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Absorption, Bioaccumulation and Transportation of Selenium in Three Vegetables Differing in Selenium Transport Distances.
Author(s):
1. Mei Yang: College of Resource and Environment, Southwest University, Chongqing, China: Crop Research Institute, Sichuan Academy of Agriculture Science, Sichuan Chengdu, China
2. Wanyi Zhao: College of Resource and Environment, Southwest University, Chongqing, China
3. Weihong Xu: College of Resource and Environment, Southwest University, Chongqing, 400716, China
4. Zhangmi He: College of Resource and Environment, Southwest University, Chongqing, 400716, China
5. Deyu Feng: College of Resource and Environment, Southwest University, Chongqing, 400716, China
Abstract:
A pot experiment was conducted to compare the differences of growth, absorption, transportation and accumulation of selenium (Se) in three vegetables differing in Se transport distances, including cucumber (Cucumis sativus L.), tomato (Solanum lycopersicum L.) and radish (Raphanus sativus L.) exposed to soil Se levels (0, 1.0, 5.0, 10.0 and 15.0 mg·kg-1). Results showed that soil application of Se (<10 mg·kg-1) remarkably promoted the growth of all three vegetables by increasing plant dry weights by 5.46% to 58.2% compared to the control without Se treatment. Se concentration and accumulation in roots, stems and leaves increased with the increase of soil Se level and reached the highest when applied at 15 mg·kg-1. At the same Se level (= 15 mg·kg-1), Se concentration in roots, stems and leaves of radish was higher than tomato and cucumber. Se enrichment and its translocation factors for radish were also significantly higher than tomato and cucumber. Compared to tomato and cucumber, radish is more suitable for selenium-rich vegetable cultivation under soil applied Se ≤ 15 mg·kg-1.
Page(s): 2301-2306
Published: Journal: International Journal of Agriculture and Biology, Volume: 20, Issue: 10, Year: 2018
Keywords:
Keywords are not available for this article.
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