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Tag Archives: Sweetpotato diseases

Tudo o Que Sempre Quis Saber sobre a Batata-doce – Volume 4

Este manual contém “Tudo o que sempre quis saber sobre a batata-doce”. Esperamos que o manual seja útil para os que estão envolvidos na capacitação de extensionistas e pessoal de ONGs a diferentes níveis, e que estes por sua vez irão capacitar produtores duma maneira prática que os ajuda a construir as …
  • Size: 2.9 MB
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  • Pages: 69

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Tout ce que vous avez toujours voulu savoir à propos de la patate douce – Volume 4

Tout ce que vous avez toujours voulu savoir à propos de la patate douce. Manuel de FDF pour le projet Atteindre les Agents du Changement. Thème 6: Gestion et Production de la Patate Douce. Ce thème, traite de l’importance d’une la planification anticipée pour assurer la disponibilité des boutures en quantité …
  • Size: 4.5 MB
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  • Pages: 73

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Vyote Unavyopaswa Kujua Kuhusu Viazi Vitamu – Juzuu ya 4

Vyote Unavyopaswa Kujua Kuhusu Viazi Vitamu Kitabu cha mafunzo kwa wakufunzi cha mradi wa kuwafikia wadau wa Mabadiliko. Juzuu ya 4. Mada ya 6: Uzalishaji na uangalizi wa viazi vitamu inahusu umuhimu wa kupangilia mapema kuhakikisha kuwa vipando vya kutosha vinapatikana mwanzoni mwa msimu wa mvua, matayarisho xvii ya shamba, mbinu za upandaji, …
  • Size: 6.3 MB
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  • Pages: 71

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Everything You Ever Wanted to Know About Sweetpotato TOT Manual – Volume 4

prodproThis manual contains ‘Everything you ever wanted to know about sweetpotato’. We hope that it will be useful for those involved in training extensionists and NGO staff at different levels, and that they in turn will train farmers in practical ways that help them to build their problem solving and …
  • Size: 4.4 MB
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  • Pages: 59

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First report of Sweet potato leaf curl virus infecting sweet potato in Argentina

This is a report of the complete nucleotide sequence of a begomovirus infecting sweet potato in the Northeastern region of Argentina. Sequence comparisons indicated that the isolate under study has the highest nucleotide sequence identity (93.6 %) with Sweet potato leaf curl virus Puerto Rico. According to the current taxonomic criteria for begomovirus …
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  • Pages: 4

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Sweetpotato Viruses Cause Disease in Sweet Potato and Related Ipomoea spp.: Fulfilling Koch’s Postulates for a Divergent Group in the Genus Begomovirus

Sweet potato (Ipomoea batatas) and related Ipomoea species are frequently infected by monopartite begomoviruses (genus Begomovirus, family Geminiviridae), known as sweepoviruses. Unlike other geminiviruses, the genomes of sweepoviruses have been recalcitrant to rendering infectious clones to date. Thus, Koch’s postulates have not been fullfilled for any of the viruses in …
  • Size: 246.8 kB
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  • Pages: 6

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Virus and Phytoplasma Diseases

Sweetpotatoes are vegetatively propagated from vines, root slips (sprouts) or tubers, and farmers often take vines for propagation from their own fields year after year. Thus, if virus diseases are present in the field they will inevitably be transmitted with the propagation material to the newly planted field, resulting in …
  • Size: 1.8 MB
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  • Pages: 30

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Interactions between a crinivirus, an ipomovirus and a potyvirus in coinfected sweetpotato plants

Novel and severe symptoms of chlorosis, rugosity, leaf strapping and dark green islands, designated as sweetpotato severe mosaic disease (SPSMD), were caused by dual infection of Sweet potato mild mottle virus (SPMMV; Ipomovirus) and Sweet potato chlorotic stunt virus (SPCSV; Crinivirus) in three East African sweetpotato cultivars (Tanzania, Dimbuka and New Kawogo). The storage root yield …

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