Table 3: 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 1.

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

NC0.03 ± 0.001.400.900.501.100.070.050.000.000.02
50.04 ± 0.013.20*0.800.600.300.120.020.020.000.08
August100.02 ± 0.00*0.20*1.000.401.000.350.200.100.000.05
150.01 ± 0.01*0.03*0.300.100.20*0.550.550.000.000.00
200.01 ± 0.01*0.02*0.10*0.03*0.20*0.050.030.000.020.00
250.00 ± 0.00*0.00*0.00*0.00*0.00*0.000.000.000.000.00
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 ± 0.010.500.300.301.300.600.400.050.050.10
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
NC0.02 ± 0.001.400.400.000.000.100.080.000.020.00
50.11 ± 0.057.000.700.402.600.100.000.000.070.03
October100.05 ± 0.052.700.700.501.600.180.000.030.100.05
150.06 ± 0.042.601.300.302.300.29*0.070.050.12*0.05
200.05 ± 0.032.501.100.400.800.100.000.020.030.05
250.06 ± 0.033.201.000.501.000.310.030.000.180.10

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; % MCN = 0.16; % bridge = 0.04) * ≤ 0.05.