Evaluation on the resistance of Prunusdavidiana (Carr.) to salinity and alkalinity

One-year-old Prunus davidianaseedlings were treated with 0.4% NaCl solution and KOH solution(pH=9.5)for the purpose of estimating the resistance of Prunus davidiana(Carr.)Franch to salinity and alkalinity.The results showed that after thirty days,the seedlings treated with salt solution were separated into extremely high resistance,high resistance,and medium resistance with percentage of 95.0%、4.0%、1.0%,respectively.Sixteen days later,the seedlings treated with alkali solution were only divided into extremely high resistance and extremely weak resistance with the proportion of 99.0%、1.0%,respectively.In conclusion,Prunus davidiana(Carr.)Franch was an excellent rootstock species that extremely highly resisted to salinity and alkalinity.