Hidden hunger, known as micronutrient deficiency in humans, affects about 2 billion people worldwide. One of the ways to minimize hidden hunger is through genetic biofortification. This study aimed to evaluate the natural genotypic variation of micronutrients in upland rice grains and agronomic traits to select genetic material for further agronomic and genetic biofortification aiming high density of micronutrients in grains. The experimental design used was randomized blocks, with treatments consisting of 8 upland rice genotypes. The agronomic traits and the content of iron, zinc and copper in the rice genotypes grains were evaluated. The genotypes OSVR15001, OSVR15029, OSVR15038 and OSVR15047 did not differ statistically from the commercial cultivar IAC 203 in the two agricultural years and can be used as a complement in the production of upland rice. The OSVR15047 genotype maintained high Cu content in the grains and elevated grain yield in the two years of cultivation, being able to be used in genetic improvement for the emergence of superior genotypes. The OSVR15042 genotype was the only one that maintained a high Zn concentration in the grains in both years, also being able to be used for genetic biofortification. Our results contribute to the selection of genotypes that have good yield and good nutritional content in grains, which can help to minimize the effects of hidden hunger and increase the health of the population.

隐性饥饿，即人类微量营养素缺乏症，影响着全世界约 20 亿人。减少隐性饥饿的方法之一是通过基因生物强化。本研究旨在评估旱稻籽粒中微量营养素的自然基因型变异和农艺性状，以选择遗传材料用于进一步的农艺和遗传生物强化，以实现谷物中微量营养素的高密度。使用的实验设计是随机区组，处理由 8 个旱稻基因型组成。对水稻基因型籽粒的农艺性状和铁、锌、铜含量进行了评价。基因型 OSVR15001、OSVR15029、OSVR15038和OSVR15047在两个农业年份与商业品种IAC 203没有统计学差异，可作为旱稻生产的补充。OSVR15047基因型在两年的栽培中保持了籽粒中较高的Cu含量，提高了籽粒产量，可用于遗传改良，出现优良基因型。OSVR15042 基因型是唯一在这两年中保持谷物中高锌浓度的基因型，也能够用于基因生物强化。我们的研究结果有助于选择具有良好产量和良好营养成分的谷物基因型，这有助于最大限度地减少隐性饥饿的影响并增加人口的健康。OSVR15047基因型在两年的栽培中保持了籽粒中较高的Cu含量，提高了籽粒产量，可用于遗传改良，出现优良基因型。OSVR15042 基因型是唯一在这两年中保持谷物中高锌浓度的基因型，也能够用于基因生物强化。我们的研究结果有助于选择具有良好产量和良好营养成分的谷物基因型，这有助于最大限度地减少隐性饥饿的影响并增加人口的健康。OSVR15047基因型在两年的栽培中保持了籽粒中较高的Cu含量，提高了籽粒产量，可用于遗传改良，出现优良基因型。OSVR15042 基因型是唯一在这两年中保持谷物中高锌浓度的基因型，也能够用于基因生物强化。我们的研究结果有助于选择具有良好产量和良好营养成分的谷物基因型，这有助于最大限度地减少隐性饥饿的影响并增加人口的健康。也可用于基因生物强化。我们的研究结果有助于选择具有良好产量和良好营养成分的谷物基因型，这有助于最大限度地减少隐性饥饿的影响并增加人口的健康。也可用于基因生物强化。我们的研究结果有助于选择具有良好产量和良好营养成分的谷物基因型，这有助于最大限度地减少隐性饥饿的影响并增加人口的健康。