<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662019000100212</article-id>
<article-id pub-id-type="doi">10.15174/au.2019.2306</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Producción y cambios morfológicos de Pennisetum ciliare cv. H-17 en función de la edad de rebrote y altura de pradera]]></article-title>
<article-title xml:lang="en"><![CDATA[Yield and morphological changes of Pennisetum ciliare cv. H-17 depending on age of regrowth and prairie height]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garay Martínez]]></surname>
<given-names><![CDATA[Jonathan Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Joaquín Cancino]]></surname>
<given-names><![CDATA[Santiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada Drouaillet]]></surname>
<given-names><![CDATA[Benigno]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez González]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Limas Martínez]]></surname>
<given-names><![CDATA[Andrés Gilberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Meléndez]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas García]]></surname>
<given-names><![CDATA[Adelaido Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas Facultad de Ingeniería y Ciencias Centro Universitario &#8220;Lic. Adolfo López Mateos&#8221;]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>29</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662019000100212&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se evaluó la producción de materia seca (MS) y composición morfológica en función de la edad de rebrote (ER; cuatro, seis y ocho semanas) y altura de pradera (AP) en Pennisetum ciliare cv. H-17, durante época de lluvias (ELL) y seca (ES). Las variables fueron MS total (MSTT), hoja (MSh), tallo (MSt), material muerto (MSmm) y AP. Se utilizó un diseño completamente al azar con cuatro repeticiones y análisis de regresión lineal. Durante ELL, la MSTT fue similar (p &gt; 0.05) entre ER (8342 kg ha-1) y disminuyó 90% en la ES. Durante ELL, se presentó mayor (p &lt; 0.05) MSh a cuatro semanas, mientras que a ocho se presentó mayor MSt y MSmm. La MSt y MSmm se manifestaron cuando la AP fue de 34 cm y 47 cm, respectivamente. La ER y AP tuvieron efecto significativo en el rendimiento y comportamiento estructural de MS en Pennisetum ciliare cv. H-17.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Dry matter production (DM) and morphological composition were evaluated according to regrowth age (RA; four, six, and eight weeks) and prairie height (PH) in Pennisetum ciliare cv. H-17, during rainy season (RS) and drought (DS). The variables were total MS (TDM), leaf (LDM), stem (SDM), dead material (DMDM) and PH. A completely randomized design with four repetitions and linear regression analysis was used. During RS, the TDM was similar (p &gt; 0.05) between RA (8342 kg ha-1) and decreased 90% in DS. During RS, there was greater (p &lt; 0.05) LDM at four weeks, while at eight there was greater SDM and DMDM. The SDM and DDM were manifested when the PH was 34 cm and 47 cm, respectively. The RA and PH had a significant effect on the performance and structural behavior of DM in Pennisetum ciliare cv. H-17.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tasa de crecimiento]]></kwd>
<kwd lng="es"><![CDATA[época de lluvias]]></kwd>
<kwd lng="es"><![CDATA[época de sequía]]></kwd>
<kwd lng="es"><![CDATA[índice de área foliar]]></kwd>
<kwd lng="es"><![CDATA[área foliar específica]]></kwd>
<kwd lng="en"><![CDATA[Growth rate]]></kwd>
<kwd lng="en"><![CDATA[rainy season]]></kwd>
<kwd lng="en"><![CDATA[dry season]]></kwd>
<kwd lng="en"><![CDATA[leaf area index]]></kwd>
<kwd lng="en"><![CDATA[specific leaf area]]></kwd>
</kwd-group>
</article-meta>
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