ISSN:
1439-0523
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Cucumber production in Spain is being threatened by the cucumber vein yellowing virus (CVYV), which has been causing severe yield losses since it was first detected in 2000. Although most of the Spanish cucumber production is based on hybrid cultivars, farmers have grown cucumber landraces for centuries. A collection of 46 Spanish cucumber landraces, four melon cultivars and one accession of Cucumis africanus, were evaluated for resistance to CVYV. An isolate of CVYV from Almeria, closely related to CVYV from Israel, was used. CVYV was mechanically transmitted and detected by reverse transcriptase polymerase chain reaction and molecular hybridization. Only mild infections were observed in melons, while the wild species C. africanus was susceptible to this disease. Most of the cucumber accessions assayed were highly susceptible to CVYV and showed vein-clearing symptoms, severe growth reduction and a high viral accumulation. Several cucumber accessions were partially resistant to this virus, displaying mild symptoms and a significantly reduced viral accumulation. These partially resistant varieties could be cultivated under integrated production systems, and also be used as resistance sources to develop new cucumber hybrids resistant to CVYV.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1046/j.1439-0523.2003.00882.x
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