screening and the possibility of producing virus-free plant materials in some native and commercial olive cultivars. olive

Samples of leaves, petioles and bark tissues were collected from 70 mature trees of olive germplasm in spring and summer from Olive Research Station of Tarom in Zanjan province of Iran. The samples were tested for graft-transmissible agents using molecular and serological assays consisting of Cucumber mosaic virus (CMV), Strawberry latent ring spot virus (SLRSV), Arabis mosaic virus (ArMV), Cherry leaf roll virus (CLRV), Olive latent viruses 1-3 (OLV-1, OLV-2, OLV-3 ), Olive latent ring spot virus (OLRSV), Olive leaf yellowing associated virus (OLYaV), Olive mild mosaic virus (OMMV), Tobacco necrosis virus A (TNV A) and phytoplasma