Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/65719
Type: Artigo de periódico
Title: Evaluating electrolysed oxidising water as a fungicide using two rose varieties (Rosa sp) in greenhouse conditions
Author: Fernaudez, BR
Castillo, B
Diaz, E
Camacho, JH
Abstract: The aim of evaluating electrolysed oxidising water (EOW) for controlling botrytis (Botrytis cinerea), powdery mildew (Sphaerotheca pannosa) and downy mildew (Peronospora sparsa) using two greenhouse rose varieties was to verify this new technology's effectiveness by contrast with traditional chemical handling. Two concentrations of hypochlorous acid in EOW were produced during electrolysis in aP1200 cell and applied at three application volumes using stationary hydraulic pressure equipment. The commercial rose varieties (Rosa sp) used here were the Orlando and Versilia varieties. The EOW used was slightly acidic type C, pH 5.0, having high-oxide-reduction potential (ORP) +850 millivolts (mV). Two types of EOW were evaluated for this study: EOW C-50 (50 ppm HOCl) and EOW C-75 (75 ppm HOCl). The test results showed the feasibility of EOW as a fungicide at the volumes tested here, providing significant control of powdery mildew which has high incidence due to climatic conditions. The best disease control was achieved by applying the highest volume; however, some curled leaflets appeared with this application.
Subject: Electrolysed oxidising water
application volume
hypochlorous acid concentration
powdery mildew
downy mildew
greymould
roses
Country: Colombia
Editor: Univ Nac Colombia, Fac Ingenieria
Rights: aberto
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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