Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 516292
Title Overzichtsdocument: 7 jaar Chrysant op water
Author(s) Vermeulen, Tycho; Blok, Chris; Eveleens, Barbara
Source Bleiswijk : Wageningen University & Research, BU Glastuinbouw (Rapport GTB 1430) - 22
Department(s) WUR GTB Teelt & Gewasfysiologie
WUR GTB Gewasgezondheid
WUR GTB Gewasgezondheid Bodem en Water
Publication type Research report
Publication year 2017
Keyword(s) greenhouse crops - greenhouse horticulture - greenhouses - chrysanthemum - hydroponics - water systems - microbial contamination - inoculation - kasgewassen - glastuinbouw - kassen - hydrocultuur - watersystemen - microbiële besmetting - inoculatie
Categories Floriculture
Abstract Over a period of seven years (2009-2016) hydroponic chyrsanthemum cultivation has been developed and
tested in practice. Where the system delivered up to 25% higher yields at smaller scale, the larger systems of
250-300 m2 turned out very sensitive to root infection. Research then focussed to understanding the key factors
that caused the plants to become sensitive. However, where the larger system showed much disease incidence
every summer for three years in a row, at smaller scale the symptoms could not be induced despite application
of extreme cultivation measures.
The studies were the first to apply next generation sequencing to microbial populations in cultivation systems.
The results gave evidence for shifting population dynamics due to inoculation and water temperature. Also the
inoculation with beneficial microbes was found to have a positive effect on recovery of the roots upon infection.
This effect, however, was only found in the research-facility. At larger scale potential beneficial effect could not
prevent significant yield loss.
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