<?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>1027-152X</journal-id>
<journal-title><![CDATA[Revista Chapingo. Serie horticultura]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo Ser.Hortic]]></abbrev-journal-title>
<issn>1027-152X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1027-152X2020000100005</article-id>
<article-id pub-id-type="doi">10.5154/r.rchsh.2019.06.011</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Doses and number of applications of ethephon in sex reversal of zucchini squash flowers]]></article-title>
<article-title xml:lang="es"><![CDATA[Dosis y número de aplicaciones de etefón en la reversión sexual de flores de calabacita]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Edgard Henrique Costa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tavares]]></surname>
<given-names><![CDATA[Aline Torquato]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Tiago Alves]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[Irais Dolores Pascual]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alves]]></surname>
<given-names><![CDATA[Francielly Quitéria Guimarães]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[Ildon Rodrigues-do]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual Paulista "Júlio de Mesquita Filho"  ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>BRAZIL</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal do Tocantins  ]]></institution>
<addr-line><![CDATA[Tocantins ]]></addr-line>
<country>BRAZIL</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>14</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1027-152X2020000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1027-152X2020000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1027-152X2020000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Ethylene can change the flowering pattern of some cucurbits, favoring the emergence of female flowers. The objective was to determine the influence of doses and number of ethephon applications in sex reversal of zucchini (Cucurbita pepo L.). The experiment was conducted in a 4 x 4 factorial arrangement, plus a control (natural flowering), the first factor being the ethephon doses (125, 250, 375 and 500 mg·L-1) and the second the number of applications (1, 2, 3 and 4). Ethephon influenced the sexual expression of zucchini, but not enough to achieve complete sex reversal. The 500 mg·L-1 dose provided the largest feminization for all applications. Ethephon might be a useful tool for zucchini breeding programs.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El etileno puede cambiar el patrón de floración de algunas cucurbitáceas, lo que favorece la aparición de flores femeninas. El objetivo de este estudio fue determinar la influencia de las dosis y el número de aplicaciones de etefón en la reversión sexual de flores de calabacita (Cucurbita pepo L.). El experimento se realizó bajo un arreglo factorial 4 x 4, más un testigo (floración natural); el primer factor fue la dosis de etefón (125, 250, 375 y 500 mg·L-1), y el segundo fue el número de aplicaciones (1, 2, 3 y 4). El etefón influyó en la expresión sexual de la calabacita, pero no lo suficiente como para lograr una reversión sexual completa. La dosis de 500 mg·L-1 de etefón proporcionó la mayor feminización en todas las aplicaciones; por lo que, el etefón podría ser una herramienta útil en los programas de reproducción de calabacita.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cucurbita pepo]]></kwd>
<kwd lng="en"><![CDATA[ethylene]]></kwd>
<kwd lng="en"><![CDATA[phytohormones]]></kwd>
<kwd lng="en"><![CDATA[sex expression in Cucurbits]]></kwd>
<kwd lng="es"><![CDATA[Cucurbita pepo]]></kwd>
<kwd lng="es"><![CDATA[etileno]]></kwd>
<kwd lng="es"><![CDATA[fitohormonas]]></kwd>
<kwd lng="es"><![CDATA[expresión sexual en cucurbitáceas]]></kwd>
</kwd-group>
</article-meta>
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