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Titolo:
The incidence of sweet potato virus disease and virus resistance of sweet potato grown in Uganda
Autore:
Aritua, V; Adipala, E; Carey, EE; Gibson, RW;
Indirizzi:
Nat Resources Inst, Chatham Maritime ME4 4TB, Kent, England Nat Resources Inst Chatham Maritime Kent England ME4 4TB B, Kent, England Makerere Univ, Dept Crop Sci, Kampala, Uganda Makerere Univ Kampala Uganda erere Univ, Dept Crop Sci, Kampala, Uganda Int Potato Ctr, Reg Head Off SubSaharan Africa, Nairobi, Kenya Int Potato Ctr Nairobi Kenya Head Off SubSaharan Africa, Nairobi, Kenya Namulonge Agr & Anim Prod Res Inst, Kampala, Uganda Namulonge Agr & Anim Prod Res Inst Kampala Uganda Inst, Kampala, Uganda
Titolo Testata:
ANNALS OF APPLIED BIOLOGY
fascicolo: 3, volume: 132, anno: 1998,
pagine: 399 - 411
SICI:
0003-4746(199806)132:3<399:TIOSPV>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Keywords:
sweet potato; aphids; whiteflies; virus; sweet potato virus disease; SPVD; resistance; Uganda; Africa;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Gibson, RW Nat Resources Inst, Cent Ave, Chatham Maritime ME4 4TB, Kent, England Nat Resources Inst Cent Ave Chatham Maritime Kent England ME4 4TB
Citazione:
V. Aritua et al., "The incidence of sweet potato virus disease and virus resistance of sweet potato grown in Uganda", ANN AP BIOL, 132(3), 1998, pp. 399-411

Abstract

Sweet potato virus disease (SPVD) was common (25-30% average incidences), and farmers recognised it as an important disease, in sweet potato crops insouthern Mpigi, Masaka and Rakai Districts in Uganda, but SPVD was rare inSoroti and Tororo Districts. Whiteflies, which are the vector of sweet potato chlorotic stunt crinivirus (SPCSV) a component cause of SPVD, were correspondingly common on sweet potato crops in Mpigi and rare on crops in Tororo. However, aphids, which are the vectors of sweet potato feathery mottle potyvirus (SPFMV), the other component cause of SPVD, were not found colonising sweet potato crops, and itinerant alate aphids may be the means of transmission. Different sweet potato cultivars were predominant in the different districts surveyed and four local cultivars obtained from Kanoni in S. Mpigi, where whiteflies and SPVD were common, were more resistant to SPVD than four cultivars from Busia in Tororo District, where whiteflies and SPVD were rare. However, nationally released cultivars were even more resistant than the local cultivars from Kanoni. Yield results and interviews with farmers indicated that farmers in S. Mpigi were making compromises in their choice of cultivars to grow, some key factors being SPVD susceptibility, and the yield, taste, and marketability, duration of harvest and in-ground storability of the storage roots. These compromises need to be included in an assessment of yield losses attributable to SPVD.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 14:53:37