Abstract
River water polluted by factory effluents was tested for its cytological effects on plants. Growing plants of Ornithogalum virens were irrigated with such water and the treatment was found to produce many meiotic irregularities. The percentage of abnormalities increased from 10.2 in the control to 35.96 in the case of plants treated with undiluted polluted water, and the pollen sterility increased from 23.3% to 64.8%. Growing onion root tips when treated with polluted water produced extensive chromosome breakage, stickiness of chromosomes, and other mitotic abnormalities.
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