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 422860
Title De opname van fluoride door de wortel en de gevolgen daarvan voor diverse gewassen, in het bijzonder fresia
Author(s) Roorda van Eysinga, J.P.N.L.
Source Landbouwhogeschool Wageningen. Promotor(en): A.C. Schuffelen. - S.l. : s.n. - ISBN 9789022005200 - 83
Department(s) Wageningen University
Publication type Dissertation, internally prepared
Publication year 1974
Keyword(s) vloeistoffen (liquids) - absorptie - emissie - omloop - wortels - sierplanten - iridaceae - oogstschade - luchtverontreiniging - fluoride - liquids - absorption - emission - circulation - roots - ornamental plants - iridaceae - crop damage - air pollution - fluoride
Categories Plant Physiology / Soil Chemistry
Abstract

In a trial with pots, filled with peat, and the treatments 0N, 0P and 0K an unfavourable influence of triple superphosphate on freesias was observed. The crop showed scorching of the leaf margin, that turned out to be a symptom of fluorine excess. Especially monocotyle bulbous and cormous crops were susceptible to excess of fluoride from the substrate. In some trials a relation was found between the contents of fluorine in soil and in the crop, in others a relation between soil fluoride content and percentage of scorched leaf

Over hundred samples of soils were collected in the Netherlands and analysed for total fluorine, 'labile' fluoride and water soluble fluoride.

The pH of the soil was found to be an important factor regulating fluoride uptake and leaf scorch. Evaporation probably is the cause that other factors, such as electrolyte concentration of the soil, the season, the temperature of soil and air, the occurence of diseases, are of influence on leaf scorch while foliar fluorine is not clearly changed.

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