Table 4: Mitotic index and percentage of mitosis stages and mitotic aberrations in the root tip cells of A. cepa treated with organic extract derived at site 2.

Monthµg/mLMitotic index% P.% M.% A.% T.% T.A.% MCN% Bridge% Break% Lagging

NC0.08 ± 0.034.501.900.401.100.300.180.070.000.05
50.07 ± 0.033.201.600.90*1.800.570.250.170.000.15
August100.04 ± 0.01*1.80*0.800.400.600.410.030.060.160.16
150.04 ± 0.01*0.33*3.260.560.360.75*0.030.23*0.26*0.23
200.04 ± 0.02*2.531.230.460.760.190.000.000.160.03
250.04 ± 0.01*0.10*1.400.90*1.400.700.000.50*0.100.10
NC0.02 ± 0.010.800.600.200.500.150.000.050.050.05
50.04 ± 0.021.101.300.800.500.540.040.200.080.22
September100.07 ± 0.032.002.50*1.50*1.501.30*0.100.400.400.40
150.01 ± 0.010.500.300.300.01*0.600.400.050.050.10
200.06 ± 0.052.002.001.001.40 1.08*0.060.330.260.43
250.01 ± 0.010.500.500.100.300.280.030.060.160.03
NC0.05 ± 0.023.900.500.200.300.300.100.000.100.10
50.05 ± 0.012.001.500.701.300.670.000.17*0.300.20
October100.07 ± 0.011.701.800.803.20*1.050.000.100.750.20
150.00 ± 0.000.000.000.000.000.000.000.000.000.00
200.00 ± 0.000.000.000.000.000.030.000.030.000.00
250.00 ± 0.000.000.000.000.000.000.000.000.000.00

P.: prophase; M.: metaphase; A.: anaphase; T.: telophase; T.A.: total abnormalities; MCN.: micronucleus; NC.: negative control—DMSO; positive control = benzo(a)pyrene 10 µg/mL (mitotic index = 0.00*; % T.A. = 0.20; % bridge = 0.10; % break =0.10) * ≤ 0.05.