| Revue: | Acta agronómica |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000431713 |
| ISSN: | 0120-2812 |
| Autores: | Ceballos Aguirre, Nelson1 Vallejo Cabrera, Franco Alirio2 Arango Arango, Natalia1 |
| Instituciones: | 1Universidad de Caldas, Manizales, Caldas. Colombia 2Universidad Nacional de Colombia, Facultad de Ciencias Agropecuarias, Palmira, Valle del Cauca. Colombia |
| Año: | 2012 |
| Periodo: | Jul-Sep |
| Volumen: | 61 |
| Número: | 3 |
| Paginación: | 230-238 |
| País: | Colombia |
| Idioma: | Español |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
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| Resumen en español | El índice de selección mostró como introducciones promisorias: IAC 445, LA2076, LA2710, LA2845, y LA1546, lo cual indica que existe diversidad fenotípica entre las introducciones evaluadas para las variables licopeno, b-caroteno y vitamina C |
| Resumen en inglés | The greatest genetic diversity of tomato (Solanum lycopersicum L.) is found in wild species, with variability in fruit quality characteristics such as flavor, aroma, color, and content of lycopene and b-carotene. The aim of this study was to determine the content of antioxidants (lycopene, b-carotene and vitamin C) in cherry tomato fruits of 30 wild introductions from the Germplasm Bank of the National University of Colombia in Palmira. The field study was conducted at Montelindo farm, property of the University of Caldas, with an average temperature of 22.8 °C, at 1010 masl, 2200 mm of annual pluvial precipitation and relative humidity of 76%. The experimental design used was a rectangular lattice, with 30 treatments (introductions) and a commercial control (Sweet million) in four replicates per treatment and five plants in each one as experimental unit. The evaluated variables were lycopene, b-carotene, vitamin C and acidity of the fruit, which were determined by spectrophotometry and titration by color change and pH. Additionally, fruit production of the introductions was assessed. Data were analyzed using ANOVA and Duncan mean test by using SAS software (SAS Institute, Cary NC). Finally, we applied a weighted selection index based on the variables lycopene, b-carotene and vitamin C, applying a selection pressure of 17%. Significant differences (P <0.05) for the evaluated variables were found. The highest content of lycopene was found in the introduction LA1455 with 0.32 µg / ml, that of b-carotene in the introduction LA2076 (0.095 µg / ml), and vitamin C in commercial control (Sweet Million) (85 mg / 100 g). The selection index showed as promising introductions: IAC 445, LA2076, LA2710, LA2845, and LA1546, indicating that phenotypic diversity exists among the introductions assessed for variables lycopene, b-carotene and vitamin C |
| Disciplinas: | Agrociencias, Química |
| Palabras clave: | Fitoquímica, Hortalizas, Jitomate, Solanum lycopersicum, Beta-caroteno, Licopeno, Recursos fitogenéticos, Vitamina C, Antioxidantes |
| Keyword: | Vegetables, Phytochemistry, Tomato, Solanum lycopersicum, Antioxidants, Betha-carotene, Lycopene, Phytogenetic resources, Vitamin C |
| Texte intégral: | Texto completo (Ver PDF) Texto completo (Ver HTML) |
