Table 1.

The average root numbers and root lengths in controls and treatment concentrations.

Treatment groups	Concentrations	Average root number ± SD	Average root lengths (cm) ± SD
Negative control	Tap water	37.6 ± 4.03	3.58 ± 0.61
Positive Control (EMS)	2 × 10−2 M	28.6 ± 4.72*	2.74 ± 0.42*
Inula1	2.5 mg/ml	22.0 ± 5.52*	3.36 ± 0.52
Inula2	5 mg/ml	20.6 ± 2.30*	3.12 ± 0.33
Inula3	10 mg/ml	19.2 ± 5.97*	2.82 ± 0.53*

* P < .05 in One Way ANOVA.