Summary
In a field experiment in which the date of potato leafroll virus (PLRV) inoculation was controlled, progeny plants derived from late infection of mother plants in the previous year showed much milder symptoms than progeny plants derived from mother plants that became infected earlier in the season. Plants with these milder symptoms contained as great a concentration of PLRV as progeny plants with more obvious symptoms derived from early primary infections.
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References
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Barker, H. & B. D. Harrison, 1986. Restricted distribution of potato leafroll virus antigen in resistant potato genotypes and its effect on transmission of the virus by aphids.Annals of Applied Biology 109: 595–604.
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Woodford, J. A. T. & H. Barker, 1986. Problems of detecting potato leafroll virus following late infection. In: ‘Crop protection of sugarbeet and crop protection and quality of potatoes’, part II.Aspects of Applied Biology 13: 325–331.
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Barker, H., Woodford, J.A.T. Unusually mild symptoms of potato leafroll virus in the progeny of late-infected mother plants. Potato Res 30, 345–348 (1987). https://doi.org/10.1007/BF02357676
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DOI: https://doi.org/10.1007/BF02357676