Adaptation, multiple disease resistance and acid soils tolerance of bean genotypes.
Guardat en:
| Autors: | , , , , |
|---|---|
| Format: | artículo original |
| Estat: | Versión publicada |
| Data de publicació: | 2003 |
| Descripció: | The objective of thisexperiment was to select bean genotypes with high yieldpotential, wide adaptation, multiple disease resistance andtolerance to acid soils. For that reason, during the Fall-Winter1999-2000 cycle, a uniform yield trial was conducted in fourenvironments in Veracruz and Chiapas, Mexico. Sixteengenotypes were evaluated, including the varieties NegroJamapa as a regional control. A randomized Complete Blockdesign with three replications was used. Grain yield wasevaluated by means of individual and combined analysis ofvariance and stability parameters. Reaction to diseases wasgraded according to a 1-9 scale; the Efficiency Index (IE) wasused to evaluate the tolerance to acid soils. There weresignificant differences in grain yield and tolerance to diseasesfor localities, genotypes and the locality .genotypeinteraction; whereas for the tolerance to acid soils there wasno significant differences between localities and theinteraction. The best genotypes with regard to yield,adaptation and tolerance to acid soils were Negro 8025,DOR-454, Icta Ju 95-112, Icta Ju 93-15 and DOR-448; thefirst and the last varieties had multiple resistance to diseases.The lines UCR-55, TLP-22 and DOR-500 also showed highyields and multiple disease resistance. |
| Pais: | Portal de Revistas UCR |
| Institution: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/11943 |
| Accés en línia: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11943 |