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Factors affecting the development of Phytophthora alni ssp. alni infections in Alnus glutinosa L

Author

Listed:
  • P. Štochlová

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic)

  • K. Novotná

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic)

  • K. Černý

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic
    Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

Phytophthora alni is responsible for a devastating disease in alder and changes in the environment of riparian and alder carr ecosystems. One of the main approaches to solve this problem is to find naturally resistant genotypes using a series of artificial inoculation experiments, to preserve and use them in programmes for resistance breeding. However, the results of artificial inoculation experiments (screening for natural resistance) can be affected by several factors. The potential effect of the social status of the host, the presence of naturally occurring P. alni infections, the season and the size of the sections of branches used were studied in a series of infection experiments. It was found out that the development of lesions was significantly affected by the year season (the largest lesions were found in summer) and by the presence of naturally occurring P. alni infections in the sampled trees (the lesions were five times larger in healthy trees and trees recovered from natural P. alni infections compared to trees with active disease development).

Suggested Citation

  • P. Štochlová & K. Novotná & K. Černý, 2012. "Factors affecting the development of Phytophthora alni ssp. alni infections in Alnus glutinosa L," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 58(3), pages 123-130.
    • Handle: RePEc:caa:jnljfs:v:58:y:2012:i:3:id:26-2011-jfs
    DOI: 10.17221/26/2011-JFS
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    References listed on IDEAS

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    1. Karel Černý & Veronika Strnadová, 2010. "Phytophthora alder decline: disease symptoms, causal agent and its distribution in the Czech Republic," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 46(1), pages 12-18.
    2. V. Holub & K. Černý & V. Strnadová & M. Mrázková & B. Gregorová & Š. Gabrielová, 2010. "The survey of some factors affecting bark lesion development caused by Phytophthora cactorum on common beech and other broadleaved trees," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 56(3), pages 93-100.
    3. V. Strnadová & K. Černý & V. Holub & B. Gregorová, 2010. "The effects of flooding and Phytophthora alni infection on black alder," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 56(1), pages 41-46.
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