Inducción a floración en yuca (Manihot esculenta Crantz)
La floración en yuca (Manihot esculenta Crantz) está estrechamente relacionada con la ramificación. Aunque los agricultores prefieren los genotipos de tipo erecto, su utilidad como progenitores está limitada por su baja o nula producción de semillas. El objetivo de este estudio fue evaluar el efecto...
- Autores:
-
Pineda Vargas, Lizzeth Marcela
- Tipo de recurso:
- Informe
- Fecha de publicación:
- 2020
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/79001
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/79001
- Palabra clave:
- 630 - Agricultura y tecnologías relacionadas
Photoperiod extension
benzyladenine
red light
pruning
branching
cassava breeding
Extensión del fotoperiodo
luz roja
benciladenina
podas
ramificación
mejoramiento de yuca
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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| dc.title.spa.fl_str_mv |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| dc.title.alternative.spa.fl_str_mv |
Induction of flowering in Cassava (Manihot esculenta Crantz) |
| title |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| spellingShingle |
Inducción a floración en yuca (Manihot esculenta Crantz) 630 - Agricultura y tecnologías relacionadas Photoperiod extension benzyladenine red light pruning branching cassava breeding Extensión del fotoperiodo luz roja benciladenina podas ramificación mejoramiento de yuca |
| title_short |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| title_full |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| title_fullStr |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| title_full_unstemmed |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| title_sort |
Inducción a floración en yuca (Manihot esculenta Crantz) |
| dc.creator.fl_str_mv |
Pineda Vargas, Lizzeth Marcela |
| dc.contributor.advisor.spa.fl_str_mv |
Ceballos, Hernán Mejía de Tafur, Maria Sara |
| dc.contributor.author.spa.fl_str_mv |
Pineda Vargas, Lizzeth Marcela |
| dc.subject.ddc.spa.fl_str_mv |
630 - Agricultura y tecnologías relacionadas |
| topic |
630 - Agricultura y tecnologías relacionadas Photoperiod extension benzyladenine red light pruning branching cassava breeding Extensión del fotoperiodo luz roja benciladenina podas ramificación mejoramiento de yuca |
| dc.subject.proposal.eng.fl_str_mv |
Photoperiod extension benzyladenine red light pruning branching cassava breeding |
| dc.subject.proposal.spa.fl_str_mv |
Extensión del fotoperiodo luz roja benciladenina podas ramificación mejoramiento de yuca |
| description |
La floración en yuca (Manihot esculenta Crantz) está estrechamente relacionada con la ramificación. Aunque los agricultores prefieren los genotipos de tipo erecto, su utilidad como progenitores está limitada por su baja o nula producción de semillas. El objetivo de este estudio fue evaluar el efecto de la extensión del fotoperíodo de luz roja, la poda y la aplicación de benciladenina para inducir la floración en los genotipos de yuca GM 971-2 (ramificado, floración intermedia), CM 4919-2 (erecto, floración tardía), y SM 3348-29 y GM 3893-65 (erecto, tardío o sin floración). Los genotipos fueron cultivados en un experimento factorial en condiciones de fotoperiodo normal (FN) y de fotoperíodo extendido (FE). Además, las ramas jóvenes del primer y segundo eventos de ramificación (ER1 y ER2) se podaron y rociaron con benciladenina (BA). Las plantas sin poda y sin aplicación BA sirvieron como controles. En FE, el tiempo para generar un ER disminuyó para GM 971-2. Además, CM 4919-1, SM 3348-29 y GM 3893-65 produjeron de uno a varios ER en FE pero no en FN. La poda de las ramas jóvenes en ER1 y ER2 fortaleció la dominancia apical de la inflorescencia, aunque la baja frecuencia de flores femeninas por inflorescencia limitó la producción de semillas. El tratamiento con benciladenina aumentó el número de flores femeninas, por lo tanto, aumentó la producción de frutas y semillas. En comparación con los controles, el uso combinado de FE, poda y BA aumentó significativamente la producción promedio de semillas de 10 a 27, de 0 a 22 y de 0 a 60 semillas para GM 971-2, CM 4919-1 y SM 3348-29, respectivamente. |
| publishDate |
2020 |
| dc.date.issued.spa.fl_str_mv |
2020-07-07 |
| dc.date.accessioned.spa.fl_str_mv |
2021-02-01T01:49:39Z |
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2021-02-01T01:49:39Z |
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Documento de trabajo |
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http://purl.org/coar/resource_type/c_8042 |
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info:eu-repo/semantics/workingPaper |
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info:eu-repo/semantics/acceptedVersion |
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http://purl.org/coar/resource_type/c_93fc |
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Text |
