Abstract:

Studied the allelopathy of rhizosphere soil form Erigeron breviscapus on crop rotation to investigate each other crop rotation. The study used water penetration for different concentrations of E. breviscapus rhizosphere aqueous extracts. Used bioassays determination to determine its effect on seed germination, allelopathy of seedling growth, the changes of superoxide dismutase (SOD) and peroxidase (POD). The results showed that, aqueous extracts form E. breviscapus rhizosphere soil inhibited Zea mays seed germinations rate. Seed germination rate reduced by 4% (form 62% to 58%) when the concentration was from 0.16 g/mL (C) up to 0.50 g/mL (A), and aqueous extracts made seedlings superoxide dismutase (SOD) and peroxidase (POD) activity to increase with increasing concentrations of aqueous extracts to strengthen. The E. breviscapus rhizosphere soil contained allelochemicals which had obvious allelopathy to Zea mays. Zea mays seed germinations and seedling growth showed inhibition, so Zea mays should not rotation with E. breviscapus.