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Viruses and virus-like diseases affecting sweet potato subsistence farming in southern Tanzania








Viruses and virus-like diseases affecting sweet potato subsistence farming in southern Tanzania



Accession: 020590650



Related references

Karyeija, R.F.; Gibson, R.W.; Valkonen, J.P.T., 1998: The significance of sweet potato feathery mottle virus in subsistence sweet potato production in Africa. Plant Disease 82(1): 4-15, Jan

Gibson, R.W.; Kaitisha, G.C.; Randrianaivoarivony, J.M.; Vetten, H.J., 1998: Identification of the East African strain of sweet potato chlorotic stunt virus as a major component of sweet potato virus disease in Southern Africa. Plant Disease 82(9): 1063, Sept

Hahn S.K., 1979: Effects of viruses sweet potato virus disease on growth and yield of sweet potato ipomoea batatas. Sweet potato (I. batalas L.) virus disease (SPVD) causes severe disease symptoms of various combinations of leaf strapping, vein-clearing, puckering and stunting. The disease is widespread, especially in Africa, and yield is adversely affected, th...

Sheffield, F.M.L., 1957: Virus diseases of sweet potato in East Africa I Identification of the viruses and their insect vectors. At least 2 viruses attack sweet potatoes in East Africa. Virus A, found in only 1 locality, causes a relatively mild disease and is transmitted by Myzus persicae, which can acquire it in a 2-minute feeding. Virus B is widespread throughout East Af...

Milgram, M.; Cohen, J.; Loebenstein, G., 1996: Effects of sweet potato feathery mottle virus and sweet potato sunken vein virus on sweet potato yields and rates of reinfection of virus-free planting material in Israel. Yield reductions of ca 50% or more were observed in field plots infected with both sweet potato feathery mottle virus (SPFMV) and sweet potato sunken vein virus (SPSVV) ('complex'), compared with plots planted with virus-free propagation...

Feo, L. di; Castellano, P.; Biderbost, E.; Nome, S.F., 1999: Resistant reaction of the sweet potato (Ipomoea batatas) cultivar Morada INTA to the sweet potato feathery mottle virus and sweet potato mild speckling virus complex. The potyviruses sweet potato feathery mottle virus (SPFMV) and sweet potato mild speckling virus (SPMSV) have been associated with sweet potato chlorotic dwarf disease. By testing isolates, it was endeavoured not only to determine whether single o...

Weidemann, H.L.; Wigger, E.A., 1985: Symptom induction by potato virus Y in potato plants doubly infected with potato viruses Y and S. A contribution to the theme of severe and mild virus diseases in seed potato production. Potato plants cv. Grata usually showed no symptoms when infected with PVS, mild symptoms with PVY, but severe symptoms with PVS + PVY. These observations also obtained for 8 other potato cultivars inoculated in glasshouse tests and 4 cultivars nat...

Li, F.; Xu, D.; Abad, J.; Li, R., 2012: Phylogenetic relationships of closely related potyviruses infecting sweet potato determined by genomic characterization of Sweet potato virus G and Sweet potato virus 2. Complete nucleotide sequences of <i>Sweet potato virus G</i> (SPVG) and <i>Sweet potato virus 2</i> (SPV2) were determined to be 1,8 and 1,731 nucleotides, respectively, excluding the 3?-poly(A) tail. Their genomic organiza...

Anonymous, 1990: Control of virus and virus-like diseases of potato and sweet potato. Report of the III planning conference held at the International Potato Centre, Nov. 20-22, 1989. The 31 papers presented at this meeting are included in this volume. The objectives of the planning conference were: to review CIP's potato virology work since the last planning conference (1980); to review new activities in sweet potato viro...

Anonymous, 2008: Occurrence of Sweet potato feathery mottle virus and Sweet potato leaf curl Georgia virus on sweet potato in India