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- Author:
- Kazuo Kawano; Pablo Daza; Alvaro Amaya; Mario Rios; Wania M. F. Goncalves
- Source:
- Crop science 1978 v.18 no.3 pp. 377-380
- ISSN:
- 0011-183X
- Subject:
- Manihot esculenta; Oxisols; carbohydrates; cassava; climate; drought; farms; genetic improvement; germplasm; harvest index; hybrids; irrigation; rain; savannas; soil fertility; Colombia; Latin America
- Abstract:
- ... A yield evaluation in single-row plots were made in Colombia of approximately 1,900 accessions of cassava (Manihot esculenta Crantz), collected throughout Latin America and 4,700 hybrid lines from crosses within the same germplasm. Superior genotypes were selected on the basis of harvest index (proportion of root weight to total plant weight) and root yield in single-row plots and then evaluated i ...
- DOI:
- 10.2135/cropsci1978.0011183X001800030006x
- https://doi.org/10.2135/cropsci1978.0011183X001800030006x
- Author:
- P. H. Graham; G. Ocampo; L. D. Ruiz; A. Duque
- Source:
- Agronomy journal 1980 v.72 no.4 pp. 625-627
- ISSN:
- 0002-1962
- Subject:
- Rhizobium phaseoli; acid soils; agronomy; beans; captan; nodulation; pH; plate count; root rot; seed treatment; thiram; toxicity; Colombia; Latin America
- Abstract:
- ... In the multiple cropping systems used for bean (Phmeolus vulgaris L.) production in Latin America, seed treatment Is often needed for control of soil pathogens and pests, but can be incompatible with Rhizobium inoculation. This study looks at the interaction between Rhizobium and seed protectant. One laboratory and three field studies are reported. The survival of R. phaseoli on bean seeds treated ...
- DOI:
- 10.2134/agronj1980.00021962007200040013x
- https://doi.org/10.2134/agronj1980.00021962007200040013x
- Author:
- Willem Janssen; Norha Ruiz de Londoño
- Source:
- Agricultural economics 1994 v.10 no.1 pp. 13-25
- ISSN:
- 0169-5150
- Subject:
- agricultural development; agricultural policy; beans; corn; cropping systems; input costs; labor; modernization; peasantry; prices; production functions; profitability; small farms; Colombia; Latin America
- Abstract:
- ... The survival of the small‐farm sector in the process of agricultural modernization in Latin America has been a concern for many authors and institutions. It is generally believed that the small‐farm sector is bypassed in the process of agricultural development. The authors analyze modernization of bean/maize cropping systems in Southern Colombia. Prices, production practices and profitability are ...
- DOI:
- 10.1111/j.1574-0862.1994.tb00285.x
- https://doi.org/10.1111/j.1574-0862.1994.tb00285.x
- Author:
- Albert J. Fischer; Hector V. Ramírez; Kevin D. Gibson; Beatriz Da Silveira Pinheiro
- Source:
- Agronomy journal 2001 v.93 no.5 pp. 967-973
- ISSN:
- 0002-1962
- Subject:
- Brachiaria; Haplustox; Oryza sativa; Urochloa brizantha; Urochloa decumbens; aboveground biomass; cultivars; early development; grain yield; grazing; harvesting; herbicides; highlands; intercropping; leaf area index; pastures; perennial grasses; photons; profitability; rice; savannas; tillers; weeds; Colombia; Latin America
- Abstract:
- ... When savannas in Latin America are brought into cultivation, rice (Oryza sativa L.) can be sown with the perennial grasses palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich) Stapf] and signalgrass (B. decumbens Stapf) to harvest a grain crop while establishing a pasture to suppress weeds and provide grazing in subsequent years. However, these Brachiaria spp. can reduce upland rice yields. Ri ...
- DOI:
- 10.2134/agronj2001.935967x
- https://doi.org/10.2134/agronj2001.935967x
- Author:
- Adolfo Chávez; Miriam Muñoz
- Source:
- Food and nutrition bulletin v.23 no.4 pp. 349-350
- ISSN:
- 0379-5721
- Subject:
- food availability; food security; globalization; islands; malnutrition; nutritional status; Andes region; Brazil; Caribbean; Central America; Colombia; Latin America; Mexico
- Abstract:
- ... Although the nutrition situation in most Latin American countries is improving and malnutrition is easing, worrisome factors are emerging. Huge rural-to-urban migrations have been accompanied by a worsening nutrition situation in rural populations, especially in Mexico, Colombia, and Brazil, a phenomenon not readily apparent from average food availability and malnutrition data. Average figures can ...
