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Ascorbic acid content in potato tubers with coloured flesh as affected by genotype, environment and storage

Author

Listed:
  • Karel HAMOUZ
  • David BEČKA

    (Department of Plant Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Ivana CAPOUCHOVÁ

    (Department of Plant Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The aim of the study was to evaluate the effect of genotype, tuber flesh colour, site conditions, year of cultivation and storage on the content of ascorbic acid (AAC) in the tubers of twelve potato cultivars with coloured flesh, compared with the yellow-flesh cv. Agria. AAC ranged from 88.6 to 282.0 mg/kg fresh matter (FM) and it was significantly influenced by genotype. A significantly highest AAC, on a three-year average, was achieved by cv. Rosemarie with red flesh (218.9 mg/kg FM; 1.10-1.84-fold more than the other cultivars). Position number two was achieved by the control cv. Agria (199.4 mg/kg FM). The purple or red colour of the cultivars with coloured flesh did not have a significant effect on the AAC. A significantly higher (1.17 times) AAC was determined at the Uhříněves site with warmer climate and drier weather before the harvest, compared with the other site in Valečov. The AAC was also significantly affected by year of cultivation. Cold storage (4°C, 180 days) resulted in a significant decrease in AAC, which varied in dependence on the genotype of the cultivars (34.6% to 65.1%). However, no link to the colour of the tuber flesh was found.

Suggested Citation

  • Karel HAMOUZ & David BEČKA & Ivana CAPOUCHOVÁ, 2018. "Ascorbic acid content in potato tubers with coloured flesh as affected by genotype, environment and storage," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(12), pages 605-611.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:12:id:542-2018-pse
    DOI: 10.17221/542/2018-PSE
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    References listed on IDEAS

    as
    1. 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.
    2. Jaroslav URBAN & Karel HAMOUZ & Jaromír LACHMAN & Josef PULKRÁBEK & Kateřina PAZDERŮ, 2018. "Effect of genotype, flesh colour and environment on the glycoalkaloid content in potato tubers from integrated agriculture," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(4), pages 186-191.
    Full references (including those not matched with items on IDEAS)

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