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Influence of environmental conditions on the quality of potato tubers

Author

Listed:
  • K. Hamouz

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Agriculture in Prague, Prague, Czech Republic)

  • J. Čepl

    (Potato Research Institute Havlíčkův Brod, Czech Republic)

  • P. Dvořák

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Agriculture in Prague, Prague, Czech Republic)

Abstract

In 1995-1997 seven varieties of potatoes were cultivated in field trials in twelve localities in the Czech Republic. Six of the twelve localities were situated in lower, warmer and drier areas with fertile, predominantly loamy soils. The other localities were situated in higher, colder and more humid areas. They represent traditional potato-growing areas in the Czech Republic. After harvest potato tubers of all varieties were analysed for resistance to mechanical damage, dry matter content, reducing sugar (RS) content, nitrate content, polyphenol content. Glycoalkaloid (GA) content was analysed only in Karin variety. In all experimental years potatoes cultivated at lower altitudes contained less RS (by 22%), less polyphenolic compounds (by 5.8%), higher percentage of tubers not mechanically damaged with the rebound pendulum (by 12.7%), compared to tubers from higher localities. On the other hand, tubers grown at lower altitudes contained more nitrates (by 26.8%) in all three years. Over the three years, the average of results in Karin variety did not demonstrate the influence of environmental conditions of the areas on GA content in tubers.

Suggested Citation

  • K. Hamouz & J. Čepl & P. Dvořák, 2005. "Influence of environmental conditions on the quality of potato tubers," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 32(3), pages 89-95.
    • Handle: RePEc:caa:jnlhor:v:32:y:2005:i:3:id:3771-hortsci
    DOI: 10.17221/3771-HORTSCI
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    Cited by:

    1. Krystyna Zarzecka & Marek Gugała & Iwona Mystkowska & Anna Sikorska, 2021. "Changes in dry weight and starch content in potato under the effect of herbicides and biostimulants," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(4), pages 202-207.

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