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Harvesting more grain zinc of wheat for human health

文献类型： 外文期刊

作者： Chen, Xin-Ping 1 ; Zhang, Yue-Qiang 1 ; Tong, Yi-Ping; Xue, Yan-Fang 1 ; Liu, Dun-Yi 1 ; Zhang, Wei 1 ; Deng, Yan 1 ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China

2.Southwest Univ, Coll Resources & Environm, Chongqing 400716, Peo

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： Increasing grain zinc (Zn) concentration of cereals for minimizing Zn malnutrition in two billion people represents an important global humanitarian challenge. Grain Zn in field-grown wheat at the global scale ranges from 20.4 to 30.5 mg kg(-1), showing a solid gap to the biofortification target for human health (40 mg kg(-1)). Through a group of field experiments, we found that the low grain Zn was not closely linked to historical replacements of varieties during the Green Revolution, but greatly aggravated by phosphorus (P) overuse or insufficient nitrogen (N) application. We also conducted a total of 320-pair plots field experiments and found an average increase of 10.5 mg kg(-1) by foliar Zn application. We conclude that an integrated strategy, including not only Zn-responsive genotypes, but of a similar importance, Zn application and field N and P management, are required to harvest more grain Zn and meanwhile ensure better yield in wheat-dominant areas.

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