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- W2022663307 abstract "• 655 field-grown wheat grain samples were investigated in China. • 63–72% of samples were Fe, and 87–88% were Zn inadequate. • Grain Fe and Zn concentration was lower in high-yielding regions. • For each 1.0 mg kg −1 increase in grain Zn, the grain Fe increased by 0.3–0.6 mg kg −1 . • For each 1.0 t ha −1 increase in grain yield, grain Fe and Zn concentrations are reduced by 0.9–2.1 mg kg −1 . Maintaining adequate mineral content in wheat ( Triticum aestivum ) grain is critically important for human nutrition. In this study iron (Fe) and zinc (Zn) concentration, and grain yield of 655 field-grown wheat samples from major wheat production areas of China were investigated from 2009 to 2011. Grain yields were found as high as 5423 and 6565 kg ha −1 for spring and winter wheat, respectively, with a corresponding grain Fe concentration of 48.2 and 45.1 mg kg −1 , and Zn concentration of 30.4 and 30.3 mg kg −1 . Compared to the recommended grain nutrient concentrations, 63% and 72% of the spring and winter wheat samples were considered Fe inadequate, and 88% and 87% were Zn inadequate, respectively. Regionally, grain Fe and Zn concentration was found to be lower in high-yielding regions. Grain Fe concentration was significantly and positively correlated with Zn concentration for both spring and winter wheat. For each 1 mg kg −1 increase in grain Zn, the Fe concentration increased by 0.6 and 0.3 mg kg −1 for spring and winter wheat, respectively. However, the Fe and Zn concentration was significantly and negatively correlated with grain yield: for every 1000 kg ha −1 increase in grain yield, the Fe concentration decreased by 2.1 and 1.3 mg kg −1 for spring and winter wheat, respectively, and the Zn concentration decreased by 0.9 and 1.3 mg kg −1 , respectively. Therefore efforts to simultaneously increase grain yield and Fe and Zn concentration in wheat grain remain a challenging endeavour for wheat farmers." @default.
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- W2022663307 date "2014-02-01" @default.
- W2022663307 modified "2023-10-13" @default.
- W2022663307 title "Grain iron and zinc concentrations of wheat and their relationships to yield in major wheat production areas in China" @default.
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- W2022663307 doi "https://doi.org/10.1016/j.fcr.2013.11.011" @default.
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