Study on Evaluation of Salt Resistance of Verbena bonariensis (PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: GUO Yan- chao; SUN Chang- yu; WANG Wen- cheng; SUN Yu; LI Ke- ye; WU Xin- hai; Institute of Coastal Agriculture，Hebei Academy of Agicultural and Forestry Sciences，Tanghai，Hebei 063200

Abstract:: Taking Verbena bonariensis as test material，the effect of NaCl single salt stress on seed germination were studied and its main ornamental characteristics in fields were observed,to explore the salt resistant ability of Verbena bonariensis.The results showed that the germination rate，gernination energy，germination index and vigor index were decreased visibly,and the inhibition effect increased significantly with increasing salt concentration.Salt solution concentration were very significant negative correlation with the relative germination rate，the fit salt concentration for Verbena bonariensis seed germination was 04% NaCl，and the half- lethal concentration and fatal concentration of NaCl was 07% and 12%,respectively.Field plant culturing under 2%~4% concentration of total salt content，the survival rate of transplants was 97%，the plant height was 1085 cm and the stem diameter was 760 cm，no salt stress symptoms，the ornamental characteristics was good.The experiment showed that,Verbena bonariensis had strong salt resistance and excellent ornamental，could grow in moderate salinity area as new optimum plants of salinity tolerance in moderate salinity area.

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Last Update: 2014-08-10