Fig. 2. Hematoxylin staining of root apices of wheat genotypes grown in 200 µM CaCl₂ solution, pH 4.5, containing 20 µM AlCl₃. Roots were stained after 24 h of exposure to Al. A, Atlas 66; Ce, Century; Ch, Chisholm; CeT, Century-T; ChT, Chisholm-T.

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