Evaluación de líneas de fríjol (Phaseolus vulgaris L.) de retrocruce avanzado entre una accesión silvestre y radical cerinza
In order to select potential parents with adaptation to the area, adequate yield and grain type, 100 genotypes (95 RC2 lines and 5 witnesses) of bush bean (Phaseolus vulgaris L.) were evaluated in a lattice design 10 x 10 at the Experimental Farm Tunguavita, Paipa-Boyaca. The RC2 lines were obtai-ne...
- Autores:
-
Delgado, Hernando
Pinzón, Elberth Hernando
Blair, Mathew
Izquierdo, Paulo César
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2013
- Institución:
- Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
- Repositorio:
- Repositorio Institucional UDCA
- Idioma:
- spa
- OAI Identifier:
- oai:repository.udca.edu.co:11158/1704
- Acceso en línea:
- https://revistas.udca.edu.co/index.php/ruadc/article/view/861
- Palabra clave:
- Retrocruce avanzado
Pre-mejoramiento
Fríjol
Rendimiento
Componentes
Genotipos
Plantas
- Rights
- openAccess
- License
- Derechos Reservados - Universidad de Ciencias Aplicadas y Ambientales, 2013
| Summary: | In order to select potential parents with adaptation to the area, adequate yield and grain type, 100 genotypes (95 RC2 lines and 5 witnesses) of bush bean (Phaseolus vulgaris L.) were evaluated in a lattice design 10 x 10 at the Experimental Farm Tunguavita, Paipa-Boyaca. The RC2 lines were obtai-ned from an advanced backcross between Radical Cerinza population (recurrent parent) and a wild accession G 10022 (donor parent). Vigor, days to flowering and maturity, grain yield and its components: number of pods per plant, number of grains per pod and weight of 100 grains, were evaluated. The final grain yield showed its highest correlation coeffi-cients and significance for the components number of pods per plant and weight of 100 grains. Several lines, expressing transgressive segregation of Radical Cerinza, the recurrent parent, in the variables number of pods per plant, weight of 100 grains and final yield, with seven significantly superior lines in yield and appropriate grain type were identified. The line of maximum yield with 3.894kg ha-1 exceeded the re-current parent in 1.811kg ha-1. These results indicate that the advanced backcross method is proving to be efficient for high yield genes, introgressed from wild accessions to impro-ved cultivars. The lines with best yields should furthermore be advanced with this methodology, in the search of donor parents of high yield genes to obtain new bush bean impro-ved varieties, for cold climate of the Boyacá department. |
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