Symptomatology and anatomy of stemgrooving (legno riccio) in the grape vine

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kriel_symptomatology_1980.pdf(7.46 MB)
Date
1980
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Publisher
South African Society for Enology and Viticulture
Abstract
External and anatomical differences between organs affected and unaffected by stemgrooving were studied on the wine grape cultivar Chenin blanc and the table grape cultivars Barlinka and Almeria. Cultivar susceptibility, graft transmissibility as well as the effect of the disease on the percentage of take and growth in: the nursery were studied. The probability of an association with other virus diseases was considered. Abnormal behaviour of the vascular cambium of infected vines gave rise to hypertrophy, hyperplasia, hypoplasia and parenchymatoses in the secondary xylem and phloem. In diseased tissues dift'erentiation of pbeDogen proceeded abnormally deep into the phloem rays. Graft transmission was detected anatomically within six months. The disease was found in all the vine growing districts of the Western Cape. Anatomical.studies showed that the disease had been present for many years. A negative effect on the percentage of t:'tKe and growth in the nursery was, recorded. A probable-relationship with corky bark was indicated anatomically and by indexing with LN33.
Description
CITATION: Kriel, G. J. le R., Orffer, C. J. & Beukman, E. F. 1980. Symptomatology and anatomy of stemgrooving (legno riccio) 1n the grape vine. South African Journal of Enology & Viticulture, 1(2):85-101, doi:10.21548/1-2-2417.
The original publication is available at http://www.journals.ac.za/index.php/sajev
Keywords
Stem grooving disease, Wine and wine making, Stem grooving (GS) -- External symptoms, Stem grooving (GS) -- Anatomical effects, Legno riccio in the grape vine
Citation
Kriel, G. J. le R., Orffer, C. J. & Beukman, E. F. 1980. Symptomatology and anatomy of stemgrooving (legno riccio) 1n the grape vine. South African Journal of Enology & Viticulture, 1(2):85-101, doi:10.21548/1-2-2417
URI
http://hdl.handle.net/10019.1/101883
Collections
Research Articles (Viticulture and Oenology)