Response of celosia cristata linn to cs and stress and their accumulation characteristic

Plant height, root length, chlorophyll, MDA and accumulating characteristics of Celosia cristata Linn were measured after treated with different concentrations of 133Cs and 88Sr in the hydroponic condition. The results showed that the stem and root length of cockscomb plants had no significant change under low concentrations of 133Cs and 88Sr treatment (0.1 and 0.5 mmol /L), but the plant growth were inhibited under high level of 133Cs or 88Sr (1.0 and 5.0 mmol /L). The dry weight of leaf, stem, root of cockscomb plant decreased with the increase of 133Cs and 88Sr concentration. The concent of chlorophyll in plants increased first and declined, the change of MDA content showed a reverse variation. The distribution of 133Cs and 88Sr in cockscomb plants followed the order of root > stem > leaf. (authors)