Concentration (%)

Species

0.0

0.5

1.0

1.5

2. 0

C. ambrosioides L.

0.00 ± 0.00b

5.00 ± 5.77b

15.00 ± 5.77ab

23.75 ± 9.46a

25.00 ± 19.14a

P. bippinatifidum

0.00 ± 0.00b

2.50 ± 5.00b

12.00 ± 12.58ab

15.00 ± 12.91a

22.00 ± 18.93a