Nutritional status of people can be improved by enhancing zinc (Zn) and iron (Fe) content in cereals used as staple mainly in poor resource countries. Zinc and Fe were applied through soil and foliage in a study to biofortify wheat grains. Foliar application of both micronutrients increased the growth and grain vigor as compared to soil application and control. Also, foliar application significantly enhanced Zn and Fe concentration in grain pre-dominantly localized in aleurone layer. Exogeneous application of Fe and Zn was found beneficial for plant growth and enhanced Fe and Zn concentrations in grain, however aleurone layer and embryonic region of the grain showed higher accumulations than that in endosperm. Therefore, understanding of physiological and molecular pathways for uptake and localization of Fe and Zn in wheat grains need to be critically examined to improve their concentration in grain to achieve the biofortification targets.

通过增加主要用于贫困资源国家的谷物中锌（Zn）和铁（Fe）的含量，可以改善人们的营养状况。在一项研究中，通过土壤和树叶施用锌和铁来强化小麦籽粒。与土壤施用和控制相比，两种微量营养元素的叶面施用均增加了生长和谷物活力。而且，叶面施用显着提高了主要位于糊粉层中的谷物中的Zn和Fe浓度。发现外源施用铁和锌有利于植物生长并提高谷物中铁和锌的浓度，但是糊粉层和谷物的胚芽区域显示出比胚乳中更高的积累量。所以，