Abstract

Abstract: The effects of sewage irrigation on the seedling growth of wheat and its activate oxygen metabolism were studied by water cultivation experiments.The results showed that compared with control,the wheat under sewage irrigation was short and small, and its roots number,fresh /dry weight of stem or root,and content of soluble protein decreased drastically.The content of chlorophyll decreased, while the Cyta/Cytb and membrane lipid peroxidation were increased. The sensitivity of pigment content of wheat leaf undr sewage irrigation was in order of Chlorophyll b > Chlorophyll a >Carotenoid.Furthermore, the POD, SOD and CAT activities of the wheat went down in varying degrees,and the SODwas the most susceptible enzyme to waste water stress. In this paper, the activities of POD, SODand CATdecreased in19.1%～33.1%,37.8%～47.8% and 30.2%～ 35.9%,respectively.

CLC Number:

X171.5

LIU Dengyi, WANG Youbao, ZHANG Xuxiang, SI Qin . [J]. Chinese Journal of Applied Ecology, 2002, (10): 1319-1322.

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