Effect of Pyrite Cinder on Calla Lily Antioxidation

The effect of pyrite cinder on calla lily antioxidation was researched by solution culture method. The experimental result shows that compared with the control,using pyrite cinder can obviously increase plant chlorophyll content and promote the photosynthesis of calla lily. Along with treating time prolonging, SOD,CAT,POD and MDA contents all show ascending first and then descending,and they are all higher than plants that have not used pyrite cinder. It presents that pyrite cinder has strong influence on calla lily growth,and can promote plant growth. As an ecological technology for sewage treatment, artificial wetland is characterized by stable quality of water output, low cost in building infrastructure and operation, low technical content, easy maintenance and management, strong impact resistance and aesthetical value. These features make it enjoy a booming development worldwide([1-3]). Artificial wetland is especially applicable to domestic sewage treatment in rural and medium/small-sized urban areas. Wetland plant, as the most distinctive biological feature in ecological remedy of wetlands, plays an important role in purifying waste water, for it can not only remove pollutants but possesses ecological, aesthetical and economic values([4]). Fe (Ferrum) is the crucial trace element for plants and plays a major role in enzymatic reactions and electron-transfer chains of various physiological processes of metabolism, like photosynthesis, respiration and nitrogen fixation([5]). Pyrite cinder is one of the most common substrates in artificial wetlands. Up till now, however, there hasn't been any research on its effect on product growth. This project chooses dishlia, with great ornamental and economic value, as the artificial wetland plant and researches the dephosphorization effect of pyrite cinder on dishlia and its oxidation resistance.