Abstract: Seeds of Fargesia denudate were treated to accelerated aging and the following indices were measured: seed vigor, T-AOC, activities of antioxidative enzymes , contents of MDA, and conductivity , and these indices were also measured on the seeds that differ in size . The results indicated that after different degrees of accelerated aging, the contents of MDA and conductivity gradually increased , while the value of T-AOC and activities of CAT were reduced significantly. The activities of SOD went up, but the ratio of SOD􊄯MDA went down after an initial obvious rise . T-AOC and SOD􊄯MDA could reflect the level of seed aging well, and T-AOC and conductivity had significant correlations with seed vigor . The vigor of middle-sized seeds was higher than that of bigger and smaller seeds . The value of conductivity and contents of MDA went up as the bigger seeds were under determination , and the activities of anti-oxidative enzymes and T-AOC went down during the same process . This indicates that the size of Fargesia denudata seeds correlates with the indices tested in this study.

Key words: Fargesia denudata