INFLUENCE OF LATE BLIGHT (PHYTOPHTHORA INFESTANS) ATTACK ON NUTRITIONAL QUALITY OF TOMATO

Authors

  • Mirela Paraschivu Romanian Movement for Quality
  • Cristina Babeanu University of Craiova, Faculty of Mathematics and Natural Sciences, Department of Chemistry
  • Rodica Soare University of Craiova, Faculty of Agriculture and Horticulture
  • Maria Dinu University of Craiova, Faculty of Agriculture and Horticulture
  • Madalina Dragoi University of Craiova, Faculty of Mathematics and Natural Sciences, Department of Chemistry

Abstract

The effect of natural infection with Late Blight (Phytophthora infestrans) on chemical fruit quality on six tomato (Lycopersicon esculentum) varieties (Menhir F1, Lady Rosa F1, Kilates F1, Anthalia F1, Prekos F1, Vanessa F1) was investigated in a field trial. Plants were exposed to stress produced by natural infection with P.infestans and biochemical quality parameters were analyzed as well as antioxidant activities for both treated and untreated variants. P.infestans attack on tomato was associated with lower total soluble solids and sugar content and an increased acidity. There was no significant correlation between lycopen content and pathogen attack. Antioxidant activity reflected by PPH radical scavenging activity and ABTS radical cation scavenging activity increased in case of pathogen`s attack.

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Published

2014-12-02