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| Environmental factors of allelopathic effects against algae by response surface methodology |
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Abstract Response surface methodology (RSM) was used to optimize three environmental factors (temperature, light intensity and total dissolved solids) of allelopathic effects of submerged macrophytes against Chlorella vulgaris. By analyzing the response surface plots, the optimum ranges of the relatively inhibitory rate of algal cell number lied in 42℃, 2683lx and total salt content of 3706mg/L. The significance level of the RSM model was less than 0.0001 and the correlation coefficient was 0.9800, which indicating the model was satisfactory and accurate.
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Received: 07 September 2009
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