Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (31): 151-155.doi: 10.11924/j.issn.1000-6850.2014-2258

Special Issue: 生物技术

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Effects of Exogenous SO2 on Seed Germination of Perilla frutescens

  

  • Received:2014-08-18 Revised:2014-08-18 Accepted:2014-09-30 Online:2014-11-20 Published:2014-11-20

Abstract: The study aims to investigate the implantation of exogenous SO2 on Perilla frutescens seeds germination and seedling membrane physiology and biochemical. The research used various concentrations of SO2 (0, 0.5, 1, 1.5, 2, 2.5 mmol/L) to treat Perilla frutescens seeds to germinate under appropriate conditions, and determine its seeds germination rate, germination potential and germination index, as well as chlorophyll, MDA (malondia idehyde), POD (peroxidase), PPO (polyphenoloxidase), soluble sugar content of seedlings. The results showed that with the SO2 concentration increased, the germination rate, germination potential, germination index, POD activity and soluble sugar content were first increased and then decreased, the maximum reached 1.5 mmol/L. Chlorophyll content generally showed a gradual upward trend with the increase of SO2 concentration. MDA content, PPO activity along with the increase of SO2 concentration, a generally upward trend after the first fall, were lowest in 1.5 mmol/L. What the figure showed that in the SO2 concentration of 1.5 mmol/L was most favorable for Perilla frutescens seeds germination and growth, and could improve seeds antioxidant stress capacity.