Establishment and Application of a Multiplex RT-PCR Detection Method for SPCSV, SPVG and SPFMV Infecting Sweetpotato Establishment and Application of Multiplex PCR Rapid Detection of Potato Viruses Simultaneous detection of five viruses (TMV,CMV,TEV,PVY and TVBMV) infecting tobacco by multiplex RT-PCR Studies on the Simultaneous Detection of Citrus Huanglongbing Pathogen,Citrus exocortis viroid, Citrus tristeza virus by Multiplex RT-PCR Studies on the Simultaneous Detection of Citrus Huanglongbing Pathogen,Citrus exocortis viroid, Citrus tristeza virus by Multiplex RT-PCR Multiplex RT-PCR for Simultaneous Detection of Four Grapevine Viruses Multiplex RT-PCR for Simultaneous Detection of Four Grapevine Viruses Detection of Three Lily Viruses by Multiplex RT-PCR Detection of Two Viruses of Gladiolus hybridus by Multiplex RT-PCR Multiplex RT-PCR Assay for Simultaneous Detection of Three Latent Apple Viruses Detection of four viruses(SMoV、SVBV、SMYEV and SCV) infecting strawberry by multiplex RT-PCR Detection of Three Lily Viruses by Multiplex RT-PCR Establishment and Application of Multiplex PCR Rapid Detection of Potato Viruses