Research Article

Increasing Nutrient Solution pH Alleviated Aluminum-Induced Inhibition of Growth and Impairment of Photosynthetic Electron Transport Chain in Citrus sinensis Seedlings

Figure 11

PCA loading plots of all physiological parameters for (a) pH 4.0-, (b) pH 3.5-, (c) pH 3.0-, and (d) pH 2.5-treated C. sinensis seedlings submitted to 0 and 1 mM Al.

(a) pH 4.0-treated seedlings
(b) pH 3.5-treated seedlings
(c) pH 3.0-treated seedlings
(d) pH 2.5-treated seedlings