Foliar and Tuber Reactions of Three Strains of Potato virus Y on Five Fresh Market Potato Cultivars through Three Successive Potato Generations

Potato virus Y (PVY) is the most economically important virus infecting potatoes worldwide. Current-season spread of PVY occurs when aphids transmit the virus from infected to non-infected plants during the growing season. The impact of current-season PVY infection on yield and quality of chip processing potatoes is not well documented. In a replicated, greenhouse experiment conducted over two years, we measured the effect of current-season infection with four PVY strains, PVYO, PVYN-Wi, PVYNTN and PVYN:O, on chip processing varieties ‘Atlantic’, ‘Lamoka’ and ‘Snowden’. PVY infection decreased yield and tuber specific gravity for some combinations of potato variety and virus strain but did not affect the appearance of chips including the prevalence of stem-end chip defects. This work suggests that current-season infection of chipping potatoes imposes a cost on producers and emphasizes the need for continued investment in seed certification and development of PVY-resistant cultivars.

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Foliar and Tuber Reactions of Three Strains of Potato virus Y on Five Fresh Market Potato Cultivars through Three Successive Potato Generations

Cited by 2 publications

References 19 publications

Screening Three Potato Cultivars for Resistance to Potato Virus Y Strains: Broad and Strain-Specific Sources of Resistance

Screening Three Potato Cultivars for Resistance to Potato Virus Y Strains: Broad and Strain-Specific Sources of Resistance

Current-Season Infection With Ordinary and Recombinant Strains of Potato virus Y Has Detrimental Effects on Chipping Potato Yield and Tuber Quality

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