{"title":"Single and mixed infections of six major potato viruses in four major potato-growing districts of eastern Ethiopia","authors":"","doi":"10.1016/j.cropro.2024.106860","DOIUrl":null,"url":null,"abstract":"<div><p>Potato (<em>Solanum tuberosum</em> L.) is a co-staple food and a source of cash income for the smallholder farmers' in eastern Ethiopia; however, the productivity of the crop is constrained by biotic and abiotic factors. Of which viruses are considered to be major yield limiting factor, but information is lacking on the prevalence and distribution of potato viruses in major growing districts of eastern Ethiopia. This research is therefore initiated to assess and determine the status of six major and multiple potato viruses' infection at farmers' fields during the main rainy and irrigation seasons in four major potato-growing districts of eastern Ethiopia. The dot-blot assays performed for 1000 leaf samples collected from 20 farmers' fields during the two seasons indicated an overall high incidence (71.9% samples detected positive for at least one virus) of potato virus in the surveyed districts of the regions. The most prevalent (19.4%) type of infection was the mixture of all six potato viruses. Among the major viruses, the results also confirmed PVM as the most prevalent (57.3%) virus followed by PVY (48.1%), whereas PVA (45.1%), which was not commonly detected in the other regions of the country, was detected as third most prevalent virus in the current study. The comparison of the results of virus detection in the samples from two seasons indicated remarkable differences in the incidence and prevalence of viruses, where an increasing trend of virus incidence and mixed virus infections from 59 to 84.8% and 41.2 to 72%, respectively, were recorded from rainy to irrigation season. The two viruses; PVX and PVS, which were identified as least prevalent during rainy season, were ranked the 3rd and 4th most prevalent viruses after PVM and PVY during irrigation season. The detected high incidence of virus in potato plants during this first systemic research conducted suggested the importance of continuing the intensive survey and detecting the status of viruses' infection in potato growing districts of eastern Ethiopia. It is also suggested to create awareness among smallholder farmers about the management practices to reduce the effects of viruses’ infection on the productivity of potato in eastern Ethiopia.</p></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crop Protection","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0261219424002886","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Potato (Solanum tuberosum L.) is a co-staple food and a source of cash income for the smallholder farmers' in eastern Ethiopia; however, the productivity of the crop is constrained by biotic and abiotic factors. Of which viruses are considered to be major yield limiting factor, but information is lacking on the prevalence and distribution of potato viruses in major growing districts of eastern Ethiopia. This research is therefore initiated to assess and determine the status of six major and multiple potato viruses' infection at farmers' fields during the main rainy and irrigation seasons in four major potato-growing districts of eastern Ethiopia. The dot-blot assays performed for 1000 leaf samples collected from 20 farmers' fields during the two seasons indicated an overall high incidence (71.9% samples detected positive for at least one virus) of potato virus in the surveyed districts of the regions. The most prevalent (19.4%) type of infection was the mixture of all six potato viruses. Among the major viruses, the results also confirmed PVM as the most prevalent (57.3%) virus followed by PVY (48.1%), whereas PVA (45.1%), which was not commonly detected in the other regions of the country, was detected as third most prevalent virus in the current study. The comparison of the results of virus detection in the samples from two seasons indicated remarkable differences in the incidence and prevalence of viruses, where an increasing trend of virus incidence and mixed virus infections from 59 to 84.8% and 41.2 to 72%, respectively, were recorded from rainy to irrigation season. The two viruses; PVX and PVS, which were identified as least prevalent during rainy season, were ranked the 3rd and 4th most prevalent viruses after PVM and PVY during irrigation season. The detected high incidence of virus in potato plants during this first systemic research conducted suggested the importance of continuing the intensive survey and detecting the status of viruses' infection in potato growing districts of eastern Ethiopia. It is also suggested to create awareness among smallholder farmers about the management practices to reduce the effects of viruses’ infection on the productivity of potato in eastern Ethiopia.
期刊介绍:
The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics:
-Abiotic damage-
Agronomic control methods-
Assessment of pest and disease damage-
Molecular methods for the detection and assessment of pests and diseases-
Biological control-
Biorational pesticides-
Control of animal pests of world crops-
Control of diseases of crop plants caused by microorganisms-
Control of weeds and integrated management-
Economic considerations-
Effects of plant growth regulators-
Environmental benefits of reduced pesticide use-
Environmental effects of pesticides-
Epidemiology of pests and diseases in relation to control-
GM Crops, and genetic engineering applications-
Importance and control of postharvest crop losses-
Integrated control-
Interrelationships and compatibility among different control strategies-
Invasive species as they relate to implications for crop protection-
Pesticide application methods-
Pest management-
Phytobiomes for pest and disease control-
Resistance management-
Sampling and monitoring schemes for diseases, nematodes, pests and weeds.