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Average relative amounts (%) of iron (Fe) species, Fe ligands and Fe, phosphorus (P) and sulphur (S) concentration in the grain of wheat (Triticum aestivum L.) cultivars Vulkan and Soissons (awned wheat cultivars) and Katarina and Super Zitarka (awnletted wheat cultivars) (a,c,e) and in grain tissues (b,d,f). Phosphorus, Fe and S concentrations are in mg·kg−1 dry weight (e) or fresh weight (f). In (b,d,f) results indicate average across all four cultivars.
