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Leafroll resistance in some tuberous solani under controlled aphid inoculations

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Summary

Although immunity has not been demonstrated, six accessions of the 42 tested failed to show evidence of leafroll infection during the entire study. These were four accessions ofS. phureja— P.I. numbers 225672, 225683, 225703, and 243463 — and two hybrids, P.I. numbers 214372 and 214374, with S. andigenum and S. tuberosum in their ancestry. Three other accessions also exhibited a high degree of resistance to infection by the leafroll virus - S. raphanifolium (P.I. 222948), and Cockerham G603 (6) (P.I. 222952). These nine accessions exhibited a level of resistance to aphid inoculation of the leafroll virus which would be of value in breeding for disease resistance.

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Author notes

  1. R. L. Clark

    Present address: Plant Pathologist, Crops Research Division, ARS, U.S.D.A., Prosser, Washington

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    1. R. L. Clark
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    Portion of a Ph.D. Thesis, Washington State University; Scientific Paper No. 2239, Wasington State Agricultural Experiment Stations, Pullman. Work conducted under Project No. 1465.

    Formerly Research Assistant, Department of Plant Pathology, Washington State University, Pullman

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    Clark, R.L. Leafroll resistance in some tuberous solani under controlled aphid inoculations. American Potato Journal 40, 115–120 (1963). https://doi.org/10.1007/BF02849136

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