Experiment 1 and 2 half-lives.

<p>D25 = 25°C, dark; D31 = 31°C, dark; L25 = 25°C. MC = mercuric chloride. SE = Standard Error. Significant degradation after 60 and 360 d when p < 0.05 (repeated measures ANOVA, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136391#pone.0136391.s006" target="_blank">S6 Table</a>), NS = not significant.–indicates herbicide not tested. The superscripts a,b represent significantly different slopes in Figs <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136391#pone.0136391.g003" target="_blank">3</a>–<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136391#pone.0136391.g005" target="_blank">5</a> graphs (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136391#pone.0136391.s007" target="_blank">S7 Table</a>), indicating differences in persistence between treatments for that herbicide.</p><p>Experiment 1 and 2 half-lives.