Chlorophyll (Chl) <i>a</i> and <i>b</i> contents, ratio <i>a/b</i> and gas exchange parameter (A_CO2) measured in fully developed leaves of <i>Citrus aurantium</i> seedlings.

<p>Plants were grown for 21 days in Fe-sufficient (+Fe) or Fe-deficient (-Fe) nutrient solutions with the non-stressed (Ct) or the flooding treatment (S).</p><p>¹Values are the means of six independent plants per treatment (n = 6). For a comparison of the means, an ANOVA followed by the Fisher´s least significant differences (LSD) test, calculated at the 95% confidence level, was performed. Different letters in the same row indicate significant differences between the different genotypes and treatments. Levels of significance were represented by <i>P <</i> 0.05 (*), <i>P <</i> 0.01 (**), <i>P <</i> 0.001 (***) and ns (non-significant).</p><p>Chlorophyll (Chl) <i>a</i> and <i>b</i> contents, ratio <i>a/b</i> and gas exchange parameter (A_CO2) measured in fully developed leaves of <i>Citrus aurantium</i> seedlings.