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The effect of site conditions, variety and fertilization on the content of polyphenolsin potato tubers

Author

Listed:
  • K. Hamouz

    (Czech University of Agriculture in Prague, Czech Republic)

  • J. Lachman

    (Czech University of Agriculture in Prague, Czech Republic)

  • P. Dvořák

    (Czech University of Agriculture in Prague, Czech Republic)

  • M. Jůzl

    (Mendel University of Agriculture and Forestry in Brno, Czech Republic)

  • V. Pivec

    (Czech University of Agriculture in Prague, Czech Republic)

Abstract

In precise field trials in the CR in the years 2004 and 2005 the effect of site conditions, yellow- and purple-fleshed varieties and fertilization on the content of total polyphenols (TP) in potato tubers was investigated. Comparing four localities, significantly highest TP content (by 5.7 to 13.4% higher than in other localities) was determined in the locality Stachy in both years, which we ascribe to apparently lower temperatures in the vegetation period in this locality of high altitude. In comparison to yellow flesh varieties, in the case of purple flesh Valfi variety TP content higher by 52 to 153% was recorded as the average of both years. As for the group of eight yellow flesh varieties, Karin variety had the highest TP content and showed a significant increase in comparison to Agria, Saturna and Asterix varieties by 67, 60 and 37%, respectively. TP content was not demonstrably affected by fertilization with mineral fertilizers, but we recorded a tendency to lesser TP content (by 3 to 9.9%) in the variant with higher potassium and magnesium fertilization (166 kg K/ha and 60 kg Mg/ha).

Suggested Citation

  • K. Hamouz & J. Lachman & P. Dvořák & M. Jůzl & V. Pivec, 2006. "The effect of site conditions, variety and fertilization on the content of polyphenolsin potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(9), pages 407-412.
    • Handle: RePEc:caa:jnlpse:v:52:y:2006:i:9:id:3459-pse
    DOI: 10.17221/3459-PSE
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    References listed on IDEAS

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    1. K. Hamouz & J. Lachman & P. Dvořák & V. Pivec, 2005. "The effect of ecological growing on the potatoes yield and quality," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(9), pages 397-402.
    2. J. Lachman & K. Hamouz, 2005. "Red and purple coloured potatoes as a significant antioxidant source in human nutrition - a review," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(11), pages 477-482.
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    Cited by:

    1. Olga ESCUREDO & Ana SEIJO-RODRÍGUEZ & M. Shantal RODRÍGUEZ-FLORES & Montserrat MÍGUEZ & M. Carmen SEIJO, 2018. "Influence of weather conditions on the physicochemical characteristics of potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(7), pages 317-323.
    2. K. Hamouz & J. Lachman & K. Hejtmánková & K. Pazderů & M. Čížek & P. Dvořák, 2010. "Effect of natural and growing conditions on the contentof phenolics in potatoes with different flesh colour," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(8), pages 368-374.
    3. K. Hamouz & J. Lachman & P. Dvořák & O. Dušková & M. Čížek, 2007. "Effect of conditions of locality, variety and fertilization on the content of ascorbic acid in potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 53(6), pages 252-257.

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