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• Study of the frost resistance of fennel (Foeniculum vulgare mill.) populations

  67-69

  Gabriella Szekely

  Ildiko Novak

  Maria Tulok

  Zsofia Bodor

  Mariann Hejja

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  Fennel (Foeniculum vulgare subsp. capillaceum var. vulgare) belongs to the Apiaceae family. The drug is used widely in phytotherapy and in the food industry.
  In the course of our investigations, we analysed the frost tolerance of 16 populations of different origin in the second vegetation cycle.
  We classified the frost tolerance of populations into three distinct groups:
  - frost resistant (the populations showed satisfactory overwintering)
  - partial frost tolerant (about 25-60% of the populations were frozen)
  - frost sensitive (all populations were frozen).
  We established that using prewinter covering about 70% of the populations overwintered well.