Serological Detection of Dioscorea alata potyvirus on White Yams (Dioscorea rotundata) in Ghana

Oppong, Allen; Lamptey, J. N. L.; Ofori, F. A.; Anno-Nyako, F.; Offei, SK; Dzomeku, B. M.

doi:10.3923/jps.2007.630.634

Cited by 6 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The yam mild mosaic virus (YMMV) (species Yam mild mosaic virus) is the second most important potyvirus to infect yam after YMV [54]. It was first described as yam virus 1 (YV1) and Dioscorea alata virus (DAV) and is very prevalent in Africa, infecting D. alata [27,55]. YMMV is now classified as a distinct potyvirus infecting yams based on the ICTV criteria for potyvirus species demarcation [30,32,34].…”

Section: Genus Potyvirusmentioning

confidence: 99%

A Review of Viruses Infecting Yam (Dioscorea spp.)

Luo

Podolyan

Kidanemariam

et al. 2022

Viruses

View full text Add to dashboard Cite

Yam is an important food staple for millions of people globally, particularly those in the developing countries of West Africa and the Pacific Islands. To sustain the growing population, yam production must be increased amidst the many biotic and abiotic stresses. Plant viruses are among the most detrimental of plant pathogens and have caused great losses of crop yield and quality, including those of yam. Knowledge and understanding of virus biology and ecology are important for the development of diagnostic tools and disease management strategies to combat the spread of yam-infecting viruses. This review aims to highlight current knowledge on key yam-infecting viruses by examining their characteristics, genetic diversity, disease symptoms, diagnostics, and elimination to provide a synopsis for consideration in developing diagnostic strategy and disease management for yam.

show abstract

Section: Genus Potyvirusmentioning

confidence: 99%

A Review of Viruses Infecting Yam (Dioscorea spp.)

Luo

Podolyan

Kidanemariam

et al. 2022

Viruses

View full text Add to dashboard Cite

show abstract

“…Yam, forming an edible tuber, is traditionally propagated vegetatively. This practice is associated with low multiplication ratio (less than 1:10 compared to 1:300 for some cereals), long dormant phase of the tuber prior to sprouting, and planting materials that are infested with pathogens (Odu et al, 1999;Oppong et al, 2007). The above-mentioned problems connected with the acquisition of planting materials culminate into high cost of planting material and, if further compromised, they can lead to high production losses.…”

Section: Introductionmentioning

confidence: 99%

Economic analysis of seed yam production in aeroponics system. Implications on employment and food security in Ghana

Acheampong

Quain

Appiah-Kubi

et al. 2020

J. Agribus. Rural Dev.

View full text Add to dashboard Cite

The supply of seed yams for intensive yam production is hindered by many constraints, including diseases and pest infestations as well as the unavailability of quality planting material. The combination of tissue culture and aeroponics system is perceived to be the way towards clean and adequate supply of seed yam for enhanced yam production. However, the system is considered as expensive for any individual to implement. In order to encourage private sector to participate in this venture, the economic analysis determining the feasibility and viability of using aeroponics in seed yam production was performed. Using data from established tissue culture and aeroponics system in Ghana, the fixed cost and variable cost parameters as well as production costs were obtained. Results revealed that total cost of building aeroponics structure amounted to GH₵ 94,178.00 (USD 17,938.70). Annual cost of aeroponics structure was GH₵ 9,417.82 (USD 1,793.87). Annual total cost of production totalled GH₵ 204,391.75 (USD 38,931.61). Annual net revenue was GH₵ 75,888.00 (USD 14,454.86). Payback period was 15 months and benefit cost ratio was 1.4. Aeroponics system for seed yam production is therefore profitable since short period would be needed to recoup investment. For food security and creation of workplaces, government could partner with the private sector in the establishment of aeroponics systems to increase yam production and export.

show abstract