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Tassels (Chionanthus retusus) Oleaceae , tassels deciduous shrub or small tree , in the garden, there is a very high value . Study the salt tolerance of landscaping guidance saline areas has a positive effect . The trial of the two years students tassels seedlings Different Treatments of NaCl , respectively, using the traditional growth , physiological determination methods and current popular electrical impedance spectra method , determination of a different time , different concentrations of NaCl stress conditions tassels of morphological , physiological indicators , and EIS parameters ; variation of the the EIS parameters with other parameters and correlation , and aims to provide a scientific basis for the study of ornamental plants salt tolerance by establishing linkages between EIS parameters and physiological indicators and an effective technical method . The main results are as follows : 1 . Tassels electrical impedance spectroscopy parameters change with the increase of NaCl concentration and duration of stress time . NaCl stress , intracellular resistivity the ri and conductivity change correlation ( R2 gt ; 0.5) ; correlation r and r1 resistivity resistivity ri intracellular and extracellular resistivity re and leaf water content ( R2 gt; 0.5); the intracellular resistivity ri correlation ( R2 gt chlorophyll content ; 0.5) ; aCl stress relaxation time τ SOD activity correlation ( R2 gt ; 0.5) ; intracellular resistivity ri, resistivity r , the relaxation time distribution coefficient ψ and relaxation time τ and POD activity correlation ( R2 gt ; 0.5) ; resistivity r1 and the the resistivity re extracellular MDA content correlation ( R2 gt ; 0.5 ) ; resistivity r and intracellular resistivity ri proline content and soluble protein content correlation ( R2 gt ; 0.5 ) through the analysis of various physiological indicators and electrical impedance parameters showed that , ri for the evaluation of tassels NaCl stress the best parameters . The test , the results of the analysis of the growth , physiological indicators and electrical impedance parameters showed that , under the stress of different concentration of NaCl , 0.8% for 2-year- fringed seedlings critical salt tolerance value . Tassels conductance values ??and the determination of the electrical impedance parameters , the results show that different NaCl stress response and sensitivity of the stems and leaves of 2-year- fringed leaves are more sensitive to NaCl stress . 6 of this test, the determination of the tassels electrical impedance parameters , most of the parameters , most of the concentration process in dealing with the first 15 d 15 d of the minimum value , suggesting treatment for 2-year- fringed salt tolerance critical days .
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