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  • Yield stability and yield depression in sweet potato cultivars susceptible to the sweet potato virus disease.

    Author(s) : Ngeve, J. M.

    Author Affiliation : Institute of Agronomic Research, Nkolbisson, BP 2067, Yaoundé, Cameroon.

    Journal article : Journal of Horticultural Science 1990 Vol.65 No.2 pp.225-230 ref.16

    Abstract : Six of 8 varieties susceptible to varying extents to the sweet potato virus disease (SPVD) complex, with virus severity scores of 30-56% and yield depressions of up to 90%, were judged susceptible to SPVD. No relationship was found between yield stabilitystabilitySubject Category: Properties
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    and tolerance of SPVD: clone 1669, tolerant of SPVD, was rated unstable by 3 of 4 stability assessment methods. The highly SPVD susceptible clone 502, however, with a disease severity score of 56% and a yield depression of up to 90%, was stable by 3 of the methods used.

    ISSN : 0022-1589

    Record Number : 19911618178

    Language of text : English

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Ipomoea batatasipomoea batatasSubject Category: Organism Names
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    , virusesvirusesSubject Category: Organism Names
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    Descriptor(s) : Crop lossescrop lossesSubject Category: Miscellaneous
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    , cropscropsSubject Category: Commodities and Products
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    , Disease resistancedisease resistanceSubject Category: Properties
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    , pathogenspathogensSubject Category: Organism Groups
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    , plant pathogensplant pathogensSubject Category: Organism Groups
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    , plant pathologyplant pathologySubject Category: Disciplines, Occupations and Industries
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    , plant virusesplant virusesSubject Category: Organism Groups
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    , root cropsroot cropsSubject Category: Commodities and Products
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    , stabilitystabilitySubject Category: Properties
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    , Sweet potatoessweet potatoesSubject Category: Commodities and Products
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    , varietal reactionsvarietal reactionsSubject Category: Miscellaneous
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    , yield lossesyield lossesSubject Category: Properties
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    Identifier(s) : phytopathogens, phytopathology, resistance to disease, subsaharan Africa, viruses of plants

    Geographical Location(s) : Africa South of Saharaafrica south of saharaSubject Category: Geographic Entities
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    , CamerooncameroonSubject Category: Geographic Entities
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    Broader term(s) : virusesvirusesSubject Category: Organism Names
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    , IpomoeaipomoeaSubject Category: Organism Names
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    , ConvolvulaceaeconvolvulaceaeSubject Category: Organism Names
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    , SolanalessolanalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , ACP Countriesacp countriesSubject Category: Institutions and Organisations
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    , Central Africacentral africaSubject Category: Geographic Entities
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    , Africa South of Saharaafrica south of saharaSubject Category: Geographic Entities
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    , AfricaafricaSubject Category: Geographic Entities
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , Francophone Africafrancophone africaSubject Category: Geographic Entities
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