Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee

Several researches focusing the use of silicon in plants have demonstrated an increase of plant resistance to stress and pests. This work aims to determine the effect of silicon, applied as calcium silicate (CaSiO3) on mealybug probing behavior by using the technique of Electrical Penetration Graphs...

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Authors: Santa-Cecília, Lenira Viana Costa; Prado, Ernesto; Morais, Jair Campos de
Format: Article
Status:Published version
Publication date:2014
Country:Brasil
Institution:UFLA
Repository:Coffee Science (Online)
Language:Portuguese
OAI Identifier:oai:coffeescience.ufla.br:article/526
Online Access:https://coffeescience.ufla.br/index.php/Coffeescience/article/view/526
Access Level:Open access
Keyword:Coccoidea
calcium silicate
Coffea arabica L.
EPG
probing behavior
silicato de cálcio
comportamento alimentar
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author Santa-Cecília, Lenira Viana Costa
author2 Prado, Ernesto
Morais, Jair Campos de
author2_role author
author
author_browse Morais, Jair Campos de
Prado, Ernesto
Santa-Cecília, Lenira Viana Costa
author_facet Santa-Cecília, Lenira Viana Costa
Prado, Ernesto
Morais, Jair Campos de
author_role author
collection Coffee Science (Online)
description Several researches focusing the use of silicon in plants have demonstrated an increase of plant resistance to stress and pests. This work aims to determine the effect of silicon, applied as calcium silicate (CaSiO3) on mealybug probing behavior by using the technique of Electrical Penetration Graphs (EPG). The citrus mealybug, [Planococcus citri (Pseudococcidae)], and coffee plants cvs. Catuaí and Catucaí were used in these experiments with silicate applied in plant pots at rate of 1 g of calcium silicate/250 g of soil/pot. The mealybug probing behavior showed that on treated plants, the mealybugs reached the phloem vessels, their feeding site, at similar time than untreated plants, demonstrating absence of mechanical barrier to stylet penetration after silicate application. In addition, other parameters associated with phloem and xylem phases were not significant, either comparing cultivars or silicate treatments. By consequence, calcium silicate applied in soil at these rates did not affect the citrus mealybug probing behavior in coffee plants.
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instname_str Universidade Federal de Lavras (UFLA)
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oai_identifier_str oai:coffeescience.ufla.br:article/526
publishDate 2014
publishDateSort 2014
publisher Editora UFLA
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reponame_str Coffee Science (Online)
spelling Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee Avalação do silício no comportamento alimentar da cochonilia-branca [Planococcus citri (Risso) (Pseudococcidae)] em cafeeiro Santa-Cecília, Lenira Viana Costa Prado, Ernesto Morais, Jair Campos de Coccoidea calcium silicate Coffea arabica L. EPG probing behavior silicato de cálcio comportamento alimentar Several researches focusing the use of silicon in plants have demonstrated an increase of plant resistance to stress and pests. This work aims to determine the effect of silicon, applied as calcium silicate (CaSiO3) on mealybug probing behavior by using the technique of Electrical Penetration Graphs (EPG). The citrus mealybug, [Planococcus citri (Pseudococcidae)], and coffee plants cvs. Catuaí and Catucaí were used in these experiments with silicate applied in plant pots at rate of 1 g of calcium silicate/250 g of soil/pot. The mealybug probing behavior showed that on treated plants, the mealybugs reached the phloem vessels, their feeding site, at similar time than untreated plants, demonstrating absence of mechanical barrier to stylet penetration after silicate application. In addition, other parameters associated with phloem and xylem phases were not significant, either comparing cultivars or silicate treatments. By consequence, calcium silicate applied in soil at these rates did not affect the citrus mealybug probing behavior in coffee plants. Pesquisas visando à utilização de silício contra insetos-praga têm demonstrado o aumento do grau de resistência das plantas ao ataque desses organismos. Assim, foi estudado o efeito desse mineral no comportamento alimentar da cochonilhabranca [Planococcus citri (Pseudococcidae)] em cafeeiro, utilizando a técnica de monitoramento eletrônico (EPG). A fonte de silício foi o silicato de cálcio (CaSiO3) incorporado ao solo na dosagem de 1 g/250 g de solo/vaso, contendo plantas de Coffea arabica cvs. Catuaí e Catucaí e a testemunha (sem aplicação). O estudo do comportamento alimentar mostrou que, nas plantas crescidas em solo tratado com silicato de cálcio, as cochonilhas atingiram o floema, seu local de alimentação, em tempo similar ao verificado nas plantas não tratadas, demonstrando ausência de barreira mecânica por efeito da aplicação do silício. Nenhum parâmetro associado às fases floemáticas e xilemáticas apresentou diferenças, seja nas cultivares ou nos tratamentos com e sem silicato de cálcio. Dessa forma, o emprego do silicato, na dosagem avaliada, não afetou os parâmetros do comportamento alimentar estudado na cochonilha P. citri, em cafeeiro. Editora UFLA https://coffeescience.ufla.br/index.php/Coffeescience/article/view/526
spellingShingle Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
Santa-Cecília, Lenira Viana Costa
Coccoidea
calcium silicate
Coffea arabica L.
EPG
probing behavior
silicato de cálcio
comportamento alimentar
status_str publishedVersion
title Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
title_full Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
title_fullStr Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
title_full_unstemmed Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
title_short Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
title_sort Evaluation of silicon on the probing behavior of the citrus mealybug [Planococcus citri (risso) (Pseudococcidae)] in coffee
topic Coccoidea
calcium silicate
Coffea arabica L.
EPG
probing behavior
silicato de cálcio
comportamento alimentar
topic_facet Coccoidea
calcium silicate
Coffea arabica L.
EPG
probing behavior
silicato de cálcio
comportamento alimentar
url https://coffeescience.ufla.br/index.php/Coffeescience/article/view/526