American Potato Journal

, Volume 44, Issue 1, pp 9–16 | Cite as

Testing potatoes for field resistance to late blight

  • Carl J. Eide
  • Florian I. Lauer
Article
Accepted:

Summary

Selection of potato clones for field resistance to late blight was made satisfactoly in the field by inoculating 3-hill units with zoospores ofPhytophthora infestans. More precise comparisons were made in replicated 15-hill plots by measuring the spread of the disease from a single inoculated plant in the center of each plot. Certain selections made in the 3-hill plots proved to be more resistant than Sebago when tested in the 15-hill plots. Differences in resistance were found among Sebago, Pontiac and Irish Cobbler. Dazoc, Norland and Redkote were very susceptible. Resistance to stem and tuber infection was generally, but not consistently, associated with resistance to defoliation.

Keywords

Late Blight AMERICAN Potato Journal Potato Variety Phytophthora Infestans Field Resistance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Resumen

Seleccion de clones de papa por resistencia de campo al anublo (tizón) tardio fue hecha satisfactoriamenta en el campo al inocular zoosporas dePhytophthora infestans en 3 matas individuales. Comparaciones mas precisas fueron hechas en parcelas replicadas de 15 matas en las cuales la dispersión de la enfermedad fue medida desde una planta única inoculada en el centro de cada parcela. Ciertas selecciones hechas en parcelas de 3 matas demostraron mas resistencia que Sebago ensayado en las parcelas de 15 matas. Entre Sebago, Pontiac y Iris Cobbler se halló diferencias de resistencia. Dazoc, Norland y Redkote fueron muy susceptibles. La resistencia a infeccion del tallo y del tubérculo estuvo generalmente, aunque no consistentemente, asociada con resistencia a defoliación.

This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. 1.
    Guzman, N., Julia, H. David Thurston and Lee E. Heidrick. 1966. Metodos de seleccion por resistencia parcial alPhytophora infestans en el invernadero. Amer. Potato J. 43: 35–42.Google Scholar
  2. 2.
    Hodgson, W. A. 1961. Laboratory testing of the potato for partial resistance toPhytophthora infestans. Amer. Potato J. 38: 259–264.CrossRefGoogle Scholar
  3. 3.
    Horsfall, J. G. and R. W. Barratt. 1945. An improved grading system for measuring plant diseases. Phytopathology 35: 655. (Abstr.)Google Scholar
  4. 4.
    Lapwood, D. H. 1961. Potato haulm resistance toPhytophthora infestans. I. Field assessment of resistance. Ann. Appl. Biol. 49: 140–151.CrossRefGoogle Scholar
  5. 5.
    Lapwood, D. H. 1961. Potato haulm resistance toPhytophthora infestans. II. Lesion production and sporulation. Ann. Appl. Biol. 49: 316–330.CrossRefGoogle Scholar
  6. 6.
    Lapwood, D. H. 1961. Potato haulm resistance toPhytophthora infestans. III. Lesion distribution and leaf destruction. Ann. Appl. Biol. 49:704–716.CrossRefGoogle Scholar
  7. 7.
    Lapwood, D. H. 1963. Potato haulm resistance toPhytophthora infestans. IV. Laboratory and field estimates compared, and further field analyses. Ann. Appl. Biol. 51: 17–28.CrossRefGoogle Scholar
  8. 8.
    Niederhauser, John S., Javier Cervantes and Leopoldo Servin. 1944. Late blight in Mexico and its implications. Phytopathology 44: 406–408.Google Scholar
  9. 9.
    Redman, C. E., E. P. King and I. F. Brown, Jr. (No date). Tables for converting Barratt and Horsfall rating scores to estimated mean percentages. Eli Lilly and Co. Research Laboratories. 110 pp.Google Scholar
  10. 10.
    Snedecor, George W. 1946. Statistical methods. Iowa State College Press. pp. 449–450.Google Scholar
  11. 11.
    Stevenson, F. J. and C. F. Clark. 1938. The Sebago potato: a new variety resistant to late blight. U.S.D.A. Agr. Cir. 503.Google Scholar
  12. 12.
    Stevenson, F. J., E. S. Schultz, Robert V. Akeley and Lillian C. Cash. 1945. Breeding for resistance to late blight in the potato. Amer. Potato J. 22: 203–223.CrossRefGoogle Scholar
  13. 13.
    Thurston, H. David, Lee E. Heidrick and Julia Guzman N. 1962. Partial resistance toPhytophthora infestans (Mont.) de Bary within Coleccion Central Colombiana. Amer. Potato J. 39: 63–69.CrossRefGoogle Scholar
  14. 14.
    van der Plank, J. E. 1963. Plant diseases: epidemics and control. Academic Press. pp. 285–310.Google Scholar
  15. 15.
    Weihing, John L. and Robert B. O’Keefe. 1962. Epidemiological potentials of potato varieties in relation to late blight. Phytopathology 52: 1268–1273.Google Scholar

Copyright information

© Springer 1967

Authors and Affiliations

  • Carl J. Eide
    • 1
  • Florian I. Lauer
    • 2
  1. 1.Department of Plant Pathology, Institute of AgricultureUniversity of MinnesotaSt. Paul
  2. 2.Department of Horticultural Science, Institute of AgricultureUniversity of MinnesotaSt. Paul

Personalised recommendations