文献类型： 外文期刊

作者： Sun Xieping ¹ ; Yi, Hongwei ² ; Chen, Yuanping ² ; Luo Youjin ² ; Ping Tan ² ; Xie, Yonghong ² ;

作者机构： 1.Yangtze Normal Univ, Life Sci & Technol Inst, Chongqing, Peoples R China

2.Chongqing Acad Agr Sci, Fruit Res Inst, Chongqing 401329, Peoples R China

关键词： absorption; selenium; transportation; Ziyang xiangcheng

期刊名称：JOURNAL OF PLANT NUTRITION （ 影响因子：1.6； 五年影响因子：2.4 ）

ISSN： 0190-4167

年卷期： 2018 年 41 卷 2 期

页码：

收录情况： SCI

摘要： Different concentrations of selenium (Se6+) were added in order to detect the rules of Se absorption, transportation, and distribution in seedlings of Ziyang xiangcheng. After two months of treatments, seedling growth parameters, Se concentrations in different parts, and rhizosphere microbial counts were detected. We found 1-8 mg Se6+/L treatments promoted plant growth, especially at 2 mg/L. The seedling Se concentrations were also improved with the increase of Se dose. Both Se concentrations and total Se content were the largest in leaves, followed by roots and stems. The counts of bacteria and fungi were maximized at the dose of 2 mg Se6+/L. With the increase of Se dose, Se transaction factors were reduced. Moreover, bioconcentration factors (BCFs) viz BCFroot/soil and BCFstem/soil were maximized at the dose of 2 mg/L Se6+. These results indicated that the optimized growth Se content is at the dose of 2 mg Se6+/L.