Can silicon improve defense responses of cucumber seedlings to Pythium-induced damping off disease?

A. M. Al Sadi, F. A. Al Said, M. L. Deadman, A. Drenth, E. A B Aitken

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Laboratory experiments were established to study the influence of silicon on improvements in the defense response of cucumber seedlings to Pythium-induced damping-off disease. Supplementing cucumber seedlings with different concentrations of silicon (0, 100, 200, 500, 1000 and 2500 ppm) for 7 days prior to inoculation with P. aphanidermatum isolates did not result in a significant reduction in seedling mortality at 20 and 25°C. Extending the period of supplementation to 14 days also did not result in any improvement of defense responses. In addition, mortality levels in the presence of silicon were not reduced when cucumber seedlings were inoculated with three isolates of P. aphanidermatum differing in their aggressiveness levels (weak, moderate and very aggressive). This could be related to a rapid infection by Pythium of cucumber seedlings in relation to a slower rate of induction of defense responses by silicon.

Original languageEnglish
Title of host publicationActa Horticulturae
Pages441-444
Number of pages4
Volume871
Publication statusPublished - Aug 31 2010

Publication series

NameActa Horticulturae
Volume871
ISSN (Print)05677572

Keywords

  • Damping-off
  • Kasil 2040
  • Pythium
  • Resistance

ASJC Scopus subject areas

  • Horticulture

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  • Cite this

    Al Sadi, A. M., Al Said, F. A., Deadman, M. L., Drenth, A., & Aitken, E. A. B. (2010). Can silicon improve defense responses of cucumber seedlings to Pythium-induced damping off disease? In Acta Horticulturae (Vol. 871, pp. 441-444). (Acta Horticulturae; Vol. 871).