Chromosomal Abnormalities in Allium cepa Induced by Treated Textile Effluents: Spatial and Temporal Variations

Table 5

The spatial variation of phase index at the cell division phases of A. cepa bulbs exposed to composite water samples collected from different sites during the dry season.

	Interphase index (%)	Prophase index (%)	Metaphase index (%)	Anaphase index (%)	Telophase index (%)
Site A	781 ± 4^b 2^a	204 ± 32^a	4 ± 0.4^a	5 ± 0.24^a	6 ± 0.54^a
Site B	750 ± 26^a	233 ± 25^a	6 ± 0.5^b	6 ± 0.24^a	7 ± 0.54^a
Site C	702 ± 45^a	280 ± 24^a	7 ± 05^b	7 ± 0.24^a	7 ± 0.34^a
Site D	651 ± 23^b	326 ± 35^b	10 ± 0.2^c	7 ± 0.14^a	7 ± 0.24^a
Aged tap water	544 ± 56^b	432 ± 32^b	11 ± 0.6^c	6 ± 0.14^a	8 ± 0.24^a

Data are presented as mean ± SD. Mean values indicated by different superscript letters at each column are significantly different from each other (ANOVA, Tukey’s test, , n = 10). Site A: effluent discharge point, site B: 100 m downstream from site A, site C: 200 m downstream from site A, and site D: 100 m upstream from site A.