testing of plum germplasm for sensitivity to plum pox.a long-term orchard experiment with a broad assortment of plum cultivars aimed to screen their sensitivity to plum pox virus (ppv) was established in 1991. for this purpose, 207 cultivars to be artificially infected with ppv at a permanent site were chosen. the serotype m of ppv from a tree of cv. domestic prune, which had not been contaminated by other viruses, was used as a source of the infection. three buds infected with ppv were budded on 1-year-old trees. in the course of experiment the fo ...199810073233
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