| |
Plant height (cm) Samples 1-9 |
crude oil
concentration |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 0% |
8.40a |
7.80a |
|
|
|
|
|
|
|
| 2% |
|
|
8.40a |
4.80c |
4.20c |
2.50d |
6.33b |
4.40c |
3.50cd |
| 3% |
|
|
5.20a |
4.60ab |
3.66ab |
4.50ab |
3.00b |
4.33ab |
3.50b |
| 4% |
|
|
5.50ab |
4.80ab |
5.25ab |
4.00ab |
6.00a |
5.40ab |
3.66b |
a, b, c................ within each row, means with the same letter are not significantly
different p=0.05 |
