TY - Bulletin of Botanical Research A1 - CHEN Hui;SHI Guo-Xin*;XU Qin-Song;Wang Hong-Xia;Yang Hai-Yan;PAN Qiu-Hong T1 - Toxic Effects of Cr6+ on Chlorophyll Fluorescence Parameters,Antioxidant Systems and Ultrastructure of Potamogeton crispus Y1 - 2009-09-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 559 EP - 564 VL - 29 IS - 5 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2009.05.010 ER -