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      Brassica carinata for control of Phytophthora spp. in strawberry field crops

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          Abstract

          Soil biofumigation (SB) and soil solarization (SS) are nonchemical methods for the control of soilborne pathogens. SS uses solar radiation to heat soil and SB is based on the action of volatile compounds produced by the decomposition of Cruciferae, essentially glucosinolates (Gs) and isothiocyanates (ITCs). Brassica spp. are used as biofumigant because of their different concentrations and types of ITCs that are different in their toxicity against pathogenic fungi. Suppressiveness of the Brassica varies between species. Biofumigant effect depends on plant age and environmental growth conditions. Brassica carinata, the most effective species on the in vitro control of Phytophthora spp., was selected as biofumigant to evaluate and compare the ability of SB and SS to control Phytophthora spp. in soil and to enhance field production of strawberry. SB with B. carinata + SS reduce P. cactorum in soil and increases strawberry yield and fruit weigh.

          Translated abstract

          A biofumigação do solo (SB) e a solarização do solo (SS) são métodos não químicos para a luta contra os micróbios patogénicos do solo. A SS usa a radiação solar para aquecer o solo e o SB é baseado na acção dos compostos temporários produzidos pela decomposição das Crucíferas, essencialmente glucosinolatos (Gs) e isothiocianatos (ITCs). Brassica spp. é usada como biofumigante por causa da concentração de compostos biofumigantes e tipos diferentes de ITCs que diferem na toxicidade face aos fungos patogénicos. A capacidade supressiva de Brassica varia com a espécie. O efeito de Biofumigação depende da idade de planta e das condições ambientais de crescimento. Brassica carinata é a espécie mais eficaz in vitro, na luta contra Phytophthora spp., foi seleccionada como biofumigante para avaliar e comparar a capacidade de SB e SS na luta contra este fungo no solo, e para avaliar a produção de morango. A SB com B. carinata + SS reduz P. cactorum no solo e aumenta o rendimento da produção de morango e o peso do fruto.

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          Phytophthora diseases worldwide

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            Author and article information

            Contributors
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            Journal
            rca
            Revista de Ciências Agrárias
            Rev. de Ciências Agrárias
            Sociedade de Ciências Agrárias de Portugal (Lisboa )
            0871-018X
            December 2009
            : 32
            : 2
            : 135-138
            Affiliations
            [1 ] IFAPA Spain
            [2 ] DRAPALG - Direcção Regional de Agricultura e Pescas do Algarve Portugal
            Article
            S0871-018X2009000200013
            389a0cf1-1ed4-4743-95dd-738dbbf3b984

            http://creativecommons.org/licenses/by/4.0/

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            SciELO Portugal

            Self URI (journal page): http://www.scielo.mec.pt/scielo.php?script=sci_serial&pid=0871-018X&lng=en
            Categories
            AGRICULTURE, MULTIDISCIPLINARY

            General agriculture
            Soil biofumigation,soil solarization,Brassica carinata,Phytophthora cactorum,glucosinolates,Biofumigação do solo,solarização do solo,glucosinolatos

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