- DOI:
- 10.1177/156482650202300404
- https://doi.org/10.1177/156482650202300404
- Author:
- Franqueville, H. De
- Source:
- Experimental agriculture 2003 v.39 no.3 pp. 225-240
- ISSN:
- 0014-4797
- Subject:
- Elaeis guineensis; Elaeis oleifera; genetics; hybrids; indigenous species; infectious diseases; insect vectors; oils; Brazil; Colombia; Ecuador; Latin America; Panama; Suriname
- Abstract:
- ... In South and Central America, tens of thousands of hectares of oil palms (Elaeis guineensis Jacq.) are affected by bud-rot types of disease. Having destroyed entire estates in Panama, Colombia, Suriname, Brazil and Ecuador, they are holding back the development of oil palm cultivation in Latin America. The cause is unknown. Indeed, 30 years after these diseases first wreaked havoc on a large scale ...
- DOI:
- 10.1017/S0014479703001315
- https://doi.org/10.1017/S0014479703001315
- Author:
- Kazuo Kawano
- Source:
- Crop science 2003 v.43 no.4 pp. 1325-1335
- ISSN:
- 0011-183X
- Subject:
- Manihot esculenta; biomass; breeding programs; cassava; dry matter content; environmental factors; genetic variation; germplasm; harvest index; plant breeding; social factors; Africa; Colombia; Latin America; Thailand
- Abstract:
- ... The Centro Internacional de Agricultura Tropical (CIAT, headquartered in Colombia) established a cassava (Manihot esculenta Crantz) breeding program in the beginning of the 1970s with the aim of extending the Green Revolution success to less privileged sectors of the tropical populations. The initial decade was mainly dedicated to the collection of germplasm and generation of basic breeding materi ...
- DOI:
- 10.2135/cropsci2003.1325
- https://doi.org/10.2135/cropsci2003.1325
- Author:
- Engelbrecht, C.J.B.; Harrington, T.C.; Alfenas, A.C.; Suarez, C.
- Source:
- Plant pathology 2007 v.56 no.6 pp. 923-933
- ISSN:
- 0032-0862
- Subject:
- Ceratocystis fimbriata; DNA fingerprinting; Theobroma cacao; genetic markers; genetic variation; hosts; mitochondrial DNA; nuclear genome; pathogens; vascular wilt; Brazil; Colombia; Costa Rica; Ecuador; Latin America
- Abstract:
- ... Ceratocystis cacaofunesta (= Ceratocystis fimbriata) causes a lethal wilt disease of cacao (Theobroma cacao) in Latin America. Polymorphic microsatellite markers, (CAT)₅ nuclear DNA fingerprints and Hae III mitochondrial DNA fingerprints were used to compare genetic diversity among isolates of C. cacaofunesta collected from populations in western Ecuador, Costa Rica, Colombia, and Rondônia and Bah ...
- DOI:
- 10.1111/j.1365-3059.2007.01735.x
- https://doi.org/10.1111/j.1365-3059.2007.01735.x
- Author:
- Calvert, L.A.; Cuervo, M.; Lozano, I.; Villareal, N.; Arroyave, J.
- Source:
- Phytopathologische Zeitschrift 2008 v.156 no.11-12 pp. 647-653
- ISSN:
- 0931-1785
- Subject:
- Rice ragged stunt virus; cassava; clones; complementary DNA; double-stranded RNA; electron microscopy; genes; phylogeny; proteins; races; roots; virus-like particles; viruses; Colombia; Latin America
- Abstract:
- ... Cassava Frogskin Disease (CFSD) can cause severe damage to cassava roots and is one of the most important diseases of cassava in Latin America. The principal objective of this study was to identify the causal agent of CFSD. Electron microscopy, viral purifications, double-stranded RNA (dsRNA) analysis, cloning, sequencing, rtPCR and hybridizations were carried out to characterize and associate a n ...
- DOI:
- 10.1111/j.1439-0434.2008.01412.x
- https://doi.org/10.1111/j.1439-0434.2008.01412.x
- Author:
- Alzate, Fernando; Quijano-Abril, Mario Alberto; Morrone, Juan J.
- Source:
- Journal of biogeography 2008 v.35 no.7 pp. 1250-1257
- ISSN:
- 0305-0270
- Subject:
- Alstroemeriaceae; biogeography; hybrids; tectonics; tropics; Andes region; Arctic region; Argentina; Caribbean; Central America; Colombia; Ecuador; Latin America; Mexico; Peru
- Abstract:
- ... A panbiogeographical analysis of the genus Bomarea was undertaken in order to determine generalized tracks and biogeographical nodes, and to evaluate the current distribution of the genus based on the available tectonic information and the biogeographical regionalization of Latin America. The Neotropical region from northern Mexico to northern Argentina, and the Nearctic and Andean regions. A tota ...
