Abstract Zinc (Zn) is an essential micronutrient for human health. Breeding zinc-rich crop genotypes is considered as potential solution to Zn deficiency. In this study, variation of Zn uptake, accumulation, distribution and the estimated bioaccessibility among 30 wheat genotypes across two locations were investigated with field experiments. A significant difference in grain Zn concentrations occurred across the two locations, with the corresponding values of 55.24 and 57.14 mg kg−1. Grain Zn concentration was significantly and positively correlated with grain Mn concentration (0.698**, 0.617** for two locations). The estimated grain Zn bioaccessibility also showed a significant difference, a trend similar to grain Zn concentrations but with lower values (13.87 and 13.49 mg Zn d−1 for two locations). These results indicate that the interaction of locations * genotypes may play an important role in grain Zn concentrations and Zn bioaccessibility.

中文翻译：

---

两种不同田间条件下小麦（Triticum aestivum L.）基因型锌积累和生物可及性的基因型变异

摘要 锌（Zn）是人体健康必不可少的微量营养素。培育富含锌的作物基因型被认为是解决缺锌问题的潜在方法。在这项研究中，通过田间试验研究了两个地点 30 种小麦基因型之间锌吸收、积累、分布和估计的生物可及性的变化。两个位置的谷物锌浓度存在显着差异，相应值为 55.24 和 57.14 mg kg-1。晶粒 Zn 浓度与晶粒 Mn 浓度呈显着正相关（两个位置为 0.698**、0.617**）。估计的谷物锌生物可及性也显示出显着差异，趋势与谷物锌浓度相似，但值较低（两个位置的 Zn d-1 为 13.87 和 13.49 毫克）。