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Effect of plant growth regulators on potato tuber yield and quality

Author

Listed:
  • Marek Kołodziejczyk
  • Kamil Gwóźdź

    (Department of Agroecology and Crop Production, Faculty of Agriculture and Economics, University of Agriculture in Krakow, Krakow, Poland)

Abstract

The aim of the study conducted in 2019-2021 was to determine the effect of biostimulants and growth regulators on the yield size and structure, as well as the chemical composition of edible potato tubers. The cultivar evaluated was Vineta. Asahi SL, Kelpak SL, Aminoplant, Tytanit, gibberellic acid (GA3) and Moddus 250 EC were applied in potato cultivation. The application of biostimulants Asahi SL and Tytanit increased the total and marketable tuber yield, as well as the average tuber weight. Aminoplant had a beneficial effect only on the marketable yield, while Moddus 250 EC decreased tuber yield and mean tuber weight, especially under conditions of high rainfall. Biostimulant Asahi SL caused a decrease in the number of tubers formed, while gibberellic acid stimulated tuberisation. Both preparations increased the share of deformed tubers in the total yield. The effect of biostimulants and growth regulators on the formation of the chemical composition of potato tubers was multidirectional. Tytanit increased protein content in tubers, while the remaining preparations, with the exception of the growth regulator Moddus 250 EC, decreased the amount of this component. GA3 and Moddus 250 EC decreased the content of crude fibre and, in the case of Moddus 250 EC, also the content of mineral components. The highest concentration of nitrates (V) was characteristic for potato tubers treated with Asahi SL and the lowest for those treated with Moddus 250 EC.

Suggested Citation

  • Marek Kołodziejczyk & Kamil Gwóźdź, 2022. "Effect of plant growth regulators on potato tuber yield and quality," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(8), pages 375-381.
    • Handle: RePEc:caa:jnlpse:v:68:y:2022:i:8:id:215-2022-pse
    DOI: 10.17221/215/2022-PSE
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    References listed on IDEAS

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    1. Krystyna Zarzecka & Marek Gugała & Anna Sikorska & Kornelia Grzywacz & Marek Niewęgłowski, 2020. "Marketable Yield of Potato and Its Quantitative Parameters after Application of Herbicides and Biostimulants," Agriculture, MDPI, vol. 10(2), pages 1-10, February.
    2. Krystyna Zarzecka & Marek Gugała & Iwona Mystkowska & Anna Sikorska & Łukasz Domański, 2022. "Glycoalkaloids in leaves and potato tubers depending on herbicide application with biostimulants," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(4), pages 180-185.
    3. Seyed Basir Mousavi & Saeed Sayfzadeh & Hamid Jabbari & Seyed Alireza Valadabadi & Esmaeil Hadidi Masouleh, 2022. "Effect of auxin foliar application on seed yield and fatty acids composition of two safflower genotypes under late-season drought," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(2), pages 82-88.
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