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Acceleration of frost hardening in Vaccinium vitis-idaea by nitrogen fertilization

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Abstract

Vaccinium vitis-idaea L. plants were grown in open-top chambers in northern Finland under CO2 enrichment (600–700 ppm) with or without elevated (double ambient) O3. Half of the plants received ammonium nitrate fertilizer equivalent to 200 kg N ha–1 year–1. Frost hardiness during the period of frost hardening was determined three times after the end of the experiment, at the beginning of August, September and October. The results indicate that frost hardening of the Vaccinium vitis-idaea is accelerated by N fertilization. However, CO2 and O3 enrichment had no measurable effect on frost hardiness.

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Authors and Affiliations

  1. Department of Biology, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland

    Kari Taulavuori, Erja Taulavuori & Kari Laine

  2. Finnish Forest Research Institute, Muhos Research Station, Kirkkosaarentie 7, 91500, Muhos, Finland

    Kari Taulavuori

  3. Department of Mathematical Sciences, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland

    Ahti Niinimaa

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  1. Kari Taulavuori
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  2. Erja Taulavuori
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  3. Ahti Niinimaa
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  4. Kari Laine
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Taulavuori, K., Taulavuori, E., Niinimaa, A. et al. Acceleration of frost hardening in Vaccinium vitis-idaea by nitrogen fertilization. Oecologia 127, 321–323 (2001). https://doi.org/10.1007/s004420100661

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  • DOI: https://doi.org/10.1007/s004420100661

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