Abstract

Rice (Oryza sativa L.) was prepared and used as the experiment material; Seed germination and seedling growth of rice were used to analyze allelopathy and effect on antioxidative metabolism of rice seedling. The results showed that rutin was potential allelochemical in Amaranthus spinosus L., at high concentrations, rutin imposed inhibitory on seed germination. The growth of rice seedlings either aboveground or roots have been promoted, while the high concentrations of rutin aqueous solution imposed a stronger effect on seedling growth inhibition in rice. The content of Glutathione (GSH) increased, Superoxide Dismutase (SOD) and Catalase (CAT) activity increased first, then decreased with increasing concentration of rutin. While POD activity sustained increase. The content of MDA increased, led to the cell membrane damaged, which influenced the growth and development of the rice seedling.

Keywords:

Amaranthus spinosus L, allelopathy, antioxidative metabolism, rice, rutin,

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