Impact of salt stress on physiological and biochemical indexes of five garden shrubs for landscape usage
The impact of salt solution at different concentrations on five garden shrubs(Grandiflora,Maculata,Casin,Rosmarinus and Makino was studied).The result indicated that the chlorophyll and carotenoids contents were reduced along with the salt concentration.And the decline range of Grandiflora and Makino was small.The chlorophyll content variation of Makino was the minimum.The five garden shrubs contents of SOD,CAT,POD and soluble protein were negatively correlated with the cell membrane permeability.The enzyme active of Makino and Rosmarinus was higher.The soluble protein content was not important in salt resistance.The contents of proline,soluble sugar,MAD activity were negatively correlated with cell membrane permeability.Makino,Rosmarinus and Grandiflora showed an increasing trend.Their superoxide radical changes were small,membrane damage showed a lesser degree.Maculata and Casin showed a poor salt tolerance.
five garden shrubs of landscape plantssalt stressprotective enzyme systemphysiological and biochemical indexes