Bioenvironmental trace elements play a vital role in plant, animal, and man metabolism. This study aims to determine trace element concentration in different parts (pods, pericarp, seeds, cotyledon, and taste) of the warm climate plant pigeon pea (Cajanus cajan L. Millsp.). The pigeon pea pods were collected from the farms on the shore of the High Dam Lake, Egypt. Elements (Ag, Au, Co, Cr, Sr, Fe, Cu, Ni, Mn, and Zn) in the pods and its different parts were determined by an atomic absorption spectrophotometer. Statistical analysis (cluster, Pearson correlation coefficient, and factor analysis) was applied to trace elements in different parts of pigeon pea. The results reveal that seeds exhibited the highest concentrations of Cu, Ni, Cr, and Zn, while Ag, Co, Pb, and Fe in the pods. Factor and cluster analyses explain a good relationship among the trace elements in pigeon pea. Also, transfer factor of the elements between plant and soil shows that the high transfer factor of most elements was observed for pods and pericarp. The studied elements in the pods and its different parts were in the safety baseline levels for both man and animal uses.

生物环境微量元素在植物，动物和人的新陈代谢中起着至关重要的作用。本研究旨在确定温暖气候的植物木豆（Cajanus cajan）不同部分（荚果，果皮，种子，子叶和味道）中的微量元素浓度。L.Millsp。）。木豆荚是从埃及高坝湖岸上的农场收集的。用原子吸收分光光度计测定豆荚及其不同部位中的元素（Ag，Au，Co，Cr，Sr，Fe，Cu，Ni，Mn和Zn）。统计分析（聚类分析，皮尔逊相关系数和因子分析）用于木豆不同部位的微量元素。结果表明，种子中的豆荚中铜，镍，铬和锌的浓度最高，而银，钴，铅和铁的含量最高。因子和聚类分析解释了木豆中微量元素之间的良好关系。另外，元素在植物与土壤之间的转移因子表明，荚果和果皮中大多数元素的转移因子较高。