- DOI:
- 10.1111/j.1365-2699.2008.01896.x
- https://doi.org/10.1111/j.1365-2699.2008.01896.x
- Author:
- Juan Pablo Castro
- Source:
- International journal of water 2008 v.4 no.3-4 pp. 235-257
- ISSN:
- 1465-6620
- Subject:
- community service; drinking water; governance; models; private sector; public sector; sanitation; tariffs; water supply; Argentina; Bolivia; Chile; Colombia; Latin America
- Abstract:
- ... This paper analyses the appropriateness of public versus private models of providing and managing water and sanitation services. Better management practices, along with well-suited institutional arrangements, are needed to meet the Millennium Development Goals (MDGs) on water supply and sanitation. There has been Private Sector Involvement (PSI) in the drinking water sector in the four cases studi ...
- DOI:
- 10.1504/IJW.2008.019496
- https://doi.org/10.1504/IJW.2008.019496
- Author:
- Ekaterina Maslova; Mercedes Mora-Plazas; Yibby Forero; Sandra López-Arana; Ana Baylin; Eduardo Villamor
- Source:
- Food and nutrition bulletin v.30 no.2 pp. 103-111
- ISSN:
- 0379-5721
- Subject:
- C-reactive protein; assets; boys; ferritin; girls; iron; multivariate analysis; nutrient deficiencies; nutrition surveys; preschool children; school children; sociodemographic characteristics; socioeconomic status; vitamin A; Colombia; Latin America
- Abstract:
- ... In Latin America, the burden of vitamin A and iron deficiencies has been documented primarily in preschool-age children. There are few recent reports on the vitamin A and iron status of school-age children. We aimed to determine the prevalence and predictors of vitamin A and iron deficiencies in Colombian schoolchildren. We examined plasma retinol and ferritin concentrations in relation to socioec ...
- DOI:
- 10.1177/156482650903000201
- https://doi.org/10.1177/156482650903000201
- Author:
- Louise H. Dekker; Mercedes Mora-Plazas; Constanza Marín; Ana Baylin; Eduardo Villamor
- Source:
- Food and nutrition bulletin v.31 no.2 pp. 242-250
- ISSN:
- 0379-5721
- Subject:
- birth weight; body mass index; cough; diarrhea; educational status; elementary schools; fever; gastrointestinal system; growth retardation; households; maternal nutrition; morbidity; nutrition assessment; nutritional status; prospective studies; respiratory tract diseases; risk factors; school children; sociodemographic characteristics; Colombia; Latin America
- Abstract:
- ... There are few recent reports on the prevalence and risk factors of stunting and thinness among schoolchildren in Latin America. To determine the prevalence and sociodemographic correlates of stunting and thinness among school-age children in Bogotá, Colombia, and to examine whether these nutritional indices are associated with the risk of respiratory and diarrheal morbidity symptoms, visits to the ...
- DOI:
- 10.1177/156482651003100207
- https://doi.org/10.1177/156482651003100207
- Author:
- Katja Poveda; María Isabel Gómez Jiménez; André Kessler
- Source:
- Ecological applications 2010 v.20 no.7 pp. 1787-1793
- ISSN:
- 1051-0761
- Subject:
- Solanum tuberosum; Tecia solanivora; agricultural land; crop yield; environmental health; food production; food shortages; foregut; greenhouse experimentation; habitats; herbivores; humans; insect larvae; pests; plant response; potatoes; risk; tubers; Andes region; Colombia; Latin America
- Abstract:
- ... There is increasing global concern over the risk of food shortage and instability, and a concomitant demand for an increase in food production. However, the continuing expansion of agricultural areas threatens natural habitats as well as human and ecosystem health. One option for increasing food production is to maximize yields from existing farmland. Here we demonstrate that larval feeding by the ...
- DOI:
- 10.1890/09-1726.1
- https://doi.org/10.1890/09-1726.1
15. Current development and application of plant cryopreservation in Latin America and the Caribbean
- Author:
- Gonzalez-Arnao, M.T.; Engelmann, F.
- Source:
- Acta horticulturae 2011 v. no.908 pp. 447-452
- ISSN:
- 0567-7572
- Subject:
- Food and Agriculture Organization; biodiversity; cryopreservation; scientists; seeds; Argentina; Bolivia; Caribbean; Colombia; Costa Rica; Cuba; Ecuador; Latin America; Mexico; Peru
- Abstract:
- ... The large majority of species for which cryopreservation protocols are necessary are grown in tropical countries. It is therefore necessary to develop cryopreservation research activities in these countries, and to promote the dissemination of relevant scientific and technical information as a prerequisite to the initiation of such research activities. Central America, South America and the Caribb ...
