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Data · dataset · 2017

Dataset for: Standard evaluation trial for bacterial wilt (BW) resistance documentation of CIP advanced breeding clones

Listed in International Potato Center

Bacterial wilt (BW) or brown rot is caused by the bacteria Ralstonia solanacearum (Smith), previously called Pseudomonas solanacearum.

Description

The disease is a major constraint to potato production in most tropical and subtropical regions and a threat to the potato seed industry in European countries (EPPO/CABI 1997; Elphinstone 2005). Latent infection is responsible for spread of the disease and overcoming of resistance.

Disease symptoms include wilting, stunting and yellowing of the foliage and external symptoms on the tuber are visible at the harvest when infection is severe. Tuber symptoms are often described as brown rot. Clones or varieties are evaluated in fields naturally infested by R. solanacearum or inoculated with the bacteria.

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Wilt severity is evaluated using a three point scale (1=healthy plant, 2= below or equal to 50% plan wilted, 3= above 50% plant wilted and eventually dead). Al harvest, the percentage of symptomatic tubers is computed by recording the number of symptomatic tubers and the number of the healthy looking tubers in all plants of the experimental unit. To measure latent infections of tubers only asymptomatic tubers of selected clones are analyzed infecting with bacteria.

For each clone and over all replications, a minimum of 30 tubers of any size above 30mm and without visible symptoms is selected and random in the field. Individual asymptomatic tuber are analyzed with the ELISA test or NCM- ELISA.

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Where it is published

Catalogue records · 1

Topics

Stated by source
Agricultural Sciences
Inferred from text
Disease 75%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
International Potato Centerdoi:10.21223/P3/U0WIYZ13 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[disease].local:disease:diseaseenrichment · data cipotato orgkeyword-concept-rules@1.0.0title+description (75%)
concepts[field].dataverse_subject:agricultural-sciencessource · data cipotato orgconnector:data_cipotato_org@1.0.0/subjects
created_datesource · data cipotato orgconnector:data_cipotato_org@1.0.0
descriptionsource · data cipotato orgconnector:data_cipotato_org@1.0.0/description
publication_datesource · data cipotato orgconnector:data_cipotato_org@1.0.0
titlesource · data cipotato orgconnector:data_cipotato_org@1.0.0/name
updated_datesource · data cipotato orgconnector:data_cipotato_org@1.0.0
version_labelsource · data cipotato orgconnector:data_cipotato_org@1.0.0