Table 1.

Phytotoxicity evaluation of biosurfactant at different concentrations on Brassica nigra.

Biosurfactant concentration	Brassica nigra
	Seed germination	Root elongation	Germination index	Vigor index
1.25 mg/mL (1/2 CMC)	100 ± 0.2	105 ± 0.23	105 ± 0.23	1450 ± 74
2.5 mg/mL (CMC)	100 ± 0.1	112 ± 0.22	112 ± 0.21	1475 ± 79
5 mg/mL (2 × CMC)	100 ± 0.15	119 ± 0.15	119 ± 0.19	1525 ± 82
Distilled water	100 ± 0.1	125 ± 0.19	125 ± 0.1	1620 ± 61
SDS (2 mg/mL)	20 ± 0.2	20 ± 0.3	20 ± 0.5	200 ± 58