Summary
Cucumber seedlings were infected with a virus from sour cherry by rubbing the cotyledons with sap from young sour cherry leaves, showing shock effect symptoms of a virus infection (probably necrotic ringspot). The symptoms on cucumber consisted of necrosis of vegetation point, yellow spots in the leaves and rosette formation, thus showing the resemblance of this infection to the oneMoore, Boyle andKeitt effected in cucumber by using a mixture of necrotic ringspot and yellows virus.
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Literatuur
Moore, J. D., J. S. Boyle andG. W. Keitt — 1948. Mechanical transmission of a virus disease to cucumber from sour cherry. Science 108: 623–624.
Willison, R. S. — 1951. The effects of some stone fruit viruses on cucumber. Plant Disease Reporter 35: 254–255.
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Mulder, D. De overbrenging van een virusziekte van zure kers op komkommer. Tijdschrift Over Plantenziekten 60, 265–266 (1954). https://doi.org/10.1007/BF01980143
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DOI: https://doi.org/10.1007/BF01980143