Figure 3From: Impact of heterophylly on the sensitivity of Myriophyllum aquaticum biotestsComparison of the average specific growth rates. Shoot length (A) and quantum yield of PSII (B) at the end of the test under atrazine impact. Values are expressed as mean values ± standard deviation. Significant difference of SC (atrazine) calculated by Dunnet’s multiple comparison test. Asterisk denotes p < 0.05; triple asterisk, p < 0.001. C, control; SC, solvent control.Back to article page