The relationship between the ageing and the membrane lipid peroxibition of Chinese toon seed were studied by the method of ageing accelerated. The results showed that prolonged ageing treatment caused a significant increase in the O, produc-tion,malondialdehyde(MDA) accumulation and cell membrane permeability MDA content,relative electric conductivity and O,production rate of seed treated for 5d were 96. 2 %, 45. 5 %and 353. 49% higher than that of untreated seed respectively. The vig-or of Chinese toon see...