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, Segenet
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Badel, JL
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Fernandes, C.D.
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[A new dieback disease of the forage legume Stylosanthes guianensis in South America]
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A new dieback disease of the forage legume Stylosanthes guianensis in South America
This study developed a fast and reliable method of inoculating Brachiaria, a genus of tropical forage grasses, with Rhizoctonia solani, the causal agent of foliar blight disease. Using this method, 42 Brachiaria accessions were inoculated in both field and glasshouse, and their reactions to R. so...
Kelemu, Segenet
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Miles, John W.
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Bonilla, Ximena P.
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Badel, JL
,
[Sources of resistance in species of Brachiaria to foliar blight disease caused by Rhizoctonia solani]
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Sources of resistance in species of Brachiaria to foliar blight disease caused by Rhizoctonia solani
Zuleta, C
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Kelemu, Segenet
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Cardozo, O.
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[Identificación de fuentes de resistencia a Xanthomonas campestris en Brachiaria spp]
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Identificación de fuentes de resistencia a Xanthomonas campestris en Brachiaria spp
Kelemu, Segenet
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Lapointe, Stephen L.
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Morales, Francisco José
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[Diseases and pests of wild Arachis species]
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Diseases and pests of wild Arachis species
Kelemu, Segenet
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Lapointe, Stephen L.
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Morales, Francisco José
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[Enfermedades y plagas de especies de Arachis silvestre]
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Enfermedades y plagas de especies de Arachis silvestre
The genus Stylosanthes Sw. has provided ample germplasm for a wide variety of agroecological situations in the tropics. The most important attributes of successful Stylosanthes cultivars used as pasture or ley in the tropics are resistance to diseases, high seed yield and adaptation to poor soils...
Kelemu, Segenet
,
Miles, John W.
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Rao, Idupulapati M.
,
[Biotic and abiotic constraints to Stylosanthes production]
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Biotic and abiotic constraints to Stylosanthes production
Stylosanthes guianensis is a diverse tropical and subtropical forage legume of great potential. Foliar blight disease, caused by Rhizoctonia solani AG-1, can be a significant constraint to the legume’s production in some areas. The pathogen has a broad range of host plant species, and can survive...
Kelemu, Segenet
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Changshun, J
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Guixi, H
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Segura, G.
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[Genetic transformation of the tropical forage legume Stylosanthes guianensis with a rice-chitinase gene confers resistance to Rhizoctonia foliar blight disease]
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Genetic transformation of the tropical forage legume Stylosanthes guianensis with a rice-chitinase gene confers resistance to Rhizoctonia foliar blight disease
Anthracnose, caused by Colletotrichum gloeosporioides, is the most important and widespread disease of Stylosanthes, a diverse tropical and subtropical forage legume naturally distributed in Central and South America. Although South American isolates of C. gloeosporioides are known to be variable...
Kelemu, Segenet
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Badel, JL
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Moreno, CX
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[Virulence spectrum of South American isolates of Colletotrichum gloeosporioides on selected Stylosanthes guianensis genotypes]
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Virulence spectrum of South American isolates of Colletotrichum gloeosporioides on selected Stylosanthes guianensis genotypes