In situ studies on the plants exposed to industrial and agricultural pollution in the vicinity of Karachi I: Effects on meiosis
2004
Rahimi, S. | Khatoon, S. (Karachi Univ. (Pakistan). Dept. of Botany)
Thirty specimens of 14 species belonging to 11 families in and around Karachi were collected. These localities included agricultural and industrial polluted sites. The same species were also collected from unpolluted localities serving as controls. The specimens were studied for their meiotic behavior, meiotic product and pollen fertility. The percentage of meiotic abnormalities in the specimens from polluted localities was significantly higher as compared to the controls. The difference was found to be significant (p at the most 0.05). The specimens from polluted localities showed a greater tendency to produce diads as compared to controls. However, with respect to pollen fertility substantial differences were not observed.
显示更多 [+] 显示较少 [-]