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A wilt and eventual dieback disease ot the forage legume Stylosanthes guianens which occurs widely in Colombia and Brazil, is described. The causal agent of the wilt disease is identified as Lasiodiplodia theobromae, a virulent, unspeciaIized, facultative, wound pathogen with worldwide distributi...


Kelemu, SegenetBadel, JLFernandes, C.D.[A new dieback disease of the forage legume Stylosanthes guianensis in South America]A new dieback disease of the forage legume Stylosanthes guianensis in South America

African oil palm ringspot virus (AOPRV) had been previously described as a fovea-like virus associated with a lethal disease of African oil palm (Elaeis guineensis) in South America. The original report was based on partial sequence and a distant relationship between AOPRV and Apple stem pitting ...


Lozano Potes, IMorales, Francisco JoséMartínez, A.K.Pena, E[Molecular characterization and detection of African oil palm ringspot virus]Molecular characterization and detection of African oil palm ringspot virus

The complete nucleotide sequences of RNAs 1 and 2 of Rice stripe necrosis virus (RSNV) were determined and compared to the corresponding genomes of all sequenced, rod-shaped plant viruses. The genome organisation of RSNV RNA1 and RNA2 is nearly identical to that of Beet necrotic yellow vein virus...


Lozano Potes, IMorales, Francisco José[Molecular characterisation of rice stripe necrosis virus as a new species of the genus benyvirus]Molecular characterisation of rice stripe necrosis virus as a new species of the genus benyvirus

Africa RISINGInternational Institute of Tropical Agriculture[Utambuzi wa wadudu waharibifu na magonjwa ya nyanya]Utambuzi wa wadudu waharibifu na magonjwa ya nyanya

Njukeng, P.A.Chewachong, G.M.Sakwe, P.Chofong, G.Nkeabeng, L.W.Demo, P.Njualem, K.D.[Prevalence of six viruses in potato seed tubers produced in informal seed system in the North West Region of Cameroon.]Prevalence of six viruses in potato seed tubers produced in informal seed system in the North West Region of Cameroon.

Plant viruses cause major losses to several agricultural and horticultural crops around the world. Unlike other plant pathogens, there are no direct methods available yet to control viruses and, consequently, the current measures rely on indirect tactics to manage the viral diseases. Hence, metho...


Naidu, R.Hughes, J.[Methods for the detection of plant viruse diseases]Methods for the detection of plant viruse diseases

The genetic improvement of banana and plantain has focused on breeding for resistance to black sigatoka. This has been quite successful, but the distribution of improved hybrids has been impeded by the outbvreak of Banana streak virus (BSV). Integration of viral sequences in Musa genomes make it ...


Tenkouano, A.Hughes, J.Dahal, G.Pillay, M.[Prospects for breeding agronomically superior Musa with resistance or tolerance to BSV]Prospects for breeding agronomically superior Musa with resistance or tolerance to BSV

In sub-Saharan Africa (SSA), many crops grown by subsistence farmers are severely affected by virus diseases. These diseases are distinct from each other and have various means of spread and perennation. Many are widely distributed in the region. The causal agents of several virus diseases have b...


Hughes, J.Naidu , R.Shoyinka, S.[Future of plant virus disease research in subSaharan African agriculture]Future of plant virus disease research in subSaharan African agriculture

Ospina Patiño, BernardoCeballos, H.Álvarez, E.Bellotti, Anthony C.Calvert, Lee A.Arias, V.B.Cadavid López, Luis FernandoPineda López, BenjamínLlano Rodríguez, Germán AlbertoCuervo Ibáñez, Maritza[La yuca en el tercer milenio: sistemas modernos de producción, procesamiento, utilización y comercialización]La yuca en el tercer milenio: sistemas modernos de producción, procesamiento, utilización y comercialización

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