Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia
Several physical and biological factors that limit cassava productivity are described: temp. and photoperiod, soil water availability, RH, soil characteristics (fertility and pH), and pests and diseases. Six edapho--climatic zones (ECZ) for cassava production are defined on the basis of temp.: lowla...
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| Formato: | Informe técnico |
| Lenguaje: | Español |
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International Center for Tropical Agriculture
1982
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/71804 |
| _version_ | 1855516289256128512 |
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| author | Hershey, Clair H. |
| author_browse | Hershey, Clair H. |
| author_facet | Hershey, Clair H. |
| author_sort | Hershey, Clair H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Several physical and biological factors that limit cassava productivity are described: temp. and photoperiod, soil water availability, RH, soil characteristics (fertility and pH), and pests and diseases. Six edapho--climatic zones (ECZ) for cassava production are defined on the basis of temp.: lowland tropics, ECZ 1 (low to moderate rainfall and long dry season; high annual temp.), ECZ 2 (moderate to high rainfall on acid, infertile soils), and ECZ 3 (no marked dry season, high rainfall, high constant rh); intermediate alt. tropics, ECZ 4; highland tropics, ECZ 5; and subtropics, ECZ 6. A unique combination of potential pest and disease problems can be identified for each ECZ. In Colombia, conditions for 5 of the 6 ECZ (ECZ 1-5) have been identified. CIAT`s improvement strategy consists of: (1) germplasm collection in different Colombian ECZs; (2) selection of parents and formation of gene-pools for each ECZ; (3) evaluation and selection of hybrids within and between the zones; and (4) recommendations to national programs on the testing of selected clones and/or specific progenies. Results obtained using this methodology prove the highpotential existing for improving cassava productivity under stress conditions through var. improvement methods and simple cultural practices. (CIAT) |
| format | Informe técnico |
| id | CGSpace71804 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 1982 |
| publishDateRange | 1982 |
| publishDateSort | 1982 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace718042025-11-05T17:13:14Z Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia Hershey, Clair H. manihot esculenta adaptation bacterial diseases climatic requirements cultivation diseases and pathogens germplasm hybridizing injurious insects injurious mites mycoses pests plant breeding selection soil requirements soybean flour viroses flours noxious animals adaptación requerimientos climaticos cultivo enfermedades y patogenos germoplasma hibridacion insectos perjudiciales acaros perjudiciales micosis plagas fitomejoramiento selección requerimientos del suelo harina Several physical and biological factors that limit cassava productivity are described: temp. and photoperiod, soil water availability, RH, soil characteristics (fertility and pH), and pests and diseases. Six edapho--climatic zones (ECZ) for cassava production are defined on the basis of temp.: lowland tropics, ECZ 1 (low to moderate rainfall and long dry season; high annual temp.), ECZ 2 (moderate to high rainfall on acid, infertile soils), and ECZ 3 (no marked dry season, high rainfall, high constant rh); intermediate alt. tropics, ECZ 4; highland tropics, ECZ 5; and subtropics, ECZ 6. A unique combination of potential pest and disease problems can be identified for each ECZ. In Colombia, conditions for 5 of the 6 ECZ (ECZ 1-5) have been identified. CIAT`s improvement strategy consists of: (1) germplasm collection in different Colombian ECZs; (2) selection of parents and formation of gene-pools for each ECZ; (3) evaluation and selection of hybrids within and between the zones; and (4) recommendations to national programs on the testing of selected clones and/or specific progenies. Results obtained using this methodology prove the highpotential existing for improving cassava productivity under stress conditions through var. improvement methods and simple cultural practices. (CIAT) 1982 2016-02-29T17:12:50Z 2016-02-29T17:12:50Z Report https://hdl.handle.net/10568/71804 es Open Access application/pdf International Center for Tropical Agriculture HERSHEY, C.H. 1982. Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 16 p. (Seminarios internos. Serie SE-15-82) |
| spellingShingle | manihot esculenta adaptation bacterial diseases climatic requirements cultivation diseases and pathogens germplasm hybridizing injurious insects injurious mites mycoses pests plant breeding selection soil requirements soybean flour viroses flours noxious animals adaptación requerimientos climaticos cultivo enfermedades y patogenos germoplasma hibridacion insectos perjudiciales acaros perjudiciales micosis plagas fitomejoramiento selección requerimientos del suelo harina Hershey, Clair H. Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title | Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title_full | Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title_fullStr | Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title_full_unstemmed | Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title_short | Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia |
| title_sort | mejoramiento de la yuca para adaptacion en condiciones de estres desarrollo de una metodologia |
| topic | manihot esculenta adaptation bacterial diseases climatic requirements cultivation diseases and pathogens germplasm hybridizing injurious insects injurious mites mycoses pests plant breeding selection soil requirements soybean flour viroses flours noxious animals adaptación requerimientos climaticos cultivo enfermedades y patogenos germoplasma hibridacion insectos perjudiciales acaros perjudiciales micosis plagas fitomejoramiento selección requerimientos del suelo harina |
| url | https://hdl.handle.net/10568/71804 |
| work_keys_str_mv | AT hersheyclairh mejoramientodelayucaparaadaptacionencondicionesdeestresdesarrollodeunametodologia |