Effect of Salt Stress on Growth and Index of Physiology and Biochemical of Paphanus sativus L.var.radculus Pers.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Salt Stress on Growth and Index of Physiology and Biochemical of Paphanus sativus L.var.radculus Pers.

Author(s):: YAO Lingbai; HAN Haixia; (Department of Biology,Jining Normal University,Wulanchabu,Inner Mongolia 012000)

Keywords:: salt stress; growth; nutrients; peroxidase(POD); Paphanus sativus L.var.radculus Pers.

Abstract:: Taking  Paphanus sativus L.var.radculus Pers. as material,the experiment was applied a soilless substrate’s pot experiment.The effect of salt stress on growth and physiology characteristics were stuided.The effects of NaCl between 20 mmol?L-1 and 120 mmol?L-1 by measuring the indexes,such as the max length of leaves,root diameter,the content soluble sugar,soluble protein,vitamin C,malondialdehyde(MDA),free proline and peroxidase(POD)activity.The results showed that the growth indexes were significantly promoted in the low NaCl concentration(≤20 mmol?L-1),and then inhibited in the high NaCl concentration(≥80 mmol?L-1).The physiology indexes were significantly inhibited in the NaCl concentration(60-80 mmol?L-1)that with the increasing of the NaCl concentration the content of soluble sugar,soluble protein of leaves,MDA and free proline and POD activity were all significantly increased.However,the content of vitamin C in root was significantly decreased in the concentration.And the degree of salt damage to Paphanus sativus L.var.radculus Pers.became higher with the big decrease of soluble sugar,the fluctuating decrease of soluble protein and POD activity and the increase of MDA.

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Last Update: 2016-07-25