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Root exudates and their role in plant nutrition. II. The effect of zinc nutritional status on the root exudates of graminaceous plants



Root exudates and their role in plant nutrition. II. The effect of zinc nutritional status on the root exudates of graminaceous plants



Acta Agriculturae Universitatis Pekinensis 17(4): 67-70



Plants of wheat, barley and maize were grown in nutrient solutions with 0-1 x 10-6 mol Zn/litre. Zn deficiency increased root exudation of amino acids, sugars and phenolic compounds. Root exudates of Zn-deficient wheat plants were able to mobilize Fe from freshly precipitated ferric hydroxide and, when planted in a calcareous soil, they were able to mobilize Zn from it.

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