Effects of Different Selenium Concentrations on Eco-Physiology of Lactuca sativa

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Zheng, Shuling^1 ; Sun, Guochao^2 ; Tang, Yi^2

College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China^1

Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China^2

关键词: Antioxidant enzyme activity;    Ecophysiology;    Fresh weight;    Photosynthetic pigment contents;    Pot experiment;    Selenium concentrations;    SOD activities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/3/032013/pdf
DOI  :  10.1088/1755-1315/199/3/032013

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The Effects of six selenium concentrations (0, 5, 10, 25, 50, 75, and 100 mg/kg) on eco-physiology of Lactuca sativa were conducted by a pot experiment. The result showed that with the Se concentration increased, the biomass, photosynthetic pigment contents and antioxidant enzyme activities of L. sativa seedlings all increased first and then decreased, and reached maximum at 5 mg/kg. Compared with control, shoot fresh weight, SOD activity and POD activity showed significant difference. At 100 mg/kg of Se concentration, the biomass, photosynthetic pigment contents and antioxidant enzyme activities of L. sativa seedlings all reached minimum and except SOD activity all showed significant difference.