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The effect of selected factors on the content of protein and nitrates in potato tubers

Author

Listed:
  • J. Lachman

    (Czech University of Agriculture in Prague, Czech Republic)

  • K. Hamouz

    (Czech University of Agriculture in Prague, Czech Republic)

  • P. Dvořák

    (Czech University of Agriculture in Prague, Czech Republic)

  • M. Orsák

    (Czech University of Agriculture in Prague, Czech Republic)

Abstract

The aim of the study was to determine the effect of region, variety, year and ecological and conventional way of cultivation on the content of total protein and nitrates in potato tubers in three-year field trials. The effects of selected factors on nitrate and protein contents were similar, more significant for nitrates. Growing regions, varieties and years of cultivation caused statistically significant effects whereas the effect of ecological way of cultivation was less pronounced and showed a tendency without significance. Higher region showed lesser average nitrate (113.4 mg/kg) and protein content (4.27% dry matter) in comparison with lower region (143.7 mg/kg and 4.72% dry matter). The highest nitrate content was found in Impala and Karin varieties (199.2 and 167.6 mg/kg); Karin variety was also rich in total proteins (4.86% dry matter). Ecological way of cultivation showed no significant difference on nitrate content (136.9 mg/kg) and protein content (4.41%) as compared with conventional way of cultivation (153.9 mg/kg, 4.32%).

Suggested Citation

  • J. Lachman & K. Hamouz & P. Dvořák & M. Orsák, 2005. "The effect of selected factors on the content of protein and nitrates in potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(10), pages 431-438.
    • Handle: RePEc:caa:jnlpse:v:51:y:2005:i:10:id:3614-pse
    DOI: 10.17221/3614-PSE
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    References listed on IDEAS

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    1. J. Mitrus & C. Stankiewicz & E. Steć & M. Kamecki & J. Starczewski, 2003. "The influence of selected cultivation on the content of total protein and amino acids in the potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(3), pages 131-134.
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    Cited by:

    1. Jarosław Pobereżny & Katarzyna Retmańska & Elżbieta Wszelaczyńska & Anna Nogalska, 2023. "Influence of Magnesium and Biostimulant on the Consumption Value and Harmful Nitrogen Compounds Content of Potato Tubers after Storage," Agriculture, MDPI, vol. 13(11), pages 1-15, October.
    2. Jan BÁRTA & Veronika BÁRTOVÁ, 2008. "Patatin, the major protein of potato (Solanum tuberosum L.) tubers, and its occurrence as genotype effect: processing versus table potatoes," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 26(5), pages 347-359.
    3. Ladislava Mišurcová & Stanislav Kráčmar & Bořivoj Klejdus & Jan Vacek, 2010. "Nitrogen content, dietary fiber, and digestibility in algal food products," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 28(1), pages 27-35.

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    1. Jan BÁRTA & Veronika BÁRTOVÁ, 2008. "Patatin, the major protein of potato (Solanum tuberosum L.) tubers, and its occurrence as genotype effect: processing versus table potatoes," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 26(5), pages 347-359.

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