<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-3309</journal-id>
<journal-title><![CDATA[Revista mexicana de fitopatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fitopatol]]></abbrev-journal-title>
<issn>0185-3309</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitopatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-33092018000200276</article-id>
<article-id pub-id-type="doi">10.18781/r.mex.fit.1712-3</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Patogenicidad de Magnaporthe oryzae en variedades y líneas de trigo cultivadas en Paraguay]]></article-title>
<article-title xml:lang="en"><![CDATA[Pathogenicity of Magnaporthe oryzae in varieties and wheat lines grown in Paraguay]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[Alice Rocío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mohan-Kohli]]></surname>
<given-names><![CDATA[Man]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Cámara Paraguaya de Exportadores y Comercializadores de Cereales y Oleaginosas CAPECO  ]]></institution>
<addr-line><![CDATA[ Caacupé]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Cámara Paraguaya de Exportadores y Comercializadores de Cereales y Oleaginosas CAPECO  ]]></institution>
<addr-line><![CDATA[ Asunción]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2018</year>
</pub-date>
<volume>36</volume>
<numero>2</numero>
<fpage>276</fpage>
<lpage>286</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-33092018000200276&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-33092018000200276&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-33092018000200276&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El brusone causado por Magnaporthe oryzae patotipo Triticum, es uno de los problemas más serios para la producción de trigo en Sudamérica. Debido al número reducido de fuentes de resistencia, la identificación de nuevas fuentes es de suma importancia. En este trabajo se evaluó la reacción de las variedades de trigo sembradas en Paraguay a la infección por M. oryzae. Treinta y dos variedades y cuatro líneas avanzadas del Programa Nacional de Investigación de Trigo del Instituto Paraguayo de Tecnología Agraria se inocularon con tres cepas, mediante aspersión, con una suspensión de 5 x 104 conidios mL-1. La evaluación se realizó a los 15 días utilizando una escala de severidad de 0-4. Los datos se analizaron mediante la prueba de Kruskal-Wallis. Con base en las medianas de severidad, los materiales se clasificaron como Resistentes (0-1), Moderadamente Resistentes (1.1-2), Moderadamente susceptibles (2.1-3) y Susceptibles (3.1-4). La variedad Canindé 1 fue resistente a las tres cepas, mientras CD 116 fue resistente a uno y moderadamente resistente a dos. Los demás genotipos fueron susceptibles y moderadamente susceptibles a las tres cepas, demostrando la susceptibilidad de las variedades sembradas en Paraguay y la necesidad de ampliar la base de resistencia en el programa nacional de mejoramiento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Wheat blast caused by Magnaporthe oryzae pathotype Triticum has become one of the most important crop production problems in South America. Given the availability of few sources of resistance, the identification of newer sources has become urgent. The present study was designed to evaluate the reaction of major wheat varieties grown in Paraguay to M. oryzae infection. Thirty-two wheat varieties and four advanced breeding lines were provided by the National Wheat Program of the Paraguayan Institute of Agrarian Technology. These varieties were spray inoculated with three isolates of M. oryzae using 5.104 conidia mL-1. The disease reaction was evaluated on a severity scale of 0-4, 15 days after inoculation. Data were analyzed using the Kruskal-Wallis test. Considering the median rating of infection, the materials were classified as Resistant (0-1), Moderately Resistant (1.1-2), Moderately Susceptible (2.1-3) and Susceptible (3.1-4). The variety Canindé 1 was resistant to all isolates, and CD 116 was resistant to one and moderately resistance to two isolates. All the remaining varieties were susceptible or moderately susceptible to the three isolates, showing the susceptibility of major wheat varieties grown in Paraguay, and an urgent need for widening the genetic basis of resistance to wheat blast disease in the National Wheat Breeding Program.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pyricularia]]></kwd>
<kwd lng="es"><![CDATA[resistencia]]></kwd>
<kwd lng="es"><![CDATA[Triticum]]></kwd>
<kwd lng="en"><![CDATA[Pyricularia]]></kwd>
<kwd lng="en"><![CDATA[resistance]]></kwd>
<kwd lng="en"><![CDATA[Triticum]]></kwd>
</kwd-group>
</article-meta>
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