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Yield and resistance of potato cultivars with colour flesh to potato late blight

Author

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  • Kateřina PAZDERŮ
  • Karel HAMOUZ

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

Abstract

The resistance to potato late blight (as AUDPC - the area under the disease progress curve) and yield were evaluated in precise field experiments with 13 colour-fleshed potato cultivars. Red Emmalie and Blaue Anneliese were the most profitable cultivars of potatoes with coloured flesh, the overall yield did not differ statistically from the control cv. Agria. Cv. Blaue Anneliese resistance to potato late blight was considerably better than both control cultivars, other 2 cultivars HB Red and Red Emmalie were similar to cv. Agria. Surprisingly, cv. Russet Burbank was found to be more resistant than most cultivars tested. A statistically significant weak dependence (r = 0.36) between the percentage of infestation of plants in the T6 evaluation date (6-8 August in individual years) and the yield was detected, the slightly stronger (r = 0.40) was the correlation between AUDPC values and total yields.

Suggested Citation

  • Kateřina PAZDERŮ & Karel HAMOUZ, 2017. "Yield and resistance of potato cultivars with colour flesh to potato late blight," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(7), pages 328-333.
    • Handle: RePEc:caa:jnlpse:v:63:y:2017:i:7:id:371-2017-pse
    DOI: 10.17221/371/2017-PSE
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    References listed on IDEAS

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    1. Krystyna RYKACZEWSKA, 2017. "Impact of heat and drought stresses on size and quality of the potato yield," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(1), pages 40-46.
    2. K. Pazderů & K. Hamouz & J. Lachman & P. Kasal, 2015. "Yield potential and antioxidant activity of potatoes with coloured flesh," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(9), pages 417-421.
    3. K. Hamouz & K. Pazderů & J. Lachman & J. Čepl & Z. Kotíková, 2016. "Effect of cultivar, flesh colour, locality and year on carotenoid content in potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 62(2), pages 86-91.
    4. V. Sedláková & J. Dejmalová & E. Hausvater & P. Sedlák & P. Doležal & J. Mazáková, 2011. "Effect of Phytophthora infestans on potato yield in dependence on variety characteristics and fungicide control," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(10), pages 486-491.
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