Selected lines of Stylosanthes guianensis, S scabra, S. capitata and S. macrocephala were established at field sites at Planaltina and Campo Grande in Brazil and at Carimagua and Caquetá in Colombia. Weather conditions at each site were monitored continuously using an automatic weather station. D...
Chakraborty, S.
,
Fernandes, C.D.
,
Charchar, Maria José
,
Kelemu, Segenet
,
Cameron, DF
,
[Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity]
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Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity
Root rot severely constrains bean (Phaseolus vulgaris L.) production in parts of Western Kenya. Genetic and soil management options were evaluated for an integrated root rot management approach. Four hundred genotypes were progressively screened in the field for resistance to root not over six se...
Otsyina, R.M.
,
Ajanga, SI
,
Buruchara, Robin A.
,
Wortmann, Charles S.
,
[Development of an integrated bean root rot control strategy for Western Kenya]
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Development of an integrated bean root rot control strategy for Western Kenya
Cassava is one of the main carbohydrate sources in the tropics, and it has worldwide importance as basic food for millions of persons in America and Africa. This root crop is affected by cassava frog skin disease that in Colombia produces yield losses of almost 90%. A phytoplasma was associated w...
Álvarez, E.
,
Mejía, Juan Fernando
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Llano Rodríguez, Germán Alberto
,
Loke, John Bernard
,
[Detection and characterization of a phytoplasma associated with frog skin disease in cassava]
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Detection and characterization of a phytoplasma associated with frog skin disease in cassava
Studies on the seed transmission of Xanthomonas campestris PV phaseoli check for this species in other resources (XCP) that cause common and fuscous blight of beans were conducted in Uganda. Bean seed was the main source of primary inoculum. The population of XCP in farmers', commercial and rese...
Opio, A.F.
,
Allen, David J.
,
Teri, J.M.
,
[Studies on seed transmission of Xanthomonas campestris pv phaseoli in common beans in Uganda]
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Studies on seed transmission of Xanthomonas campestris pv phaseoli in common beans in Uganda
The application of biotechnology tools has made it possible to make significant advances in the detection of pathogens and in the study of the genetic variability of pathogen populations. As a result, adequate disease management strategies can be planned, and disease resistance markers for plants...
Álvarez, E.
,
Llano Rodríguez, Germán Alberto
,
Loke, John Bernard
,
Mejía De Los Rios, J.F.
,
[Applying biotechnology tools to improve control diseases of some tropical crops]
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Applying biotechnology tools to improve control diseases of some tropical crops
Panicle blight of rice, caused by Burkholderia glumae, has been a serious problem on rice in Japan since 1955. It has been reported from other rice-producing countries around the world and recently was reported on rice in the southern United States (2). A rice producer in Panama contacted us to v...
Nandakumar, R
,
Rush, MC
,
Correa Victoria, Fernando J.
,
[Association of Burkholderia glumae and B. gladioli with panicle blight symptoms on rice in Panama]
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Association of Burkholderia glumae and B. gladioli with panicle blight symptoms on rice in Panama
Breeding for resistance to biotic and abiotic stresses of global importance in common bean is reviewed with emphasis on development and application of marker-assisted selection (MAS). The implementation and adoption of MAS in breeding for disease resistance is advanced compared to the implementat...
Miklas, PN
,
Kelly, James D.
,
Beebe, Stephen E.
,
Blair, Matthew W.
,
[Common bean breeding for resistance against biotic and abiotic stresses : From classical to MAS breeding]
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Common bean breeding for resistance against biotic and abiotic stresses : From classical to MAS breeding
Emerging infectious diseases (EIDs) pose threats to conservation and public health. Here, we apply the definition of EIDs used in the medical and veterinary fields to botany and highlight a series of emerging plant diseases. We include EIDs of cultivated and wild plants, some of which are of sign...
A new disease of rice, known as ‘entorchamiento’ (crinkling), was first noticed in the Department of Meta, Colombia, in 1991. Symptoms include seedling death, foliar striping and severe plant malformation. Tissue extracts and purified preparations from diseased rice plants, contained virus-like p...
Morales, Francisco José
,
Ward, Elaine
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Castaño, Mauricio
,
Arroyave, José A.
,
Lozano Potes, Iván
,
Adams, Michael J.
,
[Emergence and partial characterization of rice stripe necrosis virus and its fungus vector in South America]
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Emergence and partial characterization of rice stripe necrosis virus and its fungus vector in South America
Gañan, Lederson
,
[Reaction of musa hybrids and cultivars to Colombian isolates of Mycosphaerella fijiensis]
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Reaction of musa hybrids and cultivars to Colombian isolates of Mycosphaerella fijiensis