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      Tratamento de sementes de sorgo com inseticidas Translated title: Insecticide treatment of sorghum seeds

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          Abstract

          O tratamento de sementes com inseticidas é um método eficiente que auxilia o manejo integrado de pragas, porém, há escassez de informações de produtos que apresentem seletividade para a cultura do sorgo. O objetivo deste trabalho foi o de avaliar a influência do tratamento de sementes de sorgo com inseticidas, contendo um ou dois princípios ativos, sem e com o armazenamento por 30 dias, na fase inicial de desenvolvimento das plantas. O experimento foi conduzido na Fesurv-Universidade de Rio Verde, em Rio Verde-GO com dez inseticidas (thiodicarb, fipronil, acephate, thiametoxam, imidacloprid, [imidacloprid+thiodicarb], imidacloprid+thiodicarb, imidacloprid+fipronil, thiametoxam+thiodicarb, thiametoxam+fipronil, acrescido da testemunha sem inseticida) sem e com o armazenamento das sementes por 30 dias. Os resultados obtidos permitiram constatar que o armazenamento por 30 dias das sementes de sorgo tratadas com inseticidas diminui o percentual de germinação. A mistura imidaclopridrid+thiodicarb apresenta maior potencial para uso no tratamento de sementes de sorgo. O inseticida acephate causa fitotoxicidade às plântulas de sorgo ao contrário do fipronil, thiametoxam e a mistura thiametoxam+thiodicarb que não prejudicam o vigor das sementes de sorgo.

          Translated abstract

          Seed treatment with insecticides is an effective tool in integrated pest management, but information on selective products to treat sorghum seeds is limited. The objective of this study was to evaluate the effects of treating sorghum seeds with insecticides containing one or two active ingredients, with and without storage for 30 days, on the early plant development. The experiment was conducted at Fesurv-Universidade de Rio Verde, in Rio Verde-GO, using ten insecticides (thiodicarb, fipronil, acephate, thiamethoxam, imidacloprid, [imidacloprid+thiodicarb], imidacloprid+thiodicarb, imidacloprid+fipronil, thiamethoxam+thiodicarb, thiamethoxam+fipronil, plus a non-insecticide control, with and without 30 day seed storage. The results showed that storage of sorghum seeds treated with insecticides for 30 days reduced the germination percentage. The imidacloprid+thiodicarb mixture has more potential for treating sorghum seeds. The insecticide acephate causes more phytotoxicity to the sorghum seedlings compared to fipronil, thiamethoxam and the thiamethoxam+thiodicarb mixture. The insecticides did not adversely affect sorghum seed vigor.

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          Most cited references 28

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          Regras para análise de sementes

           E Elli,  M. Bensch,  J. Waquim (1992)
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            Recomendaciones sobre unificación de los sistemas de evaluación en ensayos de control de malezas

            (1974)
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              Predatory Fauna in Cornfields and Response to Imidacloprid Seed Treatment

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbs
                Revista Brasileira de Sementes
                Rev. bras. sementes
                Associação Brasileira de Tecnologia de Sementes (Londrina )
                0101-3122
                2011
                : 33
                : 2
                : 299-309
                Affiliations
                [1 ] Universidade de Rio Verde Brazil
                Article
                S0101-31222011000200012
                10.1590/S0101-31222011000200012

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

                Product
                Product Information: SciELO Brazil
                Categories
                PLANT SCIENCES

                Plant science & Botany

                fitotoxicidade, pragas, pest, Sorghum bicolor, phytotoxicity

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