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| Effect of Chlorophyllin-iron on Osmoregulation Substance and Activities of
Antioxidant Enzymes of Cucumber Seedling under Nitrate Stress |
| ZHANG Meng1，WANG Xiu-feng1，2*，WEI Min1，2，3，YANG Feng-juan1，2，LI Yan1 |
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Abstract chlorophyllin-iron solution at cucumber（ Cucumis sativus L.）seedling leaves on the plant growth，contents of
proline，soluble sugar，MDA and activity of peroxidase under nitrate stress. The results showed that exogenous
spraying chlorophyllin-iron solution at leaves could relieve the inhibition of nitrate on cucumber seedling growth，
decrease the contents of proline，soluble sugar，MDA，and increase the activities of SOD，POD，CAT and
APX. Eexogenous spraying chlorophyllin-iron could to certain extent reduce the accumulation of active oxygen
in leaves under nitrate stress， restrain lipid peroxidation，and therefore relieve the damage of nitrate stress on
cucumber seedlings.
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Received: 02 November 2013
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