Assessment of Cytogenotoxicity of Plastic Industrial Effluent Using Allium cepa Root Tip Cells

Table 2

Mean root length of Allium cepa exposed to different concentrations of plastic industrial effluent at 96 hrs.

Concentrations	R.L. (cm)	N.R.	% R.L.	Root G.I. (%)	EC50
Control	^a	^a	100	0
15%	^b	^b	88	12
30%	^c	^c	73	27	48%
45%	^d	^d	55	45
60%	^e	^e	36	64
LSD	0.73	1.41

Significant differences between the means are indicated by different letters along the columns (). R.L.: root length; N.R.: number of roots; G.I.: growth inhibition; EC₅₀: effective concentration at 50%.