[Effects of copper mine tailings on growth and development and physiological function of wheat].
Through pot culture experiments, the effects of Tonling copper mine tailings on growth and development and physiological function of wheat were investigated in this paper. The results showed that the seeds of wheat could germinate in copper mine tailings, but seed germination percentage and germination rate were lower than that in control. High ratio tailings decreased seedling height. Tailings decreased chlorophyll contents, but didn't effect on chlorophyll a/b. Compared with control, tailings significantly inhibited root growth and decreased root number. Tailings increased root and shoot biomass and significantly increased root/shoot ratio of wheat. The permeability of cell membrane and the free proline content in leaves of wheat increased with the increase of the ratio of tailings, they were relative tolerance index of wheat to copper tailings stress.
Liu
D
D
College of Life Science, Anhui Normal University, Wuhu 241000. ldy@mail.ahnu.edu.cn
Xie
J
J
Yang
S
S
Shen
H
H
D018533:Biomass; D002463:Cell Membrane Permeability / Q000187:drug effects; D003300:Copper / Q000494:pharmacology*; D018525:Germination / Q000187:drug effects* / Q000502:physiology; D018517:Plant Roots / Q000187:drug effects; D011392:Proline / Q000378:metabolism; D014908:Triticum / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology
D003300:Copper; D011392:Proline