Comparisons of content of chlorophylls (Chls) and carotenoid (Car), ratio of chlorophyll (Chl) a/b and chlorophylls (Chls) / carotenoids (Car) of <i>T</i>. <i>distichum</i> (blank bars) and <i>T</i>. <i>ascendens</i> (diagonal bars) saplings under shallow submergence (SS), moderate submergence (MS) and deep submergence (DS).

<p>Values are means ± S.E. (n = 9). The values with different letters are significantly different at <i>P</i> < 0.05 according to Tukey’s test. Lower case letters are used for <i>T</i>. <i>distichum</i> saplings while upper case letters are used for <i>T</i>. <i>ascendens</i> saplings.