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The impact of weather conditions on alpha-acid content in hop (Humulus lupulus L.) cv. Aurora

Author

Listed:
  • Douglas MacKinnon

    (Faculty of Agriculture and Life Sciences, University of Maribor, Hoče, Slovenia)

  • Viljem Pavlovič

    (Faculty of Agriculture and Life Sciences, University of Maribor, Hoče, Slovenia)

  • Barbara Čeh

    (Slovenian Institute of Hop Research and Brewing, Žalec, Slovenia)

  • Boštjan Naglič

    (Slovenian Institute of Hop Research and Brewing, Žalec, Slovenia)

  • Martin Pavlovič

    (Faculty of Agriculture and Life Sciences, University of Maribor, Hoče, Slovenia
    Slovenian Institute of Hop Research and Brewing, Žalec, Slovenia)

Abstract

The influence of four main weather attributes on the content of alpha-acids of the hop cv. Aurora for the period 1994-2019 was studied. By analysing correlation coefficients, specific times of the year when the weather conditions affect the alpha-acid content with the goal of creating a forecasting model in Slovenia were identified. The most significant periods of weather that impacted the alpha-acid contents throughout the growing time of year are recognised as attributes of temperatures (T), rainfall (R) and sunshine (S) calculated from the 25th to 30th week (T2530, r = -0.78, P < 0.01; R2529, r = 0.72, P < 0.01 and S2529, r = -0.81, P < 0.01) and attributes of relative humidity (RH) from the 27th to 32nd week (RH2732, r = 0.82, P < 0.01). T2530 stands for the amount of active temperatures from June 18 to July 29. Likewise, R2530 matches to the precipitation (in mm or L/m2) during the same time period.

Suggested Citation

  • Douglas MacKinnon & Viljem Pavlovič & Barbara Čeh & Boštjan Naglič & Martin Pavlovič, 2020. "The impact of weather conditions on alpha-acid content in hop (Humulus lupulus L.) cv. Aurora," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(10), pages 519-525.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:10:id:344-2020-pse
    DOI: 10.17221/344/2020-PSE
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    References listed on IDEAS

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    1. V. Pavlovic & M. Pavlovic & A. Cerenak & I.J. Kosir & B. Ceh & C. Rozman & J. Turk & K. Pazek & K. Krofta & G. Gregoric, 2012. "Environment and weather influence on quality and market value of hops," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 58(4), pages 155-160.
    2. Pavel Donner & Jaroslav Pokorný & Josef Ježek & Karel Krofta & Josef Patzak & Josef Pulkrábek, 2020. "Influence of weather conditions, irrigation and plant age on yield and alpha-acids content of Czech hop (Humulus lupulus L.) cultivars," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(1), pages 41-46.
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    1. Pavel Donner & Jaroslav Pokorný & Josef Ježek & Karel Krofta & Josef Patzak & Josef Pulkrábek, 2020. "Influence of weather conditions, irrigation and plant age on yield and alpha-acids content of Czech hop (Humulus lupulus L.) cultivars," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(1), pages 41-46.

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