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Revista Facultad Nacional de Agronomía Medellín

Print version ISSN 0304-2847

Abstract

CEBALLOS AGUIRRE, Nelson  and  VALLEJO CABRERA, Franco Alirio. EVALUATING THE FRUIT PRODUCTION AND QUALITY OF CHERRY TOMATO (Solanum lycopersicum var. cerasiforme). Rev. Fac. Nac. Agron. Medellín [online]. 2012, vol.65, n.2, pp.6593-6604. ISSN 0304-2847.

Abstract. The greatest genetic diversity of tomato (Solanum lycopersicum L.) in terms of fruit quality characteristics such as flavor, aroma, color, and lycopene and b-carotene contents is found in wild species. This study evaluated the agronomic characteristics and fruit quality of 30 cherry tomato introductions of the germplasm bank of the Universidad Nacional de Colombia - Sede Palmira in trials conducted at the Montelindo experimental farm of the Universidad de Caldas (1010 m above sea level, average temperature 22.8 °C, average annual rainfall 2200 mm, 76% relative humidity). A 5 x 6 rectangular lattice experimental design was used with 30 treatments (introductions) and a commercial control (Sweet Million), 4 replicates/treatment, and 5 plants/replicate as experimental unit. The descriptors used were those suggested by the former International Plant Genetic Resources Institute, now Bioversity International. Data were statistically analyzed by ANOVA and Duncan's means test using the SAS program. In addition, principal component and cluster dendrogram analyses using the SAS Princom and Cluster procedure (SAS Institute, Cary, NC) were performed. Six principal components accounted for 80.39% of the morphological variability of the introductions evaluated. The most promising materials in terms of average fruit weight, yield per plant and per hectare, and soluble solids, vitamin C and lycopene contents were IAC1624, IAC391, IAC3652, LA2131, IAC424, IAC1621, IAC426, LA1480 and IAC1688. The broad phenotypic variability observed in the evaluated introductions favors the potential selection and breeding of tomato for traits associated with fruit production and quality.

Keywords : Solanum lycopersicum var; cerasiforme; lycopene; phenotypic variability; Colombia.

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