- Author:
- Enrique Murgueitio; Zoraida Calle; Fernando Uribe; Alicia Calle; Baldomero Solorio
- Source:
- Forest ecology and management 2011 v.261 no.10 pp. 1654-1663
- ISSN:
- 0378-1127
- Subject:
- biodiversity; biological control; cattle; cattle production; climate change; credit; ecosystem services; fences; forage; indigenous species; landscape management; landscapes; meat production; milk production; pastures; plant density; production costs; ranching; reproduction; risk reduction; rotational grazing; shrubs; silvopastoral systems; society; trees; water supply; Colombia; Latin America; Mexico
- Abstract:
- ... Extensive cattle production currently occupies more than 27% of the rural landscapes in Latin America, and continues to expand. This activity, deeply rooted in the culture and rural economy of the region, requires an urgent transformation if it is to become both more efficient and environmentally friendly. Silvopastoral systems that incorporate native trees and shrubs are instrumental for the prod ...
- DOI:
- 10.1016/j.foreco.2010.09.027
- https://doi.org/10.1016/j.foreco.2010.09.027
- Author:
- Rainer Janssen; Dominik Damian Rutz
- Source:
- Energy policy 2011 v.39 no.10 pp. 5717-5725
- ISSN:
- 0301-4215
- Subject:
- European Union; biodiesel; certification; energy crops; ethanol production; exports; food crops; markets; risk; sugarcane; Argentina; Colombia; Costa Rica; Guatemala; Latin America; United States; Venezuela
- Abstract:
- ... Several Latin American countries are setting up biofuel programmes to establish alternative markets for agricultural commodities. This is mainly triggered by the current success of Brazilian bioethanol production for the domestic market and for export. Furthermore, the global biofuel market is expected to increase due to ambitious biofuel programmes in the EU and in the USA. Colombia, Venezuela, C ...
- DOI:
- 10.1016/j.enpol.2011.01.047
- https://doi.org/10.1016/j.enpol.2011.01.047
- Author:
- Irene Cerezo; Yesica Jiménez; Johana Hernandez; Thierry Zozio; Martha I. Murcia; Nalin Rastogi
- Source:
- Infection, genetics, and evolution 2012 v.12 no.4 pp. 657-663
- ISSN:
- 1567-1348
- Subject:
- Mycobacterium tuberculosis; immigration; loci; patients; population structure; public health; tuberculosis; Caribbean; China; Colombia; Europe; Latin America
- Abstract:
- ... With an incidence of 25.6/100,000 in 2008, tuberculosis (TB) remains an important public health problem in Colombia. In this study, a total of 152 Mycobacterium tuberculosis complex strains isolated in Bogotá, Colombia between years 1995 and 2007 were genotyped by spoligotyping and 12-loci MIRU-VNTRs. The various spoligotyping-based genotypic lineages in our sample were: Latin American & Mediterra ...
- DOI:
- 10.1016/j.meegid.2011.07.006
- PubMed:
- 21784173
- https://doi.org/10.1016/j.meegid.2011.07.006
- Author:
- Tessler Michael
- Source:
- Bryologist 2012 v.115 no.4 pp. 493-517
- ISSN:
- 0007-2745
- Subject:
- Bryophyta; Neotropics; genes; habitats; monophyly; mosses and liverworts; paraphyly; taxonomic keys; Australasian region; Caribbean; Colombia; Latin America; New Caledonia; New Zealand; Panama; Paraguay; Tasmania
- Abstract:
- ... A monograph and the first phylogenetic study of the moss genus Hymenodon (Orthodontiaceae: Bryophyta) is presented based on morphological and molecular data. Evolutionary patterns are evaluated using phylogenetic analyses that incorporate newly acquired and assembled morphological (30 characters) and molecular sequence (rps4 gene and partial rps4-trnS intergenic non-coding spacer) data. Parsimony ...
- DOI:
- 10.1639/0007-2745-115.4.493
- https://doi.org/10.1639/0007-2745-115.4.493
- Author:
- Rodríguez-Delfín, A.
- Source:
- Acta horticulturae 2012 v. no.947 pp. 23-32
- ISSN:
- 0567-7572
- Subject:
- peat; agricultural soils; rice; poverty; sawdust; potatoes; sand; mosses and liverworts; tomatoes; growers; strawberries; certification; hydroponics; viruses; horticulture; urban agriculture; profits and margins; cities; seed tubers; gravel; pumice; family support; lettuce; statistics; income; rivers; quartz; microirrigation; nutrition; wool; pepper; developed countries; Costa Rica; Mexico; Chile; Latin America; Colombia; Bolivia; Ecuador; Andes region; Brazil; Peru
- Abstract:
- ... Hydroponics has been used during years for research in the field of plant mineral nutrition and related topics. Today the soilless culture method is the most intensive horticulture production and is being applied with success in developed countries for commercial purposes. The growing and future of hydroponics in Latin America will much depend of the developing and adaptation of less sophisticated ...
- DOI:
- 10.17660/ActaHortic.2012.947.1
- https://doi.org/10.17660/ActaHortic.2012.947.1