the nematode used was P. redivivus and the incubation time was 2 days.
b
χ2 tests (df = 1) comparing frequencies of extracted and trapped nematodes versus control samples.