Effects of copper on photosynthesis activity and chlorophyll-a content of chaetoceros radicans schutt
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Chaetoceros radicans was selected to test the effect of copper concentrations of 0.001, 0.005, 0.01, 0.05, 0.1 and 0.5 ppm for 6 days on the photosynthetic activity and chlorophyll-a content under laboratory conditions. The photosynthetic activity decreased with time of exposure and copper concentration. The control photosynthetic activity reached a maximum value at 120 hours and chlorophyll-a at 72 hours. Chaetoceros radicans cultures treated by copper showed a slight decrease in its photosynthetic activity and chlorophyll-a at levels 0.001 and 0.005 ppm, while they rapidly decreased at higher copper concentrations......
JournalBulletin of High Institute of Public Health
PublisherHigh Institute of Public Health
CitationBulletin of High Institute of Public Health, 25 (2), p. 439-446
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