| |
Plant height (cm) Samples 1-9 |
crude oil
concentration |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 0% |
17.90a |
16.7a |
|
|
|
|
|
|
|
| 2% |
|
|
13.66a |
9.06c |
10.20bc |
7.02d |
11.25b |
10.90b |
7.15d |
| 3% |
|
|
9.80a |
9.06a |
10.00a |
9.44a |
9.90a |
9.66a |
7.20b |
| 4% |
|
|
10.00abc |
7.50c |
11.50a |
7.75c |
10.98ab |
10.76ab |
8.60bc |
a, b, c................ within each row, means with the same letter are not significantly different p=0.05 |
