Effect of electromagnetic fields (created by high tension lines) on some indigenous species -VII. Mimosaceae, Molluginaceae, Nyctaginaceae and Papilionaceae
Zaidi, S. (Federal Urdu Univ. of Arts, Science and Technology, Karachi (Pakistan). Dept. of Botany) | Khatoon, S. (Karachi Univ. (Pakistan). Dept. of Botany) | Zohair, S. (Karachi Univ. (Pakistan). Dept. of Botany) | Imran, M.
Effects of electromagnetic fields (EMFs) (created by high tension wires) were studied in 33 specimens belonging to 12 species of 4 angiosperm families. In the study genotoxic effects of EMFs were studied on these plants. The aspects covered in the present study include PMC meiosis, meiotic products and pollen viability. The plants were collected from localities having 132, 220 and 500 kilo volt high tension wires and controls were collected from localities free from any type of electric wires. A number of meiotic abnormalities including stickiness, pairing disturbances (univalent and multivalent), precocious chromosomes, laggards, bridges and multipolar divisions were observed both in test and controls; but these abnormalities were found to be significantly higher in test (exposed to EMFs) plants as compared to their controls (unexposed to EMFs).The test plants also showed abnormal meiotic products (dyads and hypertetrads) in some specimens. Besides this the percentages of sterile pollen grains were also significantly higher in test plants. These abnormalities and pollen sterility showed a direct correlation with the increase in voltage i.e. as the voltages increases these abnormalities and pollen sterility also increases.
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Эту запись предоставил National Agricultural Research Centre