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Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104011
Title Characterization and ecological aspects of rice yellow mottle virus in Kenya
show extra info.
[door] W. Bakker
Author(s) Bakker, W.
Publisher Wageningen : Pudoc
Publication year 1974
Description 152 p.
Series title Verslagen Landbouwkundige Onderzoekingen (829)
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
ISBN 9022005410
Tutors Want, Prof. Dr. Ir. J.P.H. van der
Graduation date 1974-11-22
Dissertation no. 604
Author abstract show abstract

Rice yellow mottle virus(RYMV)is the causal pathogen of yellow mottle of rice in the area around Kisumu near Lake Victoria in Kenya. Affected plants show a yellow or orange discolouration of the leaves, reduced tillering and stunting of the plants, and sterility of the flowers. The results of this study gave the following cryptogram forRYMVR/1:1.4/23:S/S:S/Cl.RYMVis easily mechanically transmissible. Experimentally a limited number of plants belonging to the family Gramineae only were found to be a host for the virus. Rice was the only host found naturally infected withRYMV.Beetles belonging to the subfamilies Criocerinae, Cryptocephalinae, Galerucinae, Halticinae and Hispinae of the family Chrysomelidae, and the long-homed grasshopper Conocephalus merumontanus Sjöstedt (Tettigoniidae) also transmitted the virus. Chaetocnema pulla Chapuis (Halticinae) proved to carry the virus in the field.

RYMVis a stable virus with a particle diameter of about 25 nm and sediments as a single component. The base composition of theRNAis similar, but not identical to that of cocksfoot mottle virus. Serologically no relationship nor any other affinity was established betweenRYMVand a number of other isometric plant viruses of comparable size.

Infected rice is considered to be the main source of the virus in the rice fields. Control of the disease must be sought in cultivation practices and growing of rice with short vegetative periods. Breeding of rice varieties for resistance toRYMVhas to be initiated.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,604
FORUM ; STACKS ; NN08200,604
Keyword(s) (cab) plant diseases / plant pests / plant protection / plant pathology / plant disorders / rice / oryza sativa / plant viruses / viruses / taxonomy / kenya
Categories Plant Viruses / Rice
Publication type PhD thesis
Language English
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