Controle da podridão cinzenta da maçã por produtos naturais biologicamente ativos

Translated title of the contribution: Control of grey rot of apple fruits by biologically active natural products

Jaime R. Montealegre, Catalina López, Marciel J. Stadnik, José L. Henríquez, Rodrigo Herrera, Rubén Polanco, Robson M. di Piero, Luz M. Pérez

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Biorend SC (chitosan), BC-1000 EC (grapefruit extract plus bioflavonoids) and ECO-100 SC (bioflavonoids plus organic acids, citric phytoalexins, fatty acids, glycerides and sugars), respectively, suppressed grey rot of apple caused by B. cinerea by 80.1%, 79.0% and 76.5% when used as post-harvest treatments under controlled conditions. When applied as combined pre- and post-harvest treatments Biorend SC inhibited fruit rot by 49.9 %, while BC-1000 EC and ECO-100 SC were ineffective. None of the products inhibited fruit rot when applied as pre-harvest treatments under controlled conditions or as post-harvest treatments under commercial conditions. The algal polysaccharide ulvan used in post-harvest treatments suppressed grey rot by 56.0% under controlled conditions, but had no inhibitory effect on combined pre- and post-harvest treatments. The inability of products to activate defense mechanisms (chitinase and peroxidase) of fruits was consistent with the unsuccessful control of rot by pre-harvest treatment. The results suggest that the natural products used have potential for use in integrated management of Botrytis rot when applied after harvest.

Translated title of the contributionControl of grey rot of apple fruits by biologically active natural products
Original languagePortuguese
Pages (from-to)271-276
Number of pages6
JournalTropical Plant Pathology
Volume35
Issue number5
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Plant Science
  • Agronomy and Crop Science

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