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Tag Archives: Sweetpotato virus disease

SASHA Brief 2016: Improving Sweetpotato Virus Diagnostics

Virus infection, by a number of different types of viruses, is among the most important constraints of sweetpotato production globally and especially in Sub-Saharan Africa (SSA). Among the more than 30 described viruses infecting sweetpotato, Sweet potato chlorotic stunt virus (SPCSV) and SPFMV are considered the most wide-spread and devastating, …

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‘NASPOT 12 O’ and ‘NASPOT 13 O’ Sweetpotato

Two sweetpotato [Ipomoea batatas L. (Lam.)] cultivars, NASPOT 12 O (Namulonge sweetpotato 12 orange-fleshed) and NASPOT 13 O (Namulonge sweetpotato 13 orange-fleshed) were approved for release by the Ugandan Plant Variety Release Committee (UPVRC) in Nov. 2013 (Ssemakula et al., 2013). This brings to 22, the number of sweetpotato cultivars …

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Presentation: Phase 1 Achievements of the Sweetpotato Support Platform – East and Central Africa

Sweetpotato breeding activities in East and Central Africa aimed to breed new populations and /or variety development with preferred traits, such as sweetpotato viral disease (SPVD) tolerant and quality traits. This presentation highlights crosses between populations and field trials towards achieving the mentioned goals. Additionally the potential and challenges of …

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SASHA Brief 2014: Tackling Virus Resistance

This brief reports on project aimed towards breeding sweetpotato varieties with high level of virus resistance. Additionally, ensure the breeding methods are more efficient in producing improved populations with high expression of sweet potato virus disease (SPVD) resistance and quality characteristics desired by farmers and consumers. briefly selected SPVD resistant …

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Release of Two Orange-fleshed Sweetpotato Cultivars, ‘SPK004’ (‘Kakamega’) and ‘Ejumula’, in Uganda

Two orange-fleshed landrace sweetpotato cultivars: ‘SPK004’ (‘Kakamega’) and ‘Ejumula’ were approved for release by the Ugandan Plant Variety Release Committee in Apr. 2004. This is the third lot of sweetpotato cultivars to be officially released by the sweetpotato program in Uganda, the first two being released in 1995 and 1999. ‘Ejumula’ …

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Extending control of sweet potato diseases in East Africa; Final technical report

The crop protection programme has disseminated information on the control of sweet potato virus disease (SPVD) and SPVD-resistant varieties in both Kagera and Kigoma Regions in northwest Tanzania, largely through maintained and expanded links with other actors in development. It has also developed additional leaflets as part of this activity, …

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Causes and control of virus diseases of sweetpotato in developing countries: is sweetpotato virus disease the main problem

This a progress report documenting the causes and control of virus diseases of sweetpotato in developing countries. Further, it reports on efforts sought to determine if sweetpotato virus disease is the main problem.

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SASHA Brief 10 – 2010: Breeding in Africa for Africa

Traditionally, sweetpotato breeding programs have taken a long time, 7 to 8 years, to produce a new variety. Frequently those new varieties do not suit the various geographic areas and the preferences of diverse farmers and consumers within a country. This flyer explains the work done by the Sweetpotato Action for Security …

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Handbook on Sweetpotato Integrated Crop Management Research Outputs and Programs for East Africa-1995-2006

Sweetpotato productivity is limited by both abiotic and biotic constraints, leading to poor yields at farm level. They include low soil fertility and draught, shortage of improved varieties, shortage of planting materials, pests and diseases particularly viruses, post-harvest problems such as storages, and market availability and demand as well as …

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