Estimación de parámetros de calidad del fruto para segregantes interespecíficos de tomate de árbol (Solanum betaceum Cav.) en respuesta de resistencia a la Antracnosis (Colletotrichum acutatum J.H. Simmonds)
| Autor: | William Fernando Viera Arroyo, Andrea Verónica Sotomayor Correa, Maria Viviana Tamba Sandoval, Wilson Arturo Vásquez Castillo, Aníbal Martínez, Pablo Francisco Viteri Díaz, Lenin Ron |
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| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Acta Agronómica, Volume: 65, Issue: 3, Pages: 304-311, Published: JUL 2016 Acta Agronómica, Vol 65, Iss 3, Pp 304-311 (2016) |
| Popis: | The tree tomato (Solanum betaceum Cav.) in Ecuador, performs a severe reduction in yield and production of tree tomato and it is mostly attributed to the attack of anthracnose disease (Colletotrichum acutatum J.H. Simmonds). We assessed an improved tree tomato genotypes, derived from the crossing [(S. betaceum unilobum x) x S. betaceum] x S. betaceum, showing some degree of resistance to generate an alternative of sustainable management to this disease on a site with a high degree of infection in commercial ecotypes (Pelileo- Province of Tungurahua, Ecuador). Significantly differences among the analyzed groups were found in fruit and flesh color, as well as in quantitative variables such as yield. Two groups (G1 and G5) were noted for their low incidence of anthracnose, although they showed less progress in terms of productive variables. A selection index based on z-scores, allowed identifying superior individuals in terms of resistance to the disease and fruit quality. The genetic component of phenotypic variables showed that most of the observed variability is due to the genotypes and not to the environmental variability. |
| Databáze: | OpenAIRE |
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