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Chilling stress applied to broccoli transplants of different age affects yield of the plants cultivated in summer

Author

Listed:
  • A. Grabowska

    (Department of Vegetable and Medicinal Plants, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

  • E. Kunicki

    (Department of Vegetable and Medicinal Plants, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

  • A. Kalisz

    (Department of Vegetable and Medicinal Plants, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

  • R. Wojciechowska

    (Department of Botany and Plant Physiology, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

  • M. Leja

    (Department of Botany and Plant Physiology, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

  • A. Sękara

    (Department of Vegetable and Medicinal Plants, Faculty of Horticulture, University of Agriculture in Krakow, Kraków, Poland)

Abstract

Broccoli is native to moderate climatic zone, and summer cultivation of this species in Central Europe conditions leads to a decrease of heads quality. The aim of present investigations was application of dark-chilling at 2°C for 1 and 2 weeks to transplants of various ages to enhance its tolerance against adverse conditions in the field and to modify the yield potential. Broccoli cv. Monaco F1 can be recommendedfor summer production in Central Europe, because of high yield potential and lack of buttoning in high temperature conditions. Dark-chilling of 4-week-old transplants for two weeks significantly increased the yield, but also the percentage of stems with hollows as compared to control. Significant advancing of harvest together with prolongation of the harvest's period can be achieved by the use of 6 and 8-week-old transplants chilled for 2 weeks. Dark-chilling of 10-week-old transplants resulted in forming of smallest heads with the highest percentage of hollow stems.

Suggested Citation

  • A. Grabowska & E. Kunicki & A. Kalisz & R. Wojciechowska & M. Leja & A. Sękara, 2014. "Chilling stress applied to broccoli transplants of different age affects yield of the plants cultivated in summer," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 41(2), pages 71-79.
    • Handle: RePEc:caa:jnlhor:v:41:y:2014:i:2:id:250-2013-hortsci
    DOI: 10.17221/250/2013-HORTSCI
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