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| Effects of selenium and arbuscular mycorrhizal fungi on the growth and quality of Talinum paniculatum(Jacq.)Gaertn under cadmium stress |
| Received:November 28, 2019 |
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| KeyWord:Talinum paniculatum (Jacq.)Gaertn;selenium;arbuscular mycorrhizal fungi;cadmium stress |
| Author Name | Affiliation | E-mail | | YANG Lu-xi | College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China | | | XIE Yong-dong | College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China | | | HE Zhong-qun | College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China | hzqun328@163.com | | YAN Wen-yi | College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China | |
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| Abstract: |
| This study investigated the growth and quality of Talinum paniculatum (Jacq.)Gaertn under cadmium stress and after the addition of selenium to the soil and inoculation of arbuscular mycorrhizal fungi (AMF). The study conducted a pot experiment to investigate the changes in growth, quality, mineral elements, and accumulation of Cd and Se in T. paniculatum. The results showed that Cd stress inhibited the growth and reduced the quality of T. paniculatum, and large amounts of Cd accumulated in T. paniculatum. Applying Se and AMF alone or Se and AMF together increased plant height, stem diameter, root length, plant branch number, and biomass of T. paniculatum. Vitamin C, total flavonoid, and total phenol contents increased significantly and the quality of T. paniculatum was improved with the application of Se and AMF. The contents of Ca, Cu, and Zn in T. paniculatum increased, but Se and AMF had no significant effect on either Mg or Fe. The application of Se alone, AMF alone, and Se and AMF together reduced Cd uptake by the roots and inhibited Cd transport to the shoots. The Cd contents in leaves decreased by 41.94%, 70.50%, and 72.28%, respectively, compared to Cd treatment alone. In conclusion, the application of Se and inoculation of AMF in soil can promote growth and quality and reduce the Cd content in edible parts of T. paniculatum under Cd stress. The Se and AMF interaction treatment is the most effective. |
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