A commercial iron fertilizer increases the survival of Fusarium oxysporum f. sp. orthoceras propagules in a wheat flour-kaolin formulation

Dorette Müller-Stöver*, Joachim Sauerborn

*Corresponding author for this work
6 Citations (Scopus)

Abstract

Fusarium oxysporum f.sp. orthoceras, a potential biocontrol agent against the parasitic weed Orobanche cumana Wallr., has proven to be efficacous under greenhouse conditions when formulated as wheat-kaolin granules. To help minimize the loss of viable fungal propagules during the formulation process, the addition of a commercial fertilizer containing the iron chelate of EDDHA to the formulation was investigated. The proportion of surviving propagules was significantly increased after adding the fertilizer. However, growing conidia in fertilizer-amended liquid medium did not reduce losses in viability during formulation. The efficacy of the formulated fungus and the storability at room temperature for the first 3 months was not affected by the iron fertilizer. The protective effect could neither be obtained with the chelator EDDHA alone nor with FeEDTA or FeSO4.

Original languageEnglish
JournalBiocontrol Science and Technology
Volume17
Issue number6
Pages (from-to)597-604
Number of pages8
ISSN0958-3157
DOIs
Publication statusPublished - 2007
Externally publishedYes

Keywords

  • FeEDDHA
  • Formulation
  • Fusarium oxysporum
  • Iron chelate
  • Mycoherbicide
  • Orobanche spp.

Fingerprint

Dive into the research topics of 'A commercial iron fertilizer increases the survival of Fusarium oxysporum f. sp. orthoceras propagules in a wheat flour-kaolin formulation'. Together they form a unique fingerprint.

Cite this