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.

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Record number 24077
Title Quantitative studies on resistance to Polymyxa betae and beet necrotic yellow vein virus in beet = Kwantitatief onderzoek naar resistentie tegen Polymyxa betae en het bieterhizomanievirus in de biet
Author(s) Paul, H.
Source Agricultural University. Promotor(en): J.C. Zadoks; D. Peters. - S.l. : Paul - ISBN 9789054851912 - 115
Department(s) Laboratory of Phytopathology
Laboratory of Virology
Publication type Dissertation, externally prepared
Publication year 1993
Keyword(s) beta vulgaris - suikerbieten - plantenziekteverwekkende schimmels - plantenziekten - plantenvirussen - plantenveredeling - ziekteresistentie - plaagresistentie - polymyxa betae - sugarbeet - plant pathogenic fungi - plant diseases - plant viruses - plant breeding - disease resistance - pest resistance
Categories Sugarbeet / Plant Defence, Plant Resistance
Abstract <p>Beet necrotic yellow vein virus (BNYVV) causes rhizomania in sugar beet. The virus is transmitted by the soil-borne fungus <em>Polymyxa betae</em> . Rhizomania in sugar beet can cause serious losses in sugar yield. Breeding for resistance is the most promising way to control the disease. Several aspects of quantitative screening for resistance to rhizomania were investigated. A greenhouse test was established to screen and select beet seedlings for resistance to BNYVV. Plants were grown in a mixture of sand and infested soil. Virus concentrations were determined by enzyme- linked immunosorbent assay (ELISA). Data of various fields were analysed using multiplicative models for cultivar by location interaction. Interactions for yield and quality parameters were described in terms of virus concentrations in beet plants grown in the greenhouse and in the field. After screening various beet material of the sections <em>Beta</em> , <em>Corollinae</em> and <em>Procumbentes,</em> it was concluded that resistance to <em>P. betae</em> could have some effect on the infection with BNYVV, but low numbers or even absence of resting spores did not always result in low virus concentrations. When viruliferous zoospores of <em>P. betae</em> were used to inoculate plants, resistant accessions often had virus concentrations similar to those of the susceptible control. Resistant and susceptible accessions could only be distinguished shortly after inoculation with zoospores or after transplanting the inoculated plants into sand. it is recommended to combine resistant accessions, which differ genetically and in their mechanism of resistance, in order to obtain sugar beet cultivars with a high level of resistance to rhizomania.
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