Advertisement

Potato Research

, Volume 33, Issue 1, pp 97–108 | Cite as

Potato cuttings as models to study maturation and senescence

  • John J. McGrady
  • Elmer E. Ewing
Article

Summary

Single leaf cuttings with their subtended axillary buds proved to be useful models to study maturation and senescence in potato (Solanum tuberosum L.). Senescence was more rapid if the cultivar was early maturing or if plants were exposed to short days before cuttings were taken. Rooting was decreased by short days before cutting; excision of the buried bud only partially overcame the effects on senescence and rooting. High rates of N to mother plants in the field delayed senescence of cuttings in a way analogous to the delayed senescence of field plants. The tuberization of cuttings from late maturing cultivars was decreased by high rates of N. The color of crisps made from bud tubers was positively correlated with the color of crisps made from ordinary tubers of the same cultivars. Sugar concentrations in bud tubers decreased as cuttings became more senescent and increased after cold storage. Bud tubers harvested while ‘immature’ had greater concentrations of reducing sugars after 90 d at 10°C than did ‘mature’ bud tubers.

Additional key words

Solanum tuberosum L. photoperiod sucrose glucose fructose reducing sugars periderm crisp color chip color 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Artschwager, E., 1924. Studies on the potato tuberization.Journal of Agricultural Research 27: 809–835.Google Scholar
  2. Bodlaender, K. B. A., 1963. Influence of temperature, radiation, and photoperiod in development and yield. In: J. D. Ivins & F. L. Milthorpe (Eds), The growth of the potato, p. 199–210. Butterworth, London.Google Scholar
  3. Boodley, J. W. & R. Sheldrake, Jr., 1973. Cornell peatlite mixes for commercial plant growing. Cornell University Information Bulletin 43. 8 p.Google Scholar
  4. Duncan, D. A. & E. E. Ewing, 1984. Initial anatomical changes associated with tuber formation on sigle-node potato (Solanum tuberosum L.) cuttings.Annals of Botany 53: 607–610.Google Scholar
  5. Ewing, E. E., 1978. Critical photoperiods for tuberization: a screening technique with potato cuttings.American Potato Journal 55: 43–53.Google Scholar
  6. Ewing, E. E., 1985. Cuttings as simplified models of the potato plant. In: P. H. Li (Ed.), Potato physiology, p. 153–207. Academic Press, New York.Google Scholar
  7. Ewing, E. E., A. H. Senesac & J. B. Sieczka, 1981. Effects of short periods of chilling and warming on potato sugar content and chipping quality.American Potato Journal 58: 633–647.Google Scholar
  8. Ewing, E. E. & P. F. Wareing, 1978. Shoot, stolon, and tuber formation on potato (Solanum tuberosum L.) cuttings in response to photoperiod.Plant Physiology 61: 348–353.Google Scholar
  9. Harris, P. M., 1978. Mineral nutrition. In: P. M. Harris (Ed.), The potato crop, p. 195–243. Chapman and Hall, London.Google Scholar
  10. Kopetz, L. M. & O. Steineck, 1954. Photoperiodische Untersuchungen an Kartoffelsämlingen.Zuechter 24: 69–77.Google Scholar
  11. Krug, H., 1960. Zum photoperiodischen Verhalten einiger Kartoffelsorten. I. II.European Potato Journal 3: 47–49; 107–136.Google Scholar
  12. Mackinney, G., 1941. Absorption of light by chlorophyll solutions.Journal of Biological Chemistry 140: 315–332.Google Scholar
  13. McGrady, J. J., P. C. Struik & E. E. Ewing, 1986. Effects of exogenous applications of cytokinin on the development of potato (Solanum tuberosum L.) cuttings.Potato Research 29: 191–205.Google Scholar
  14. Nelson, D. C. & R. Shaw, 1976. Effects of planting and harvest dates, location in the hill and tuber size on sugar content of Kennebec potatoes.American Potato Journal 53: 15–21.Google Scholar
  15. Nelson, D. C. & J. R. Sowokinos, 1983. Yield and relationships among tuber size, sucrose and chip color in six potato cultivars on various harvest dates.American Potato Journal 60: 949–958.Google Scholar
  16. Slater, J. W., 1963. Mechanisms of tuber initiation. In: J. D. Ivins & F. L. Milthorpe (Eds), The growth of the potato, p. 114–120. Butterworth, London.Google Scholar
  17. Sowokinos, J. R., 1978. Relationship of harvest sucrose content to processing maturity and storage life of potatoes.American Potato Journal 55: 333–344.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • John J. McGrady
    • 1
  • Elmer E. Ewing
    • 1
  1. 1.Department of Vegetable CropsCornell UniversityIthacaUSA

Personalised recommendations