Netherlands Journal of Plant Pathology

, Volume 93, Issue 4, pp 195–199 | Cite as

Dispersal of Phytophthora nicotianae on tomatoes grown by nutrient film technique in a greenhouse

  • G. Van Voorst
  • E. A. Van Os
  • J. C. Zadoks


Tomatoes were grown in a greenhouse by nutrient film technique (NFT). They were inoculated withPhytophthora nicotianae either by direct inoculation of roots or by adding fungal spores to a container with recirculating nutrient solution. In the first case, the resulting epidemic seemed to be polycyclic, in the second case monocyclic. In both cases, inoculum freely circulated through the NFT system and was present in the nutrient solutions for at least 6 days after inoculation.


Kastomaten werden gekweekt met behulp van voedingsfilmtechniek. Zij werden geinoculeerd metPhytophthora nicotianae hetzij door directe besmetting van wortels, hetzij door een sporensuspensie toe te voegen aan het voorraadvat met voedingsoplossing. In het eerste geval leek een polycyclische epidemie te volgen. In het tweede geval ontstond een monomcyclische epidemie. In beide gevallen werd schimmelinoculum door het gehele gotensysteem rondgepompt. Inoculum bleef gedurende tenminste 6 dagen na inoculatie aantoonbaar in de voedingsoplossing.

Additional keywords

monocyclic epidemic polycyclic epidemic 


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Copyright information

© Koninklijke Nederlandse Planteziektenkundige Vereniging 1987

Authors and Affiliations

  • G. Van Voorst
    • 1
  • E. A. Van Os
    • 2
  • J. C. Zadoks
    • 1
  1. 1.Laboratory of PhytopathologyWageningen Agricultural UniversityWageningenthe Netherlands
  2. 2.Institute of Agricultural Engineering (IMAG)Wageningenthe Netherlands

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