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Herrera Durán, O.Beltrán Giraldo, Jorge Alonso[Generalidades sobre trabajos realizados en la zona alta de Nariño 1983B-1984A]Generalidades sobre trabajos realizados en la zona alta de Nariño 1983B-1984A

Ashby, J.A.Gracia, T.Guerrero, MPQuirós Torres, Carlos ArturoRoa Velasco, J.I.Beltrán Giraldo, Jorge Alonso[Organización de agricultores investigadores para su participación en la investigación agrícola y en el desarrollo de tecnologías]Organización de agricultores investigadores para su participación en la investigación agrícola y en el desarrollo de tecnologías

Ashby, J.A.Gracia, T.Guerrero, MPQuirós Torres, Carlos ArturoRoa Velasco, J.I.Beltrán Giraldo, Jorge Alonso[Organizing experimenting farmers to participation in agricultural research and technology development]Organizing experimenting farmers to participation in agricultural research and technology development

Non-adoption of soil conservation practices by farmers in low-income countries is a major obstacle to reversing soil degradation. Farmer participation in designing these practices is required to improve adoption. This study tested participatory methods which dramatically increased adoption among ...


Ashby, J.A.Beltrán Giraldo, Jorge AlonsoGuerrero, MPRamos P, HF[Improving the acceptability to farmers of soil conservation practices]Improving the acceptability to farmers of soil conservation practices

Beltrán Giraldo, Jorge AlonsoOrozco, PPZapata, VSanz Scovino, José IgnacioRoa García, MCSchmidt, A[Scaling out and scaling up: the importance of watershed management organizations]Scaling out and scaling up: the importance of watershed management organizations
Beltrán Giraldo, Jorge AlonsoTrujillo, FE[Barreras vivas como práctica de conservación de suelos en el sistema intercalado café/frijol]Barreras vivas como práctica de conservación de suelos en el sistema intercalado café/frijol
Beltrán Giraldo, Jorge AlonsoJaimes, HEcheverry, MLadino Franco, YJLópez, D.Duque E., Myriam CristinaChavarriaga Aguirre, PaulTohme, Joseph M.[Quantification of copy number and mRNA levels of transgenes in cassava using quantitative real-time PCR]Quantification of copy number and mRNA levels of transgenes in cassava using quantitative real-time PCR
Roa, CBrown, S.Roa García, MCBeltrán Giraldo, Jorge Alonso[Protocol for the characterization of carbon and water cycles in high elevation ecosystems]Protocol for the characterization of carbon and water cycles in high elevation ecosystems
Chavarriaga Aguirre, PaulLadino Franco, YJBeltrán Giraldo, Jorge AlonsoVacca, OLópez, D.García, M.Chávez, Alba L.Arango Mejía, J.Beyer, PeterAl-Babili, S.Tohme, Joseph M.[Transgenic cassava with bacterial genes of the carotenoid biosynthetic pathway accumulate higher levels of phytoene, lutein and a and b-carotene]Transgenic cassava with bacterial genes of the carotenoid biosynthetic pathway accumulate higher levels of phytoene, lutein and a and b-carotene

Cassava (Manihot esculenta) is an important staple crop, especially in the arid tropics. Because roots of commercial cassava cultivars contain a limited amount of provitamin A carotenoids, both conventional breeding and genetic modification are being applied to increase their production and accum...


Welsch, RArango, JacoboBar, CSalazar, BAl-Babili, S.Beltrán Giraldo, Jorge AlonsoChavarriaga Aguirre, PaulCeballos, H.Tohme, Joseph M.Beyer, Peter[Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]]Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]

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