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| Effect of Concentrations of Cu2+，Zn2+ and Mn2+ Nutrient Solution on Chlorophyll Fluorescence Parameters of Cucumber Seedling Leaves under Low Temperature |
| LI Shu-mei,LI Tao,CAO Shou-jun,XIA Xiu-bo,WANG Quan-hua |
| Yantai Academy of Agriculture Sciences,Yantai 265500，Shandong，China |
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Abstract The effects of different concentrations of Cu2+,Zn2+ and Mn2+ nutrient solution on chlorophyll fluorescence parameters of cucumber seedling leaves under low temperature were studied.The results showed that Fv/Fm,ΦPSⅡ of cucumber seedling leaves could been increased under low temperature when cucumber was treated by high concentrations of Cu2+,Zn2+ and Mn2+.This indicated that the photosynthetic apparatus of cucumber seedling leaves could been enhanced by increasing the concentrations of Cu2+,Zn2+ and Mn2+.
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Received: 12 January 2009
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