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http://purl.org/redcol/resource_type/WP |
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http://purl.org/coar/resource_type/c_93fc |
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(Pineda Vargas, 2020) |
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https://repositorio.unal.edu.co/handle/unal/79001 |
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spa |
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de ColombiaAcceso abiertohttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Ceballos, Hernán95bb6b01-7295-4e5d-bc98-6fc201d6cfff-1Mejía de Tafur, Maria Sara782f46ec-cc76-4072-bcc6-8a84ca12ac67-1Pineda Vargas, Lizzeth Marcela963e88aa-03fe-4293-a6c7-0067f4c423042021-02-01T01:49:39Z2021-02-01T01:49:39Z2020-07-07(Pineda Vargas, 2020)https://repositorio.unal.edu.co/handle/unal/79001La floración en yuca (Manihot esculenta Crantz) está estrechamente relacionada con la ramificación. Aunque los agricultores prefieren los genotipos de tipo erecto, su utilidad como progenitores está limitada por su baja o nula producción de semillas. El objetivo de este estudio fue evaluar el efecto de la extensión del fotoperíodo de luz roja, la poda y la aplicación de benciladenina para inducir la floración en los genotipos de yuca GM 971-2 (ramificado, floración intermedia), CM 4919-2 (erecto, floración tardía), y SM 3348-29 y GM 3893-65 (erecto, tardío o sin floración). Los genotipos fueron cultivados en un experimento factorial en condiciones de fotoperiodo normal (FN) y de fotoperíodo extendido (FE). Además, las ramas jóvenes del primer y segundo eventos de ramificación (ER1 y ER2) se podaron y rociaron con benciladenina (BA). Las plantas sin poda y sin aplicación BA sirvieron como controles. En FE, el tiempo para generar un ER disminuyó para GM 971-2. Además, CM 4919-1, SM 3348-29 y GM 3893-65 produjeron de uno a varios ER en FE pero no en FN. La poda de las ramas jóvenes en ER1 y ER2 fortaleció la dominancia apical de la inflorescencia, aunque la baja frecuencia de flores femeninas por inflorescencia limitó la producción de semillas. El tratamiento con benciladenina aumentó el número de flores femeninas, por lo tanto, aumentó la producción de frutas y semillas. En comparación con los controles, el uso combinado de FE, poda y BA aumentó significativamente la producción promedio de semillas de 10 a 27, de 0 a 22 y de 0 a 60 semillas para GM 971-2, CM 4919-1 y SM 3348-29, respectivamente.Flowering in cassava (Manihot esculenta Crantz) is closely linked to branching. Although farmers prefer erect-type genotypes, their usefulness as parents in breeding is limited by their low or no seed production. The objective of this study was to evaluate the effect of red light photoperiod extension, pruning and the application of benzyladenine to induce flowering in cassava genotypes GM 971-2 (branched, intermediate flowering), CM 4919-2 (erect, late flowering), and SM 3348-29 and GM 3893-65 (erect, late or non-flowering). The genotypes were cultivated in a factorial experiment under normal (FN) or extended photoperiod (FE) conditions. In addition, young branches from the first and second branching events (ER1 and ER2) were pruned and sprayed with benzyladenine (BA). Plants without pruning or BA application served as controls. In FE, the time to generate an ER decreased for genotype GM 971-2. Moreover, genotypes CM 4919-1, SM 3348-29 and GM 3893-65 produced from one to several ERs in FE but not in FN. The pruning of young branches in ER1 and ER2 strengthened the apical dominance of the inflorescence, although the low frequency of female flowers per inflorescence limited the production of seeds. Benzyladenin treatment increased the number of female flowers, therefore, increasing the production of fruits and seeds. In comparison to controls, the combined use of FE, pruning and BA significantly increased the averaged seed production from 10 to 27, 0 to 22 and 0 to 60 seeds for GM 971-2, CM 4919-1 and SM 3348-29, respectively.Centro Internacional de Agricultura Tropical (CIAT)Next Gen: Flowering Induction on cassavaMaestría84application/pdfspa630 - Agricultura y tecnologías relacionadasPhotoperiod extensionbenzyladeninered lightpruningbranchingcassava breedingExtensión del fotoperiodoluz rojabenciladeninapodasramificaciónmejoramiento de yucaInducción a floración en yuca (Manihot esculenta Crantz)Induction of flowering in Cassava (Manihot esculenta Crantz)Documento de trabajoinfo:eu-repo/semantics/workingPaperinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_93fchttp://purl.org/coar/resource_type/c_8042Texthttp://purl.org/redcol/resource_type/WPPalmira - Ciencias Agropecuarias - Maestría en Ciencias AgrariasMaestría Ciencias AgrariasUniversidad Nacional de Colombia - Sede PalmiraAbdelgadir, H.A., Jager, A.K., Johnson, S.D., y J. 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