Dissertation/ Thesis
Epidemiology and control of potato virus Y in Kenya
| العنوان: | Epidemiology and control of potato virus Y in Kenya |
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| المؤلفون: | Onditi, John |
| المساهمون: | van der Vlugt, R.A.A., van Oers, M.M., Nyongesa, M.W. |
| بيانات النشر: | Wageningen University |
| سنة النشر: | 2020 |
| المجموعة: | Wageningen UR (University & Research Centre): Digital Library |
| مصطلحات موضوعية: | Life Science |
| الوصف: | Potato (Solanum tuberosum L.) is the second most important food crop after maize in Kenya. Majority of farmers plant their own saved tubers from the harvest of previous seasons or ware tubers from neighbours and local markets, a practice that is known to contribute to the spread of seed borne diseases and most importantly viruses. Previous virus prevalence surveys indicated high incidences of viruses and virus vectors in the major potato growing regions. Potato viruses are particularly a problem because once a plant is infected, the disease is spread through seed tubers from the mother plant to daughter tubers. The viruses can also be spread by aphids (vectors) which have been reported to occur with high incidence in the major potato growing regions in Kenya. This results in successive reductions in yield and crop quality over seasons of replanting virus infected tubers. Controlling potato viruses are among the things that can be done to improve potato yields in the farmer’s fields.The main aim for conducting this study was to give recommendations which can easily be adopted and immediately be available for potato virus control based on the current potato production situation in Kenya. Chapter 1 therefore gave the background of the potato growing situation in Kenya, the existing intuitional infrastructure in the potato sector and the past efforts in potato viruses control in Kenya. This included a description of the potato virus problem in Kenya including previous potato virus prevalence surveys and efforts by local scientist to propose various methods of managing the viruses and major challenges hindering virus control. Potato virus Y (PVY) was identified as one of the most important viruses in Kenya and also all over the world in all regions where potatoes are grown and was highlighted for a more detailed study among the viruses. There were unanswered questions about the general potato virus epidemiology and control from a farmer’s perspective.In Chapter 2, a farmer household survey of 147 respondents was ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://edepot.wur.nl/515366 |
| DOI: | 10.18174/515366 |
| الاتاحة: | https://research.wur.nl/en/publications/epidemiology-and-control-of-potato-virus-y-in-kenya https://doi.org/10.18174/515366 |
| Rights: | Wageningen University & Research |
| رقم الانضمام: | edsbas.4FD9A5E |
| قاعدة البيانات: | BASE |
| DOI: | 10.18174/515366 |
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