摘要：Cd accumulation and translocation, chlorophyll contents, photosynthetic parameters, and photosynthetic fluorescence parameters were investigated in S. matsudana exposed to 10, 50 and 100 qmol/L Cd for 7, 14, 21 and 28 d. The results indicated that the Cd contents of different organs increased with increasing of Cd concentration and prolonging of treatment. The contents of Fe, Mn, Cu and Zn decreased significantly (P<0.05). The low concentration of Cd (10 qmol/L) did not significantly decreased the chlorophyll content of the leaves, net photosynthetic rate (Pn) and photosynthetic fluorescence parameters such as F0, Fm, Fv/Fm, qP and qN. While high concentration of Cd treatment (100 qmol/L) significantly reduced the content of chlorophyll a, b and a+b (P<0.05), Pn, F0, Fm, Fv/Fm, qP, qN and ETR. The parameters of Pn, Fm, Fv/Fm and ETR were significantly changed in 50 qmol/L only after long-term treatment (28 days) (P<0.05).
关键词：Accumulation;photosynthesis;chlorophyll;Cd;Salix m atsudana Koidz
