Articles
QUICK DETECTION OF THE PRINCIPAL APPLE AND PEAR VIRUS DISEASES
Article number
309_56
Pages
377 – 384
Language
Abstract
To detect quickly and all the year round the principal virus and virus-like diseases of apple and pear, the indexing have been transfered from nursery to glasshouse or lab.
The detection of the 3 virus -apple mosaic (ApMV), apple chlorotic leaf spot (CLSV) and apple stem grooving (SGV)- by the DAS ELISA test has been very uncertain because the virus concentration is low and variable in the different organs.
The detection of the 3 virus -apple mosaic (ApMV), apple chlorotic leaf spot (CLSV) and apple stem grooving (SGV)- by the DAS ELISA test has been very uncertain because the virus concentration is low and variable in the different organs.
On the other hand, the glasshouse indexing on vitropropagated indicators has been reliable for : CLSV and apple stem pitting – pear vein yellows detected on Pyronia veitchii, apple rubbery wood on Prunus avium (F12-1 or LV 37), SGV on Virginia crab.
The indexing is less exact or longer for ApMV and apple proliferation on Malus pumila cv Charden.
The pear blister canker viroid and the pear decline cannot be detected on Pyrus communis A20 and Williams.
Authors
J.C. Desvignes, R. Boyé, D. Cornaggia, N. Grasseau
Keywords
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