Resumen

PLANA, Dagmara et al. Fruit sunspot performance screening in tomato (Solanum lycopersicum). cultrop [online]. 2009, vol.30, n.4, pp. 00-00. ISSN 1819-4087.

This paper shows sunspot performance in tomato fruits evaluated for two years. Four tomato (Solanum lycopersicum) varieties growing under optimal sowing conditions were studied. Results prove sunspot occurrence in fruits from tested varieties: symptoms of yellow shoulder (YS), yellow shoulder disorder under the red skin of the yellow fruit (YSD) and internal white tissue (IWT). Just a single variety presented a highly intense and severe YS, Severino Corbarese with 80,8 %. YSD was the most frequent symptom recorded in two years, followed by IWT. Global radiation and rainfall were the unique climatic factors differing within both years. The occurrence and severity of this disorder was dependent genotype; however, the interaction with these environmental factors could trigger its appearance. These results recommend the need to conduct more detailed genetic studies on the susceptible or tolerant germplasm, so that to find a clear explanation of its causes and development.

Palabras clave : tomatoes; Solanum lycopersicum; spots; radiation damage; plant tissue.

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