DOI: 10.18174/515366
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Epidemiology and control of potato virus Y in Kenya

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Cited by 2 publications
(8 citation statements)
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References 81 publications
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“…Kenyan farmers were found to grow mainly two cultivars (Shangi 60.2% and Kombere 15.5%) while the rest of the cultivars were grown only in few farms. It is therefore difficult to draw conclusions about possible levels of resistances in the cultivars which were underrepresented; and (3) The results obtained in this study were also confirmed by in a separate controlled virus resistance screening experiment for PVY, conducted both in the greenhouse and in the field (Onditi 2020). Cultivars were inoculated with PVY and grown both in the greenhouse and in the field while replanting harvested tubers over three consecutive seasons (Onditi 2020).…”
Section: Discussionmentioning
confidence: 70%
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“…Kenyan farmers were found to grow mainly two cultivars (Shangi 60.2% and Kombere 15.5%) while the rest of the cultivars were grown only in few farms. It is therefore difficult to draw conclusions about possible levels of resistances in the cultivars which were underrepresented; and (3) The results obtained in this study were also confirmed by in a separate controlled virus resistance screening experiment for PVY, conducted both in the greenhouse and in the field (Onditi 2020). Cultivars were inoculated with PVY and grown both in the greenhouse and in the field while replanting harvested tubers over three consecutive seasons (Onditi 2020).…”
Section: Discussionmentioning
confidence: 70%
“…Over the past few decades, there have been major changes in the types of potato cultivars grown by the Kenyan farmers. For instance, Shangi which was grown by only 5% of farmers in 2008 is now (2016) the main cultivars grown by 60.2% of the farmers (Crissman 1993;Kaguongo et al 2008;Onditi 2020).…”
Section: Discussionmentioning
confidence: 99%
“…Surveys indicated that PVY remained a problem with a high prevalence of 77.6% (Gildemacher et al 2009), 70.0% (Muthomi et al 2009) and 27.0% (Nyamwamu et al 2014) in the major potato growing areas. In a recent survey for PVY strains in Kenya, PVY N-Wi was found to be the most prevalent PVY strain in cultivars grown in the major potato growing counties (Onditi 2020). In different countries and continents in the world, there are reports of variations in the prevalence rates of the different PVY strains which have also been changing over time with PVY N-Wi and PVY NTN now being most widespread.…”
Section: Discussionmentioning
confidence: 99%
“…All the above genotypes were obtained as in vitro plantlets from the potato tissue culture laboratory at KALRO, Potato Research Centre, Tigoni and were free of the six major potato viruses: Potato virus Y (PVY), Potato leaf roll virus (PLRV), Potato virus X (PVX), Potato virus M (PVM), Potato virus A (PVA) and Potato virus S (PVS) as tested by double antibody sandwich enzyme linked immune-sorbent assay (DAS-ELISA). PVY strains for screening resistance were identified based on a survey of the PVY strains that occured in the five major potato growing areas in Kenya and where PVY N-Wi was the most prevalent PVY strain (Onditi 2020). PVY O , also identified from the above survey, was included in this study mainly to compare its ability to cause diseases in potato cultivars in relation to PVY N-Wi .…”
Section: Potato Genotypes and Pvy Strains For Pvy Resistance Screeningmentioning
confidence: 99%
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