Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy

A fungicide composed of a triazole (cyproconazole), a strobilurin (azoxystrobin) and a mineral oil (nimbus) is used for disease control, Asian Rust mainly, currently considered one of the major soybean diseases in Brazil. With the purpose of studying the effect of the fungicide and its constituents...

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Main Authors: Paulo Roberto de Camargo e Castro, Maria Bernadete Gonçalves Martins, Raphael Gonçalves Martins, Isabella Romitelli
Format: Article
Language:Portuguese
Published: Universidade Federal da Grande Dourados 2013-05-01
Series:Agrarian
Subjects:
Online Access:http://ojs.ufgd.edu.br/index.php/agrarian/article/view/1791
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author Paulo Roberto de Camargo e Castro
Maria Bernadete Gonçalves Martins
Raphael Gonçalves Martins
Isabella Romitelli
author_facet Paulo Roberto de Camargo e Castro
Maria Bernadete Gonçalves Martins
Raphael Gonçalves Martins
Isabella Romitelli
author_sort Paulo Roberto de Camargo e Castro
collection DOAJ
description A fungicide composed of a triazole (cyproconazole), a strobilurin (azoxystrobin) and a mineral oil (nimbus) is used for disease control, Asian Rust mainly, currently considered one of the major soybean diseases in Brazil. With the purpose of studying the effect of the fungicide and its constituents on histological characteristics of soybean (Glycine max cv. Pintado) leaves, the fungicides plus mineral oil, cyproconazole, azoxystrobin plus mineral oil and just mineral oil, were applied at R1 stage (anthesis), R3 and R5 stages. Fourteen days after the last application, central leaflet of each trifoliate leaf were harvested from five plants. Leaf anatomy variables were measured in four leaves collected in each of five plants per treatment. Histological analysis showed that the fungicide plus mineral oil increased leaf blade thickness, midrib, xylem, phloem and the width of the midrib. Azoxystrobin plus mineral oil increased the thickness of midrib, xylem, phloem and the width of the midrib. Cyproconazole increased the thickness of xylem and phloem. Finally, mineral oil reduced the thickness of leaf blade and midrib.
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spelling doaj.art-7648b23a82164f14bebf4a5ec50996bc2022-12-22T00:47:46ZporUniversidade Federal da Grande DouradosAgrarian1984-252X1984-25382013-05-0162015416010.30612/agrarian.v6i20.17911205Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomyPaulo Roberto de Camargo e Castro0Maria Bernadete Gonçalves Martins1Raphael Gonçalves Martins2Isabella Romitelli3USP – Campus “Luiz de QueirozUnesp/ Campus do Litoral PaulistaUSP- Universidade de São Paulo, Campus "Luiz de Queiroz", Piracicaba (SP)Unesp/ Campus do Litoral PaulistaA fungicide composed of a triazole (cyproconazole), a strobilurin (azoxystrobin) and a mineral oil (nimbus) is used for disease control, Asian Rust mainly, currently considered one of the major soybean diseases in Brazil. With the purpose of studying the effect of the fungicide and its constituents on histological characteristics of soybean (Glycine max cv. Pintado) leaves, the fungicides plus mineral oil, cyproconazole, azoxystrobin plus mineral oil and just mineral oil, were applied at R1 stage (anthesis), R3 and R5 stages. Fourteen days after the last application, central leaflet of each trifoliate leaf were harvested from five plants. Leaf anatomy variables were measured in four leaves collected in each of five plants per treatment. Histological analysis showed that the fungicide plus mineral oil increased leaf blade thickness, midrib, xylem, phloem and the width of the midrib. Azoxystrobin plus mineral oil increased the thickness of midrib, xylem, phloem and the width of the midrib. Cyproconazole increased the thickness of xylem and phloem. Finally, mineral oil reduced the thickness of leaf blade and midrib.http://ojs.ufgd.edu.br/index.php/agrarian/article/view/1791Asian rust, azoxystrobin, cyproconazole, mineral oil
spellingShingle Paulo Roberto de Camargo e Castro
Maria Bernadete Gonçalves Martins
Raphael Gonçalves Martins
Isabella Romitelli
Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
Agrarian
Asian rust, azoxystrobin, cyproconazole, mineral oil
title Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
title_full Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
title_fullStr Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
title_full_unstemmed Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
title_short Effects of cyproconazole, azoxystrobin and mineral oil on soybean leaf anatomy
title_sort effects of cyproconazole azoxystrobin and mineral oil on soybean leaf anatomy
topic Asian rust, azoxystrobin, cyproconazole, mineral oil
url http://ojs.ufgd.edu.br/index.php/agrarian/article/view/1791
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