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Micro-XRF maps of cross-sectioned seeds of A. kotschyi acc. 3790 (A), T. aestivum L. IITR26 (B), T. aestivum Cv. WH291 (C), and T. aestivum Cv. WL711 (D). The insets mark the regions of crease and aleurone for which magnified XRF maps are shown. The colour scale represents relative intensity of fluorescence, with blue and red corresponding to the lowest and highest accumulation of iron, respectively. Intensities of iron K-α line are expressed in counts s–1 mA–1.
