Soil type |
Day 1 |
Day 2 |
Day 5 |
Day 7 |
Day 14 |
GS (100%)* |
2 (33.33) |
3 (60) |
3 (60) |
4 (100) |
4 (100) |
GS (50%)* |
0(0) |
2 (28.57) |
3 (42.86) |
3 (42.86) |
4 (57.14) |
GS (10%) |
0(0) |
0(0) |
1(14.29) |
2 (28.57) |
3 (42.86) |
NCS |
0(0) |
0(0) |
0(0) |
0 (0) |
0(0) |
CS |
0(0) |
0(0) |
0(0) |
0 (0) |
0 (0) |
*=significantly different at P<0.05
The t-test results comparing means of swollen clitellum in surviving earthworms
exposed to gasoline contaminated soil showed that there was significant (P<0.05)
difference in GS with 100% and 50% mixture compared to the control media (NCS)
where as there was no significant difference in GS with 10% mixture and CS
(P>0.05) compared to the control media. |
